Prepare 4.2.3 release

Decrease queue batch size. Log all 400 response from the Mojang's API. Resolves #10 .
Prepare 4.2.2 release
2025-05-31 14:11:51 +05:30 · 2019-10-03 01:26:34 +03:00 · 2019-10-03 01:24:25 +03:00 · 2019-06-19 01:02:41 +03:00 · 2019-06-19 00:56:09 +03:00 · 2019-06-18 23:34:16 +03:00
40 changed files with 3739 additions and 1054 deletions
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@ sudo: required

 language: go
 go:
-  - 1.9
+  - 1.12

 services:
  - docker
@@ -20,7 +20,8 @@ jobs:
  include:
    - stage: test
      script:
-      - go test -v -race ./...
+      - go test -v -race -coverprofile=coverage.txt -covermode=atomic ./...
+      - bash <(curl -s https://codecov.io/bash)
    - stage: deploy
      script:
      - docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -0,0 +1,73 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased] - xxxx-xx-xx
+
+## [4.2.3] - 2019-10-03
+### Changed
+- Mojang's textures queue batch size [reduced to 10](https://wiki.vg/index.php?title=Mojang_API&type=revision&diff=14964&oldid=14954).
+- 400 BadRequest errors from the Mojang's API are now logged.
+
+## [4.2.2] - 2019-06-19
+### Fixed
+- GC for in-memory textures cache has not been initialized.
+
+## [4.2.1] - 2019-05-06
+### Changed
+- Improved Keep-Alive settings for HTTP client used to perform requests to Mojang's APIs.
+- Mojang's textures queue now has static delay of 1 second after each iteration to prevent strange `429` errors.
+- Mojang's textures queue now caches even errored responses for signed textures to avoid `429` errors.
+- Mojang's textures queue now caches textures data for 70 seconds to avoid strange `429` errors.
+- Mojang's textures queue now doesn't log timeout errors.
+
+### Fixed
+- Panic when Redis connection is broken.
+- Duplication of Redis connections pool for Mojang's textures queue.
+- Removed validation rules for `hash` field.
+
+## [4.2.0] - 2019-05-02
+### Added
+- `CHANGELOG.md` file.
+- [#1](https://github.com/elyby/chrly/issues/1): Restored Mojang skins proxy.
+- New StatsD metrics:
+  - Counters:
+    - `ely.skinsystem.{hostname}.app.mojang_textures.invalid_username`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.request`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.cache_hit_nil`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.queued`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.cache_hit`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.already_in_queue`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.uuid_miss`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.uuid_hit`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.textures.cache_hit`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.textures.request`
+  - Gauges:
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.iteration_size`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.queue_size`
+  - Timers:
+    - `ely.skinsystem.{hostname}.app.mojang_textures.result_time`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.round_time`
+    - `ely.skinsystem.{hostname}.app.mojang_textures.textures.request_time`
+
+### Changed
+- Bumped Go version to 1.12.
+- Bumped Alpine version to 3.9.3.
+
+### Fixed
+- `/textures` request no longer proxies request to Mojang in a case when there is no information about the skin,
+  but there is a cape.
+- [#5](https://github.com/elyby/chrly/issues/5): Return Redis connection to the pool after commands are executed
+
+### Removed
+- `hash` field from `/textures` response because the game doesn't use it and calculates hash by getting the filename
+  from the textures link instead.
+- `hash` field from `POST /api/skins` endpoint.
+
+[Unreleased]: https://github.com/elyby/chrly/compare/4.2.3...HEAD
+[4.2.3]: https://github.com/elyby/chrly/compare/4.2.2...4.2.3
+[4.2.2]: https://github.com/elyby/chrly/compare/4.2.1...4.2.2
+[4.2.1]: https://github.com/elyby/chrly/compare/4.2.0...4.2.1
+[4.2.0]: https://github.com/elyby/chrly/compare/4.1.1...4.2.0
--- a/4
+++ b/4
@@ -1,7 +1,9 @@
-FROM alpine:3.7
+FROM alpine:3.9.3

 EXPOSE 80

+RUN apk add --no-cache ca-certificates
+
 ENV STORAGE_REDIS_HOST=redis
 ENV STORAGE_FILESYSTEM_HOST=/data

--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -2,183 +2,333 @@


 [[projects]]
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  branch = "master"
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-  packages = [".","hcl/ast","hcl/parser","hcl/scanner","hcl/strconv","hcl/token","json/parser","json/scanner","json/token"]
+  packages = [
+    ".",
+    "hcl/ast",
+    "hcl/parser",
+    "hcl/printer",
+    "hcl/scanner",
+    "hcl/strconv",
+    "hcl/token",
+    "json/parser",
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+  ]
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  packages = ["."]
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 [[projects]]
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  packages = ["."]
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  revision = "be5ece7dd465ab0765a9682137865547526d1dfb"
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 [[projects]]
  branch = "master"
+  digest = "1:19a9f4143462f07553e9bf6ae0f1b8633a2c44763b1df90d4e9e49f51cd8423a"
  name = "github.com/mediocregopher/radix.v2"
-  packages = ["cluster","pool","redis","util"]
-  revision = "d234cfb904a91daafa4e1f92599a893b349cc0c2"
+  packages = [
+    "cluster",
+    "pool",
+    "redis",
+    "util",
+  ]
+  pruneopts = ""
+  revision = "b67df6e626f993b64b3ca9f4b8630900e61002e3"

 [[projects]]
  branch = "master"
+  digest = "1:c9ede10a9ded782d25d1f0be87c680e11409c23554828f19a19d691a95e76130"
  name = "github.com/mitchellh/mapstructure"
  packages = ["."]
+  pruneopts = ""
  revision = "d0303fe809921458f417bcf828397a65db30a7e4"

 [[projects]]
  branch = "master"
+  digest = "1:c62e653e0a78bcf08fd56c764e5725e604693ffbd35b2b283b360f174d073a75"
  name = "github.com/mono83/slf"
-  packages = [".","filters","params","rays","recievers","recievers/sentry","recievers/statsd","recievers/writer","wd"]
+  packages = [
+    ".",
+    "filters",
+    "params",
+    "rays",
+    "recievers",
+    "recievers/sentry",
+    "recievers/statsd",
+    "recievers/writer",
+    "wd",
+  ]
+  pruneopts = ""
  revision = "79153e9636db86e1c6b74d74dd04176f257a4f2d"

 [[projects]]
  branch = "master"
+  digest = "1:270261c28f6e71a8a31b9d308ec9145147040fd80d21563307767a8e844bfabc"
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 [[projects]]
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+  digest = "1:256484dbbcd271f9ecebc6795b2df8cad4c458dd0f5fd82a8c2fa0c29f233411"
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  packages = ["difflib"]
+  pruneopts = ""
  revision = "792786c7400a136282c1664665ae0a8db921c6c2"
  version = "v1.0.0"

 [[projects]]
  branch = "master"
+  digest = "1:c189f11a84aa8b868a4b7cd4605653160424ab299cf7cfb1c5bd2740b949928f"
  name = "github.com/spf13/afero"
-  packages = [".","mem"]
+  packages = [
+    ".",
+    "mem",
+  ]
+  pruneopts = ""
  revision = "ee1bd8ee15a1306d1f9201acc41ef39cd9f99a1b"

 [[projects]]
+  digest = "1:6ff9b74bfea2625f805edec59395dc37e4a06458dd3c14e3372337e3d35a2ed6"
  name = "github.com/spf13/cast"
  packages = ["."]
+  pruneopts = ""
  revision = "acbeb36b902d72a7a4c18e8f3241075e7ab763e4"
  version = "v1.1.0"

 [[projects]]
-  branch = "master"
+  digest = "1:a1403cc8a94b8d7956ee5e9694badef0e7b051af289caad1cf668331e3ffa4f6"
  name = "github.com/spf13/cobra"
  packages = ["."]
-  revision = "0c34d16c3123764e413b9ed982ada58b1c3d53ea"
+  pruneopts = ""
+  revision = "ef82de70bb3f60c65fb8eebacbb2d122ef517385"
+  version = "v0.0.3"

 [[projects]]
  branch = "master"
+  digest = "1:5cb42b990db5dc48b8bc23b6ee77b260713ba3244ca495cd1ed89533dc482a49"
  name = "github.com/spf13/jwalterweatherman"
  packages = ["."]
+  pruneopts = ""
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 [[projects]]
+  digest = "1:cbaf13cdbfef0e4734ed8a7504f57fe893d471d62a35b982bf6fb3f036449a66"
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  packages = ["."]
-  revision = "e57e3eeb33f795204c1ca35f56c44f83227c6e66"
-  version = "v1.0.0"
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+  version = "v1.0.3"

 [[projects]]
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  packages = ["."]
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-  version = "v1.0.0"
+  pruneopts = ""
+  revision = "9e56dacc08fbbf8c9ee2dbc717553c758ce42bc9"
+  version = "v1.3.2"

 [[projects]]
-  name = "github.com/stretchr/testify"
-  packages = ["assert"]
-  revision = "69483b4bd14f5845b5a1e55bca19e954e827f1d0"
-  version = "v1.1.4"
-
-[[projects]]
-  branch = "issue-18"
-  name = "github.com/thedevsaddam/govalidator"
+  digest = "1:711eebe744c0151a9d09af2315f0bb729b2ec7637ef4c410fa90a18ef74b65b6"
+  name = "github.com/stretchr/objx"
  packages = ["."]
-  revision = "59055296916bb3c6ad9cf3b21d5f2cf7059f8e76"
-  source = "https://github.com/erickskrauch/govalidator.git"
+  pruneopts = ""
+  revision = "477a77ecc69700c7cdeb1fa9e129548e1c1c393c"
+  version = "v0.1.1"
+
+[[projects]]
+  digest = "1:381bcbeb112a51493d9d998bbba207a529c73dbb49b3fd789e48c63fac1f192c"
+  name = "github.com/stretchr/testify"
+  packages = [
+    "assert",
+    "mock",
+    "require",
+    "suite",
+  ]
+  pruneopts = ""
+  revision = "ffdc059bfe9ce6a4e144ba849dbedead332c6053"
+  version = "v1.3.0"

 [[projects]]
  branch = "master"
+  digest = "1:86e6712cfd4070a2120c03fcec41cfcbbc51813504a74e28d74479edfaf669ee"
+  name = "github.com/tevino/abool"
+  packages = ["."]
+  pruneopts = ""
+  revision = "9b9efcf221b50905aab9bbabd3daed56dc10f339"
+
+[[projects]]
+  digest = "1:061754b9de261d8e1cf804970dff7b3e105d1cb4883ef446dbe911489ba8e9eb"
+  name = "github.com/thedevsaddam/govalidator"
+  packages = ["."]
+  pruneopts = ""
+  revision = "0413a0eb80cac8ab2d666639130658ce49a0c967"
+  version = "v1.9.6"
+
+[[projects]]
+  branch = "master"
+  digest = "1:19adc71218d62052cd18b83ebaab77961378876094081f4b1581ca28ef80395d"
  name = "golang.org/x/sys"
  packages = ["unix"]
+  pruneopts = ""
  revision = "7ddbeae9ae08c6a06a59597f0c9edbc5ff2444ce"

 [[projects]]
  branch = "master"
+  digest = "1:653926785eac385fd1d61dc16360a5194c68d4bf2541234363a9375d2e88a039"
  name = "golang.org/x/text"
-  packages = ["internal/gen","internal/triegen","internal/ucd","transform","unicode/cldr","unicode/norm"]
+  packages = [
+    "internal/gen",
+    "internal/triegen",
+    "internal/ucd",
+    "transform",
+    "unicode/cldr",
+    "unicode/norm",
+  ]
+  pruneopts = ""
  revision = "bd91bbf73e9a4a801adbfb97133c992678533126"

 [[projects]]
  branch = "v2"
+  digest = "1:81314a486195626940617e43740b4fa073f265b0715c9f54ce2027fee1cb5f61"
  name = "gopkg.in/yaml.v2"
  packages = ["."]
+  pruneopts = ""
  revision = "eb3733d160e74a9c7e442f435eb3bea458e1d19f"

 [solve-meta]
  analyzer-name = "dep"
  analyzer-version = 1
-  inputs-digest = "e6bd87f630333e3e5b03bea33720c3281a9094551bd5ced436062157fe51ab71"
+  input-imports = [
+    "github.com/SermoDigital/jose/crypto",
+    "github.com/SermoDigital/jose/jws",
+    "github.com/getsentry/raven-go",
+    "github.com/golang/mock/gomock",
+    "github.com/gorilla/mux",
+    "github.com/h2non/gock",
+    "github.com/mediocregopher/radix.v2/pool",
+    "github.com/mediocregopher/radix.v2/redis",
+    "github.com/mediocregopher/radix.v2/util",
+    "github.com/mono83/slf",
+    "github.com/mono83/slf/rays",
+    "github.com/mono83/slf/recievers/sentry",
+    "github.com/mono83/slf/recievers/statsd",
+    "github.com/mono83/slf/recievers/writer",
+    "github.com/mono83/slf/wd",
+    "github.com/spf13/cobra",
+    "github.com/spf13/viper",
+    "github.com/stretchr/testify/assert",
+    "github.com/stretchr/testify/mock",
+    "github.com/stretchr/testify/suite",
+    "github.com/tevino/abool",
+    "github.com/thedevsaddam/govalidator",
+  ]
  solver-name = "gps-cdcl"
  solver-version = 1
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -2,23 +2,27 @@ ignored = ["github.com/elyby/chrly"]

 [[constraint]]
  name = "github.com/gorilla/mux"
-  version = "1.4.0"
+  version = "^1.6.1"

 [[constraint]]
  name = "github.com/mediocregopher/radix.v2"
-
-[[constraint]]
-  name = "github.com/mono83/slf"
-
-[[constraint]]
-  name = "github.com/spf13/cobra"
  branch = "master"

+[[constraint]]
+  name = "github.com/mono83/slf"
+  branch = "master"
+
+[[constraint]]
+  name = "github.com/spf13/cobra"
+  version = "^0.0.3"
+
 [[constraint]]
  name = "github.com/spf13/viper"
+  version = "^1.0.0"

 [[constraint]]
  name = "github.com/getsentry/raven-go"
+  branch = "master"

 [[constraint]]
  name = "github.com/SermoDigital/jose"
@@ -26,19 +30,22 @@ ignored = ["github.com/elyby/chrly"]

 [[constraint]]
  name = "github.com/thedevsaddam/govalidator"
-  source = "https://github.com/erickskrauch/govalidator.git"
-  branch = "issue-18"
+  version = "^1.9.6"
+
+[[constraint]]
+  name = "github.com/tevino/abool"
+  branch = "master"

 # Testing dependencies

 [[constraint]]
  name = "github.com/stretchr/testify"
-  version = "^1.1.4"
+  version = "^1.3.0"

 [[constraint]]
  name = "github.com/golang/mock"
  version = "^1.0.0"

 [[constraint]]
-  name = "gopkg.in/h2non/gock.v1"
+  name = "github.com/h2non/gock"
  version = "^1.0.6"
--- a/README.md
+++ b/README.md
@@ -1,8 +1,15 @@
 # Chrly

-Chrly is a lightweight implementation of Minecraft skins system server. It's packaged and distributed as a Docker
-image and can be downloaded from [Dockerhub](https://hub.docker.com/r/elyby/chrly/). App is written in Go, can
-withstand heavy loads and is production ready.
+[![Written in Go][ico-lang]][link-go]
+[![Build Status][ico-build]][link-build]
+[![Coverage][ico-coverage]][link-coverage]
+[![Keep a Changelog][ico-changelog]](CHANGELOG.md)
+[![Software License][ico-license]](LICENSE)
+
+Chrly is a lightweight implementation of Minecraft skins system server with ability to proxy requests to Mojang's
+skins system. It's packaged and distributed as a Docker image and can be downloaded from
+[Dockerhub](https://hub.docker.com/r/elyby/chrly/). App is written in Go, can withstand heavy loads and is
+production ready.

 ## Installation

@@ -33,7 +40,8 @@ services:
      - ./data/redis:/data
 ```

-Chrly will mount some volumes on the host machine to persist storage for capes and Redis database.
+Chrly uses some volumes to persist storage for capes and Redis database. The configuration above mounts them to
+the host machine to do not lose data on container recreations.

 ### Config

@@ -64,13 +72,13 @@ Each endpoint that accepts `username` as a part of an url takes it case insensit
 #### `GET /skins/{username}.png`

 This endpoint responds to requested `username` with a skin texture. If user's skin was set as texture's link, then it'll
-respond with the `301` redirect to that url. If there is no record for requested username, it'll redirect to the
-Mojang skins system as: `http://skins.minecraft.net/MinecraftSkins/{username}.png` with the original username's case.
+respond with the `301` redirect to that url. If the skin entry isn't found, it'll request textures information from
+Mojang's API and if it has a skin, than it'll return a `301` redirect to it.

 #### `GET /cloaks/{username}.png`

-It responds to requested `username` with a cape texture. If user's cape file doesn't exists, then it'll redirect to the
-Mojang skins system as: `http://skins.minecraft.net/MinecraftCloaks/{username}.png` with the original username's case.
+It responds to requested `username` with a cape texture. If the cape entry isn't found, it'll request textures
+information from Mojang's API and if it has a cape, than it'll return a `301` redirect to it.

 #### `GET /textures/{username}`

@@ -79,22 +87,19 @@ This endpoint forms response payloads as if it was the `textures`' property, but
 ```json
 {
    "SKIN": {
-        "url": "http://ely.by/minecraft/skins/skin.png",
-        "hash": "55d2a8848764f5ff04012cdb093458bd",
+        "url": "http://example.com/skin.png",
        "metadata": {
            "model": "slim"
        }
    },
    "CAPE": {
-        "url": "http://skinsystem.ely.by/cloaks/username",
-        "hash": "424ff79dce9940af89c28ad80de8aaad"
+        "url": "http://example.com/cape.png"
    }
 }
 ```

-If record for the requested username wasn't found, cape would be omitted and skin would be formed for Mojang skins
-system. Hash would be formed as the username plus the half-hour-ranged time of request, which is needed to improve
-caching of Mojang skins inside Minecraft.
+If both the skin and the cape entries aren't found, it'll request textures information from Mojang's API and if it has
+a textures property, than it'll return decoded contents.

 That request is handy in case when your server implements authentication for a game server (e.g. join/hasJoined
 operation) and you have to respond with hasJoined request with an actual user textures. You have to simply send request
@@ -103,8 +108,8 @@ to the Chrly server and put the result in your hasJoined response.
 #### `GET /textures/signed/{username}`

 Actually, it's [Ely.by](http://ely.by) feature called [Server Skins System](http://ely.by/server-skins-system), but if
-you have your own source of the Mojang signatures, then you can pass it with textures and it'll be displayed in this
-method. Received response should be directly sent to the client without any modification via game server API.
+you have your own source of Mojang's signatures, then you can pass it with textures and it'll be displayed in response
+of this endpoint. Received response should be directly sent to the client without any modification via game server API.

 Response example:

@@ -128,6 +133,10 @@ Response example:

 If there is no requested `username` or `mojangSignature` field isn't set, `204` status code will be sent.

+You can adjust URL to `/textures/signed/{username}?proxy=true` to obtain textures information for provided username
+from Mojang's API. The textures will contain unmodified json with addition property with name "chrly" as shown in
+the example above.
+
 #### `GET /skins?name={username}`

 Equivalent of the `GET /skins/{username}.png`, but constructed especially for old Minecraft versions, where username
@@ -164,7 +173,6 @@ form data. `form-urlencoded` also supported, but, as you may know, it doesn't su
 | username        | string | Username. Case insensitive.                                                    |
 | uuid            | uuid   | UUID of the user.                                                              |
 | skinId          | int    | Skin identifier.                                                               |
-| hash            | string | Skin's hash. Algorithm can be any. For example `md5`.                          |
 | is1_8           | bool   | Does the skin have the new format (64x64).                                     |
 | isSlim          | bool   | Does skin have slim arms (Alex model).                                         |
 | mojangTextures  | string | Mojang textures field. It must be a base64 encoded json string. Not required.  |
@@ -250,3 +258,13 @@ If your Redis instance isn't located at the `localhost`, you can change host by

 After all of that `go run main.go serve` should successfully start the application.
 To run tests execute `go test ./...`. If your Go version is older than 1.9, then run a `/script/test`.
+
+[ico-lang]: https://img.shields.io/badge/lang-go%201.12-blue.svg?style=flat-square
+[ico-build]: https://img.shields.io/travis/elyby/chrly.svg?style=flat-square
+[ico-coverage]: https://img.shields.io/codecov/c/github/elyby/chrly.svg?style=flat-square
+[ico-changelog]: https://img.shields.io/badge/keep%20a-changelog-orange.svg?style=flat-square
+[ico-license]: https://img.shields.io/github/license/elyby/chrly.svg?style=flat-square
+
+[link-go]: https://golang.org
+[link-build]: https://travis-ci.org/elyby/chrly
+[link-coverage]: https://codecov.io/gh/elyby/chrly
--- a/api/mojang/mojang.go
+++ b/api/mojang/mojang.go
@@ -0,0 +1,194 @@
+package mojang
+
+import (
+	"bytes"
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+	"time"
+)
+
+var HttpClient = &http.Client{
+	Timeout: 3 * time.Second,
+	Transport: &http.Transport{
+		MaxIdleConnsPerHost: 1024,
+	},
+}
+
+type SignedTexturesResponse struct {
+	Id              string      `json:"id"`
+	Name            string      `json:"name"`
+	Props           []*Property `json:"properties"`
+	decodedTextures *TexturesProp
+}
+
+func (t *SignedTexturesResponse) DecodeTextures() *TexturesProp {
+	if t.decodedTextures == nil {
+		var texturesProp string
+		for _, prop := range t.Props {
+			if prop.Name == "textures" {
+				texturesProp = prop.Value
+				break
+			}
+		}
+
+		if texturesProp == "" {
+			return nil
+		}
+
+		decodedTextures, _ := DecodeTextures(texturesProp)
+		t.decodedTextures = decodedTextures
+	}
+
+	return t.decodedTextures
+}
+
+type Property struct {
+	Name      string `json:"name"`
+	Signature string `json:"signature,omitempty"`
+	Value     string `json:"value"`
+}
+
+type ProfileInfo struct {
+	Id       string `json:"id"`
+	Name     string `json:"name"`
+	IsLegacy bool   `json:"legacy,omitempty"`
+	IsDemo   bool   `json:"demo,omitempty"`
+}
+
+// Exchanges usernames array to array of uuids
+// See https://wiki.vg/Mojang_API#Playernames_-.3E_UUIDs
+func UsernamesToUuids(usernames []string) ([]*ProfileInfo, error) {
+	requestBody, _ := json.Marshal(usernames)
+	request, _ := http.NewRequest("POST", "https://api.mojang.com/profiles/minecraft", bytes.NewBuffer(requestBody))
+
+	request.Header.Set("Content-Type", "application/json")
+
+	response, err := HttpClient.Do(request)
+	if err != nil {
+		return nil, err
+	}
+	defer response.Body.Close()
+
+	if responseErr := validateResponse(response); responseErr != nil {
+		return nil, responseErr
+	}
+
+	var result []*ProfileInfo
+
+	body, _ := ioutil.ReadAll(response.Body)
+	_ = json.Unmarshal(body, &result)
+
+	return result, nil
+}
+
+// Obtains textures information for provided uuid
+// See https://wiki.vg/Mojang_API#UUID_-.3E_Profile_.2B_Skin.2FCape
+func UuidToTextures(uuid string, signed bool) (*SignedTexturesResponse, error) {
+	url := "https://sessionserver.mojang.com/session/minecraft/profile/" + uuid
+	if signed {
+		url += "?unsigned=false"
+	}
+
+	request, _ := http.NewRequest("GET", url, nil)
+
+	response, err := HttpClient.Do(request)
+	if err != nil {
+		return nil, err
+	}
+	defer response.Body.Close()
+
+	if responseErr := validateResponse(response); responseErr != nil {
+		return nil, responseErr
+	}
+
+	var result *SignedTexturesResponse
+
+	body, _ := ioutil.ReadAll(response.Body)
+	_ = json.Unmarshal(body, &result)
+
+	return result, nil
+}
+
+func validateResponse(response *http.Response) error {
+	switch {
+	case response.StatusCode == 204:
+		return &EmptyResponse{}
+	case response.StatusCode == 400:
+		type errorResponse struct {
+			Error   string `json:"error"`
+			Message string `json:"errorMessage"`
+		}
+
+		var decodedError *errorResponse
+		body, _ := ioutil.ReadAll(response.Body)
+		_ = json.Unmarshal(body, &decodedError)
+
+		return &BadRequestError{ErrorType: decodedError.Error, Message: decodedError.Message}
+	case response.StatusCode == 429:
+		return &TooManyRequestsError{}
+	case response.StatusCode >= 500:
+		return &ServerError{Status: response.StatusCode}
+	}
+
+	return nil
+}
+
+type ResponseError interface {
+	IsMojangError() bool
+}
+
+// Mojang API doesn't return a 404 Not Found error for non-existent data identifiers
+// Instead, they return 204 with an empty body
+type EmptyResponse struct {
+}
+
+func (*EmptyResponse) Error() string {
+	return "Empty Response"
+}
+
+func (*EmptyResponse) IsMojangError() bool {
+	return true
+}
+
+// When passed request params are invalid, Mojang returns 400 Bad Request error
+type BadRequestError struct {
+	ResponseError
+	ErrorType string
+	Message   string
+}
+
+func (e *BadRequestError) Error() string {
+	return e.Message
+}
+
+func (*BadRequestError) IsMojangError() bool {
+	return true
+}
+
+// When you exceed the set limit of requests, this error will be returned
+type TooManyRequestsError struct {
+	ResponseError
+}
+
+func (*TooManyRequestsError) Error() string {
+	return "Too Many Requests"
+}
+
+func (*TooManyRequestsError) IsMojangError() bool {
+	return true
+}
+
+// ServerError happens when Mojang's API returns any response with 50* status
+type ServerError struct {
+	ResponseError
+	Status int
+}
+
+func (e *ServerError) Error() string {
+	return "Server error"
+}
+
+func (*ServerError) IsMojangError() bool {
+	return true
+}
--- a/api/mojang/mojang_test.go
+++ b/api/mojang/mojang_test.go
@@ -0,0 +1,289 @@
+package mojang
+
+import (
+	"net/http"
+	"testing"
+
+	"github.com/h2non/gock"
+	testify "github.com/stretchr/testify/assert"
+)
+
+func TestSignedTexturesResponse(t *testing.T) {
+	t.Run("DecodeTextures", func(t *testing.T) {
+		obj := &SignedTexturesResponse{
+			Id:   "00000000000000000000000000000000",
+			Name: "mock",
+			Props: []*Property{
+				{
+					Name:  "textures",
+					Value: "eyJ0aW1lc3RhbXAiOjE1NTU4NTYzMDc0MTIsInByb2ZpbGVJZCI6IjNlM2VlNmMzNWFmYTQ4YWJiNjFlOGNkOGM0MmZjMGQ5IiwicHJvZmlsZU5hbWUiOiJFcmlja1NrcmF1Y2giLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZmMxNzU3NjMzN2ExMDZkOWMyMmFjNzgyZTM2MmMxNmM0ZTBlNDliZTUzZmFhNDE4NTdiZmYzMzJiNzc5MjgxZSJ9fX0=",
+				},
+			},
+		}
+		textures := obj.DecodeTextures()
+		testify.Equal(t, "3e3ee6c35afa48abb61e8cd8c42fc0d9", textures.ProfileID)
+	})
+
+	t.Run("DecodedTextures without textures prop", func(t *testing.T) {
+		obj := &SignedTexturesResponse{
+			Id:    "00000000000000000000000000000000",
+			Name:  "mock",
+			Props: []*Property{},
+		}
+		textures := obj.DecodeTextures()
+		testify.Nil(t, textures)
+	})
+}
+
+func TestUsernamesToUuids(t *testing.T) {
+	t.Run("exchange usernames to uuids", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://api.mojang.com").
+			Post("/profiles/minecraft").
+			JSON([]string{"Thinkofdeath", "maksimkurb"}).
+			Reply(200).
+			JSON([]map[string]interface{}{
+				{
+					"id":     "4566e69fc90748ee8d71d7ba5aa00d20",
+					"name":   "Thinkofdeath",
+					"legacy": false,
+					"demo":   true,
+				},
+				{
+					"id":   "0d252b7218b648bfb86c2ae476954d32",
+					"name": "maksimkurb",
+					// There is no legacy or demo fields
+				},
+			})
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UsernamesToUuids([]string{"Thinkofdeath", "maksimkurb"})
+		if assert.NoError(err) {
+			assert.Len(result, 2)
+			assert.Equal("4566e69fc90748ee8d71d7ba5aa00d20", result[0].Id)
+			assert.Equal("Thinkofdeath", result[0].Name)
+			assert.False(result[0].IsLegacy)
+			assert.True(result[0].IsDemo)
+
+			assert.Equal("0d252b7218b648bfb86c2ae476954d32", result[1].Id)
+			assert.Equal("maksimkurb", result[1].Name)
+			assert.False(result[1].IsLegacy)
+			assert.False(result[1].IsDemo)
+		}
+	})
+
+	t.Run("handle bad request response", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://api.mojang.com").
+			Post("/profiles/minecraft").
+			Reply(400).
+			JSON(map[string]interface{}{
+				"error":        "IllegalArgumentException",
+				"errorMessage": "profileName can not be null or empty.",
+			})
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UsernamesToUuids([]string{""})
+		assert.Nil(result)
+		assert.IsType(&BadRequestError{}, err)
+		assert.EqualError(err, "profileName can not be null or empty.")
+		assert.Implements((*ResponseError)(nil), err)
+	})
+
+	t.Run("handle too many requests response", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://api.mojang.com").
+			Post("/profiles/minecraft").
+			Reply(429).
+			JSON(map[string]interface{}{
+				"error":        "TooManyRequestsException",
+				"errorMessage": "The client has sent too many requests within a certain amount of time",
+			})
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UsernamesToUuids([]string{"Thinkofdeath", "maksimkurb"})
+		assert.Nil(result)
+		assert.IsType(&TooManyRequestsError{}, err)
+		assert.EqualError(err, "Too Many Requests")
+		assert.Implements((*ResponseError)(nil), err)
+	})
+
+	t.Run("handle server error", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://api.mojang.com").
+			Post("/profiles/minecraft").
+			Reply(500).
+			BodyString("500 Internal Server Error")
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UsernamesToUuids([]string{"Thinkofdeath", "maksimkurb"})
+		assert.Nil(result)
+		assert.IsType(&ServerError{}, err)
+		assert.EqualError(err, "Server error")
+		assert.Equal(500, err.(*ServerError).Status)
+		assert.Implements((*ResponseError)(nil), err)
+	})
+}
+
+func TestUuidToTextures(t *testing.T) {
+	t.Run("obtain not signed textures", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://sessionserver.mojang.com").
+			Get("/session/minecraft/profile/4566e69fc90748ee8d71d7ba5aa00d20").
+			Reply(200).
+			JSON(map[string]interface{}{
+				"id":   "4566e69fc90748ee8d71d7ba5aa00d20",
+				"name": "Thinkofdeath",
+				"properties": []interface{}{
+					map[string]interface{}{
+						"name":  "textures",
+						"value": "eyJ0aW1lc3RhbXAiOjE1NDMxMDczMDExODUsInByb2ZpbGVJZCI6IjQ1NjZlNjlmYzkwNzQ4ZWU4ZDcxZDdiYTVhYTAwZDIwIiwicHJvZmlsZU5hbWUiOiJUaGlua29mZGVhdGgiLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNzRkMWUwOGIwYmI3ZTlmNTkwYWYyNzc1ODEyNWJiZWQxNzc4YWM2Y2VmNzI5YWVkZmNiOTYxM2U5OTExYWU3NSJ9LCJDQVBFIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvYjBjYzA4ODQwNzAwNDQ3MzIyZDk1M2EwMmI5NjVmMWQ2NWExM2E2MDNiZjY0YjE3YzgwM2MyMTQ0NmZlMTYzNSJ9fX0=",
+					},
+				},
+			})
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UuidToTextures("4566e69fc90748ee8d71d7ba5aa00d20", false)
+		if assert.NoError(err) {
+			assert.Equal("4566e69fc90748ee8d71d7ba5aa00d20", result.Id)
+			assert.Equal("Thinkofdeath", result.Name)
+			assert.Equal(1, len(result.Props))
+			assert.Equal("textures", result.Props[0].Name)
+			assert.Equal(476, len(result.Props[0].Value))
+			assert.Equal("", result.Props[0].Signature)
+		}
+	})
+
+	t.Run("obtain signed textures", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://sessionserver.mojang.com").
+			Get("/session/minecraft/profile/4566e69fc90748ee8d71d7ba5aa00d20").
+			MatchParam("unsigned", "false").
+			Reply(200).
+			JSON(map[string]interface{}{
+				"id":   "4566e69fc90748ee8d71d7ba5aa00d20",
+				"name": "Thinkofdeath",
+				"properties": []interface{}{
+					map[string]interface{}{
+						"name":      "textures",
+						"signature": "signature string",
+						"value":     "eyJ0aW1lc3RhbXAiOjE1NDMxMDczMDExODUsInByb2ZpbGVJZCI6IjQ1NjZlNjlmYzkwNzQ4ZWU4ZDcxZDdiYTVhYTAwZDIwIiwicHJvZmlsZU5hbWUiOiJUaGlua29mZGVhdGgiLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNzRkMWUwOGIwYmI3ZTlmNTkwYWYyNzc1ODEyNWJiZWQxNzc4YWM2Y2VmNzI5YWVkZmNiOTYxM2U5OTExYWU3NSJ9LCJDQVBFIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvYjBjYzA4ODQwNzAwNDQ3MzIyZDk1M2EwMmI5NjVmMWQ2NWExM2E2MDNiZjY0YjE3YzgwM2MyMTQ0NmZlMTYzNSJ9fX0=",
+					},
+				},
+			})
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UuidToTextures("4566e69fc90748ee8d71d7ba5aa00d20", true)
+		if assert.NoError(err) {
+			assert.Equal("4566e69fc90748ee8d71d7ba5aa00d20", result.Id)
+			assert.Equal("Thinkofdeath", result.Name)
+			assert.Equal(1, len(result.Props))
+			assert.Equal("textures", result.Props[0].Name)
+			assert.Equal(476, len(result.Props[0].Value))
+			assert.Equal("signature string", result.Props[0].Signature)
+		}
+	})
+
+	t.Run("handle empty response", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://sessionserver.mojang.com").
+			Get("/session/minecraft/profile/4566e69fc90748ee8d71d7ba5aa00d20").
+			Reply(204).
+			BodyString("")
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UuidToTextures("4566e69fc90748ee8d71d7ba5aa00d20", false)
+		assert.Nil(result)
+		assert.IsType(&EmptyResponse{}, err)
+		assert.EqualError(err, "Empty Response")
+		assert.Implements((*ResponseError)(nil), err)
+	})
+
+	t.Run("handle too many requests response", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://sessionserver.mojang.com").
+			Get("/session/minecraft/profile/4566e69fc90748ee8d71d7ba5aa00d20").
+			Reply(429).
+			JSON(map[string]interface{}{
+				"error":        "TooManyRequestsException",
+				"errorMessage": "The client has sent too many requests within a certain amount of time",
+			})
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UuidToTextures("4566e69fc90748ee8d71d7ba5aa00d20", false)
+		assert.Nil(result)
+		assert.IsType(&TooManyRequestsError{}, err)
+		assert.EqualError(err, "Too Many Requests")
+		assert.Implements((*ResponseError)(nil), err)
+	})
+
+	t.Run("handle server error", func(t *testing.T) {
+		assert := testify.New(t)
+
+		defer gock.Off()
+		gock.New("https://sessionserver.mojang.com").
+			Get("/session/minecraft/profile/4566e69fc90748ee8d71d7ba5aa00d20").
+			Reply(500).
+			BodyString("500 Internal Server Error")
+
+		client := &http.Client{}
+		gock.InterceptClient(client)
+
+		HttpClient = client
+
+		result, err := UuidToTextures("4566e69fc90748ee8d71d7ba5aa00d20", false)
+		assert.Nil(result)
+		assert.IsType(&ServerError{}, err)
+		assert.EqualError(err, "Server error")
+		assert.Equal(500, err.(*ServerError).Status)
+		assert.Implements((*ResponseError)(nil), err)
+	})
+}
--- a/api/mojang/queue/broadcast.go
+++ b/api/mojang/queue/broadcast.go
@@ -0,0 +1,53 @@
+package queue
+
+import (
+	"sync"
+
+	"github.com/elyby/chrly/api/mojang"
+)
+
+type broadcastMap struct {
+	lock      sync.Mutex
+	listeners map[string][]chan *mojang.SignedTexturesResponse
+}
+
+func newBroadcaster() *broadcastMap {
+	return &broadcastMap{
+		listeners: make(map[string][]chan *mojang.SignedTexturesResponse),
+	}
+}
+
+// Returns a boolean value, which will be true if the username passed didn't exist before
+func (c *broadcastMap) AddListener(username string, resultChan chan *mojang.SignedTexturesResponse) bool {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	val, alreadyHasSource := c.listeners[username]
+	if alreadyHasSource {
+		c.listeners[username] = append(val, resultChan)
+		return false
+	}
+
+	c.listeners[username] = []chan *mojang.SignedTexturesResponse{resultChan}
+
+	return true
+}
+
+func (c *broadcastMap) BroadcastAndRemove(username string, result *mojang.SignedTexturesResponse) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	val, ok := c.listeners[username]
+	if !ok {
+		return
+	}
+
+	for _, channel := range val {
+		go func(channel chan *mojang.SignedTexturesResponse) {
+			channel <- result
+			close(channel)
+		}(channel)
+	}
+
+	delete(c.listeners, username)
+}
--- a/api/mojang/queue/broadcast_test.go
+++ b/api/mojang/queue/broadcast_test.go
@@ -0,0 +1,75 @@
+package queue
+
+import (
+	"github.com/elyby/chrly/api/mojang"
+
+	testify "github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestBroadcastMap_GetOrAppend(t *testing.T) {
+	t.Run("first call when username didn't exist before should return true", func(t *testing.T) {
+		assert := testify.New(t)
+
+		broadcaster := newBroadcaster()
+		channel := make(chan *mojang.SignedTexturesResponse)
+		isFirstListener := broadcaster.AddListener("mock", channel)
+
+		assert.True(isFirstListener)
+		listeners, ok := broadcaster.listeners["mock"]
+		assert.True(ok)
+		assert.Len(listeners, 1)
+		assert.Equal(channel, listeners[0])
+	})
+
+	t.Run("subsequent calls should return false", func(t *testing.T) {
+		assert := testify.New(t)
+
+		broadcaster := newBroadcaster()
+		channel1 := make(chan *mojang.SignedTexturesResponse)
+		isFirstListener := broadcaster.AddListener("mock", channel1)
+
+		assert.True(isFirstListener)
+
+		channel2 := make(chan *mojang.SignedTexturesResponse)
+		isFirstListener = broadcaster.AddListener("mock", channel2)
+
+		assert.False(isFirstListener)
+
+		channel3 := make(chan *mojang.SignedTexturesResponse)
+		isFirstListener = broadcaster.AddListener("mock", channel3)
+
+		assert.False(isFirstListener)
+	})
+}
+
+func TestBroadcastMap_BroadcastAndRemove(t *testing.T) {
+	t.Run("should broadcast to all listeners and remove the key", func(t *testing.T) {
+		assert := testify.New(t)
+
+		broadcaster := newBroadcaster()
+		channel1 := make(chan *mojang.SignedTexturesResponse)
+		channel2 := make(chan *mojang.SignedTexturesResponse)
+		broadcaster.AddListener("mock", channel1)
+		broadcaster.AddListener("mock", channel2)
+
+		result := &mojang.SignedTexturesResponse{Id: "mockUuid"}
+		broadcaster.BroadcastAndRemove("mock", result)
+
+		assert.Equal(result, <-channel1)
+		assert.Equal(result, <-channel2)
+
+		channel3 := make(chan *mojang.SignedTexturesResponse)
+		isFirstListener := broadcaster.AddListener("mock", channel3)
+		assert.True(isFirstListener)
+	})
+
+	t.Run("call on not exists username", func(t *testing.T) {
+		assert := testify.New(t)
+
+		assert.NotPanics(func() {
+			broadcaster := newBroadcaster()
+			broadcaster.BroadcastAndRemove("mock", &mojang.SignedTexturesResponse{})
+		})
+	})
+}
--- a/api/mojang/queue/in_memory_textures_storage.go
+++ b/api/mojang/queue/in_memory_textures_storage.go
@@ -0,0 +1,112 @@
+package queue
+
+import (
+	"sync"
+	"time"
+
+	"github.com/elyby/chrly/api/mojang"
+
+	"github.com/tevino/abool"
+)
+
+var inMemoryStorageGCPeriod = 10 * time.Second
+var inMemoryStoragePersistPeriod = time.Minute + 10*time.Second
+var now = time.Now
+
+type inMemoryItem struct {
+	textures  *mojang.SignedTexturesResponse
+	timestamp int64
+}
+
+type inMemoryTexturesStorage struct {
+	lock    sync.Mutex
+	data    map[string]*inMemoryItem
+	working *abool.AtomicBool
+}
+
+func CreateInMemoryTexturesStorage() *inMemoryTexturesStorage {
+	storage := &inMemoryTexturesStorage{
+		data: make(map[string]*inMemoryItem),
+	}
+
+	return storage
+}
+
+func (s *inMemoryTexturesStorage) Start() {
+	if s.working == nil {
+		s.working = abool.New()
+	}
+
+	if !s.working.IsSet() {
+		go func() {
+			time.Sleep(inMemoryStorageGCPeriod)
+			// TODO: this can be reimplemented in future with channels, but right now I have no idea how to make it right
+			for s.working.IsSet() {
+				start := time.Now()
+				s.gc()
+				time.Sleep(inMemoryStorageGCPeriod - time.Since(start))
+			}
+		}()
+	}
+
+	s.working.Set()
+}
+
+func (s *inMemoryTexturesStorage) Stop() {
+	s.working.UnSet()
+}
+
+func (s *inMemoryTexturesStorage) GetTextures(uuid string) (*mojang.SignedTexturesResponse, error) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	item, exists := s.data[uuid]
+	validRange := getMinimalNotExpiredTimestamp()
+	if !exists || validRange > item.timestamp {
+		return nil, &ValueNotFound{}
+	}
+
+	return item.textures, nil
+}
+
+func (s *inMemoryTexturesStorage) StoreTextures(uuid string, textures *mojang.SignedTexturesResponse) {
+	var timestamp int64
+	if textures != nil {
+		decoded := textures.DecodeTextures()
+		if decoded == nil {
+			panic("unable to decode textures")
+		}
+
+		timestamp = decoded.Timestamp
+	} else {
+		timestamp = unixNanoToUnixMicro(now().UnixNano())
+	}
+
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[uuid] = &inMemoryItem{
+		textures:  textures,
+		timestamp: timestamp,
+	}
+}
+
+func (s *inMemoryTexturesStorage) gc() {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	maxTime := getMinimalNotExpiredTimestamp()
+	for uuid, value := range s.data {
+		if maxTime > value.timestamp {
+			delete(s.data, uuid)
+		}
+	}
+}
+
+func getMinimalNotExpiredTimestamp() int64 {
+	return unixNanoToUnixMicro(now().Add(inMemoryStoragePersistPeriod * time.Duration(-1)).UnixNano())
+}
+
+func unixNanoToUnixMicro(unixNano int64) int64 {
+	return unixNano / 10e5
+}
--- a/api/mojang/queue/in_memory_textures_storage_test.go
+++ b/api/mojang/queue/in_memory_textures_storage_test.go
@@ -0,0 +1,200 @@
+package queue
+
+import (
+	"time"
+
+	"github.com/elyby/chrly/api/mojang"
+
+	testify "github.com/stretchr/testify/assert"
+	"testing"
+)
+
+var texturesWithSkin = &mojang.SignedTexturesResponse{
+	Id:   "dead24f9a4fa4877b7b04c8c6c72bb46",
+	Name: "mock",
+	Props: []*mojang.Property{
+		{
+			Name: "textures",
+			Value: mojang.EncodeTextures(&mojang.TexturesProp{
+				Timestamp:   time.Now().UnixNano() / 10e5,
+				ProfileID:   "dead24f9a4fa4877b7b04c8c6c72bb46",
+				ProfileName: "mock",
+				Textures: &mojang.TexturesResponse{
+					Skin: &mojang.SkinTexturesResponse{
+						Url: "http://textures.minecraft.net/texture/74d1e08b0bb7e9f590af27758125bbed1778ac6cef729aedfcb9613e9911ae75",
+					},
+				},
+			}),
+		},
+	},
+}
+var texturesWithoutSkin = &mojang.SignedTexturesResponse{
+	Id:   "dead24f9a4fa4877b7b04c8c6c72bb46",
+	Name: "mock",
+	Props: []*mojang.Property{
+		{
+			Name: "textures",
+			Value: mojang.EncodeTextures(&mojang.TexturesProp{
+				Timestamp:   time.Now().UnixNano() / 10e5,
+				ProfileID:   "dead24f9a4fa4877b7b04c8c6c72bb46",
+				ProfileName: "mock",
+				Textures:    &mojang.TexturesResponse{},
+			}),
+		},
+	},
+}
+
+func TestInMemoryTexturesStorage_GetTextures(t *testing.T) {
+	t.Run("get error when uuid is not exists", func(t *testing.T) {
+		assert := testify.New(t)
+
+		storage := CreateInMemoryTexturesStorage()
+		result, err := storage.GetTextures("b5d58475007d4f9e9ddd1403e2497579")
+
+		assert.Nil(result)
+		assert.Error(err, "value not found in the storage")
+	})
+
+	t.Run("get textures object, when uuid is stored in the storage", func(t *testing.T) {
+		assert := testify.New(t)
+
+		storage := CreateInMemoryTexturesStorage()
+		storage.StoreTextures("dead24f9a4fa4877b7b04c8c6c72bb46", texturesWithSkin)
+		result, err := storage.GetTextures("dead24f9a4fa4877b7b04c8c6c72bb46")
+
+		assert.Equal(texturesWithSkin, result)
+		assert.Nil(err)
+	})
+
+	t.Run("get error when uuid is exists, but textures are expired", func(t *testing.T) {
+		assert := testify.New(t)
+
+		storage := CreateInMemoryTexturesStorage()
+		storage.StoreTextures("dead24f9a4fa4877b7b04c8c6c72bb46", texturesWithSkin)
+
+		now = func() time.Time {
+			return time.Now().Add(time.Minute * 2)
+		}
+
+		result, err := storage.GetTextures("dead24f9a4fa4877b7b04c8c6c72bb46")
+
+		assert.Nil(result)
+		assert.Error(err, "value not found in the storage")
+
+		now = time.Now
+	})
+}
+
+func TestInMemoryTexturesStorage_StoreTextures(t *testing.T) {
+	t.Run("store textures for previously not existed uuid", func(t *testing.T) {
+		assert := testify.New(t)
+
+		storage := CreateInMemoryTexturesStorage()
+		storage.StoreTextures("dead24f9a4fa4877b7b04c8c6c72bb46", texturesWithSkin)
+		result, err := storage.GetTextures("dead24f9a4fa4877b7b04c8c6c72bb46")
+
+		assert.Equal(texturesWithSkin, result)
+		assert.Nil(err)
+	})
+
+	t.Run("override already existed textures for uuid", func(t *testing.T) {
+		assert := testify.New(t)
+
+		storage := CreateInMemoryTexturesStorage()
+		storage.StoreTextures("dead24f9a4fa4877b7b04c8c6c72bb46", texturesWithoutSkin)
+		storage.StoreTextures("dead24f9a4fa4877b7b04c8c6c72bb46", texturesWithSkin)
+		result, err := storage.GetTextures("dead24f9a4fa4877b7b04c8c6c72bb46")
+
+		assert.NotEqual(texturesWithoutSkin, result)
+		assert.Equal(texturesWithSkin, result)
+		assert.Nil(err)
+	})
+
+	t.Run("store nil textures", func(t *testing.T) {
+		assert := testify.New(t)
+
+		storage := CreateInMemoryTexturesStorage()
+		storage.StoreTextures("dead24f9a4fa4877b7b04c8c6c72bb46", nil)
+		result, err := storage.GetTextures("dead24f9a4fa4877b7b04c8c6c72bb46")
+
+		assert.Nil(result)
+		assert.Nil(err)
+	})
+
+	t.Run("should panic if textures prop is not decoded", func(t *testing.T) {
+		assert := testify.New(t)
+
+		toStore := &mojang.SignedTexturesResponse{
+			Id:    "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
+			Name:  "mock",
+			Props: []*mojang.Property{},
+		}
+
+		assert.PanicsWithValue("unable to decode textures", func() {
+			storage := CreateInMemoryTexturesStorage()
+			storage.StoreTextures("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", toStore)
+		})
+	})
+}
+
+func TestInMemoryTexturesStorage_GarbageCollection(t *testing.T) {
+	assert := testify.New(t)
+
+	inMemoryStorageGCPeriod = 10 * time.Millisecond
+	inMemoryStoragePersistPeriod = 10 * time.Millisecond
+
+	textures1 := &mojang.SignedTexturesResponse{
+		Id:   "dead24f9a4fa4877b7b04c8c6c72bb46",
+		Name: "mock1",
+		Props: []*mojang.Property{
+			{
+				Name: "textures",
+				Value: mojang.EncodeTextures(&mojang.TexturesProp{
+					Timestamp:   time.Now().Add(inMemoryStorageGCPeriod-time.Millisecond*time.Duration(5)).UnixNano() / 10e5,
+					ProfileID:   "dead24f9a4fa4877b7b04c8c6c72bb46",
+					ProfileName: "mock1",
+					Textures:    &mojang.TexturesResponse{},
+				}),
+			},
+		},
+	}
+	textures2 := &mojang.SignedTexturesResponse{
+		Id:   "b5d58475007d4f9e9ddd1403e2497579",
+		Name: "mock2",
+		Props: []*mojang.Property{
+			{
+				Name: "textures",
+				Value: mojang.EncodeTextures(&mojang.TexturesProp{
+					Timestamp:   time.Now().Add(inMemoryStorageGCPeriod-time.Millisecond*time.Duration(15)).UnixNano() / 10e5,
+					ProfileID:   "b5d58475007d4f9e9ddd1403e2497579",
+					ProfileName: "mock2",
+					Textures:    &mojang.TexturesResponse{},
+				}),
+			},
+		},
+	}
+
+	storage := CreateInMemoryTexturesStorage()
+	storage.StoreTextures("dead24f9a4fa4877b7b04c8c6c72bb46", textures1)
+	storage.StoreTextures("b5d58475007d4f9e9ddd1403e2497579", textures2)
+
+	storage.Start()
+
+	time.Sleep(inMemoryStorageGCPeriod + time.Millisecond) // Let it start first iteration
+
+	_, textures1Err := storage.GetTextures("dead24f9a4fa4877b7b04c8c6c72bb46")
+	_, textures2Err := storage.GetTextures("b5d58475007d4f9e9ddd1403e2497579")
+
+	assert.Nil(textures1Err)
+	assert.Error(textures2Err)
+
+	time.Sleep(inMemoryStorageGCPeriod + time.Millisecond) // Let another iteration happen
+
+	_, textures1Err = storage.GetTextures("dead24f9a4fa4877b7b04c8c6c72bb46")
+	_, textures2Err = storage.GetTextures("b5d58475007d4f9e9ddd1403e2497579")
+
+	assert.Error(textures1Err)
+	assert.Error(textures2Err)
+
+	storage.Stop()
+}
--- a/api/mojang/queue/jobs_structure.go
+++ b/api/mojang/queue/jobs_structure.go
@@ -0,0 +1,56 @@
+// Based on the implementation from https://flaviocopes.com/golang-data-structure-queue/
+
+package queue
+
+import (
+	"sync"
+
+	"github.com/elyby/chrly/api/mojang"
+)
+
+type jobItem struct {
+	Username  string
+	RespondTo chan *mojang.SignedTexturesResponse
+}
+
+type jobsQueue struct {
+	lock  sync.Mutex
+	items []*jobItem
+}
+
+func (s *jobsQueue) New() *jobsQueue {
+	s.items = []*jobItem{}
+	return s
+}
+
+func (s *jobsQueue) Enqueue(t *jobItem) {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.items = append(s.items, t)
+}
+
+func (s *jobsQueue) Dequeue(n int) []*jobItem {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	if n > s.Size() {
+		n = s.Size()
+	}
+
+	items := s.items[0:n]
+	s.items = s.items[n:len(s.items)]
+
+	return items
+}
+
+func (s *jobsQueue) IsEmpty() bool {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	return len(s.items) == 0
+}
+
+func (s *jobsQueue) Size() int {
+	return len(s.items)
+}
--- a/api/mojang/queue/jobs_structure_test.go
+++ b/api/mojang/queue/jobs_structure_test.go
@@ -0,0 +1,47 @@
+package queue
+
+import (
+	"testing"
+
+	testify "github.com/stretchr/testify/assert"
+)
+
+func TestEnqueue(t *testing.T) {
+	assert := testify.New(t)
+
+	s := createQueue()
+	s.Enqueue(&jobItem{Username: "username1"})
+	s.Enqueue(&jobItem{Username: "username2"})
+	s.Enqueue(&jobItem{Username: "username3"})
+
+	assert.Equal(3, s.Size())
+}
+
+func TestDequeueN(t *testing.T) {
+	assert := testify.New(t)
+
+	s := createQueue()
+	s.Enqueue(&jobItem{Username: "username1"})
+	s.Enqueue(&jobItem{Username: "username2"})
+	s.Enqueue(&jobItem{Username: "username3"})
+	s.Enqueue(&jobItem{Username: "username4"})
+
+	items := s.Dequeue(2)
+	assert.Len(items, 2)
+	assert.Equal("username1", items[0].Username)
+	assert.Equal("username2", items[1].Username)
+	assert.Equal(2, s.Size())
+
+	items = s.Dequeue(40)
+	assert.Len(items, 2)
+	assert.Equal("username3", items[0].Username)
+	assert.Equal("username4", items[1].Username)
+	assert.True(s.IsEmpty())
+}
+
+func createQueue() *jobsQueue {
+	queue := &jobsQueue{}
+	queue.New()
+
+	return queue
+}
--- a/api/mojang/queue/queue.go
+++ b/api/mojang/queue/queue.go
@@ -0,0 +1,215 @@
+package queue
+
+import (
+	"net"
+	"net/url"
+	"regexp"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+
+	"github.com/mono83/slf/wd"
+
+	"github.com/elyby/chrly/api/mojang"
+)
+
+var usernamesToUuids = mojang.UsernamesToUuids
+var uuidToTextures = mojang.UuidToTextures
+var uuidsQueueIterationDelay = time.Second
+var forever = func() bool {
+	return true
+}
+
+// https://help.mojang.com/customer/portal/articles/928638
+var allowedUsernamesRegex = regexp.MustCompile(`^[\w_]{3,16}$`)
+
+type JobsQueue struct {
+	Storage Storage
+	Logger  wd.Watchdog
+
+	onFirstCall sync.Once
+	queue       jobsQueue
+	broadcast   *broadcastMap
+}
+
+func (ctx *JobsQueue) GetTexturesForUsername(username string) chan *mojang.SignedTexturesResponse {
+	// TODO: convert username to lower case
+	ctx.onFirstCall.Do(func() {
+		ctx.queue.New()
+		ctx.broadcast = newBroadcaster()
+		ctx.startQueue()
+	})
+
+	responseChan := make(chan *mojang.SignedTexturesResponse)
+	if !allowedUsernamesRegex.MatchString(username) {
+		ctx.Logger.IncCounter("mojang_textures.invalid_username", 1)
+		go func() {
+			responseChan <- nil
+			close(responseChan)
+		}()
+
+		return responseChan
+	}
+
+	ctx.Logger.IncCounter("mojang_textures.request", 1)
+
+	uuid, err := ctx.Storage.GetUuid(username)
+	if err == nil && uuid == "" {
+		ctx.Logger.IncCounter("mojang_textures.usernames.cache_hit_nil", 1)
+
+		go func() {
+			responseChan <- nil
+			close(responseChan)
+		}()
+
+		return responseChan
+	}
+
+	isFirstListener := ctx.broadcast.AddListener(username, responseChan)
+	if isFirstListener {
+		start := time.Now()
+		// TODO: respond nil if processing takes more than 5 seconds
+
+		resultChan := make(chan *mojang.SignedTexturesResponse)
+		if uuid == "" {
+			ctx.Logger.IncCounter("mojang_textures.usernames.queued", 1)
+			ctx.queue.Enqueue(&jobItem{username, resultChan})
+		} else {
+			ctx.Logger.IncCounter("mojang_textures.usernames.cache_hit", 1)
+			go func() {
+				resultChan <- ctx.getTextures(uuid)
+			}()
+		}
+
+		go func() {
+			result := <-resultChan
+			close(resultChan)
+			ctx.broadcast.BroadcastAndRemove(username, result)
+			ctx.Logger.RecordTimer("mojang_textures.result_time", time.Since(start))
+		}()
+	} else {
+		ctx.Logger.IncCounter("mojang_textures.already_in_queue", 1)
+	}
+
+	return responseChan
+}
+
+func (ctx *JobsQueue) startQueue() {
+	go func() {
+		time.Sleep(uuidsQueueIterationDelay)
+		for forever() {
+			start := time.Now()
+			ctx.queueRound()
+			elapsed := time.Since(start)
+			ctx.Logger.RecordTimer("mojang_textures.usernames.round_time", elapsed)
+			time.Sleep(uuidsQueueIterationDelay)
+		}
+	}()
+}
+
+func (ctx *JobsQueue) queueRound() {
+	if ctx.queue.IsEmpty() {
+		return
+	}
+
+	queueSize := ctx.queue.Size()
+	jobs := ctx.queue.Dequeue(10)
+	ctx.Logger.UpdateGauge("mojang_textures.usernames.iteration_size", int64(len(jobs)))
+	ctx.Logger.UpdateGauge("mojang_textures.usernames.queue_size", int64(queueSize-len(jobs)))
+	var usernames []string
+	for _, job := range jobs {
+		usernames = append(usernames, job.Username)
+	}
+
+	profiles, err := usernamesToUuids(usernames)
+	if err != nil {
+		ctx.handleResponseError(err, "usernames")
+		for _, job := range jobs {
+			job.RespondTo <- nil
+		}
+
+		return
+	}
+
+	for _, job := range jobs {
+		go func(job *jobItem) {
+			var uuid string
+			// The profiles in the response are not ordered, so we must search each username over full array
+			for _, profile := range profiles {
+				if strings.EqualFold(job.Username, profile.Name) {
+					uuid = profile.Id
+					break
+				}
+			}
+
+			_ = ctx.Storage.StoreUuid(job.Username, uuid)
+			if uuid == "" {
+				job.RespondTo <- nil
+				ctx.Logger.IncCounter("mojang_textures.usernames.uuid_miss", 1)
+			} else {
+				job.RespondTo <- ctx.getTextures(uuid)
+				ctx.Logger.IncCounter("mojang_textures.usernames.uuid_hit", 1)
+			}
+		}(job)
+	}
+}
+
+func (ctx *JobsQueue) getTextures(uuid string) *mojang.SignedTexturesResponse {
+	existsTextures, err := ctx.Storage.GetTextures(uuid)
+	if err == nil {
+		ctx.Logger.IncCounter("mojang_textures.textures.cache_hit", 1)
+		return existsTextures
+	}
+
+	ctx.Logger.IncCounter("mojang_textures.textures.request", 1)
+
+	start := time.Now()
+	result, err := uuidToTextures(uuid, true)
+	ctx.Logger.RecordTimer("mojang_textures.textures.request_time", time.Since(start))
+	if err != nil {
+		ctx.handleResponseError(err, "textures")
+	}
+
+	// Mojang can respond with an error, but count it as a hit, so store result even if the textures is nil
+	ctx.Storage.StoreTextures(uuid, result)
+
+	return result
+}
+
+func (ctx *JobsQueue) handleResponseError(err error, threadName string) {
+	ctx.Logger.Debug(":name: Got response error :err", wd.NameParam(threadName), wd.ErrParam(err))
+
+	switch err.(type) {
+	case mojang.ResponseError:
+		if _, ok := err.(*mojang.TooManyRequestsError); ok {
+			ctx.Logger.Warning(":name: Got 429 Too Many Requests :err", wd.NameParam(threadName), wd.ErrParam(err))
+			return
+		}
+
+		if _, ok := err.(*mojang.BadRequestError); ok {
+			ctx.Logger.Warning(":name: Got 400 Bad Request :err", wd.NameParam(threadName), wd.ErrParam(err))
+			return
+		}
+
+		return
+	case net.Error:
+		if err.(net.Error).Timeout() {
+			return
+		}
+
+		if _, ok := err.(*url.Error); ok {
+			return
+		}
+
+		if opErr, ok := err.(*net.OpError); ok && (opErr.Op == "dial" || opErr.Op == "read") {
+			return
+		}
+
+		if err == syscall.ECONNREFUSED {
+			return
+		}
+	}
+
+	ctx.Logger.Emergency(":name: Unknown Mojang response error: :err", wd.NameParam(threadName), wd.ErrParam(err))
+}
--- a/api/mojang/queue/queue_test.go
+++ b/api/mojang/queue/queue_test.go
@@ -0,0 +1,522 @@
+package queue
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"errors"
+	"net"
+	"net/url"
+	"strings"
+	"syscall"
+	"time"
+
+	"github.com/elyby/chrly/api/mojang"
+
+	"testing"
+
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/suite"
+
+	mocks "github.com/elyby/chrly/tests"
+)
+
+type mojangApiMocks struct {
+	mock.Mock
+}
+
+func (o *mojangApiMocks) UsernamesToUuids(usernames []string) ([]*mojang.ProfileInfo, error) {
+	args := o.Called(usernames)
+	var result []*mojang.ProfileInfo
+	if casted, ok := args.Get(0).([]*mojang.ProfileInfo); ok {
+		result = casted
+	}
+
+	return result, args.Error(1)
+}
+
+func (o *mojangApiMocks) UuidToTextures(uuid string, signed bool) (*mojang.SignedTexturesResponse, error) {
+	args := o.Called(uuid, signed)
+	var result *mojang.SignedTexturesResponse
+	if casted, ok := args.Get(0).(*mojang.SignedTexturesResponse); ok {
+		result = casted
+	}
+
+	return result, args.Error(1)
+}
+
+type mockStorage struct {
+	mock.Mock
+}
+
+func (m *mockStorage) GetUuid(username string) (string, error) {
+	args := m.Called(username)
+	return args.String(0), args.Error(1)
+}
+
+func (m *mockStorage) StoreUuid(username string, uuid string) error {
+	args := m.Called(username, uuid)
+	return args.Error(0)
+}
+
+func (m *mockStorage) GetTextures(uuid string) (*mojang.SignedTexturesResponse, error) {
+	args := m.Called(uuid)
+	var result *mojang.SignedTexturesResponse
+	if casted, ok := args.Get(0).(*mojang.SignedTexturesResponse); ok {
+		result = casted
+	}
+
+	return result, args.Error(1)
+}
+
+func (m *mockStorage) StoreTextures(uuid string, textures *mojang.SignedTexturesResponse) {
+	m.Called(uuid, textures)
+}
+
+type queueTestSuite struct {
+	suite.Suite
+	Queue     *JobsQueue
+	Storage   *mockStorage
+	MojangApi *mojangApiMocks
+	Logger    *mocks.WdMock
+	Iterate   func()
+
+	iterateChan chan bool
+	done        func()
+}
+
+func (suite *queueTestSuite) SetupSuite() {
+	uuidsQueueIterationDelay = 0
+}
+
+func (suite *queueTestSuite) SetupTest() {
+	suite.Storage = &mockStorage{}
+	suite.Logger = &mocks.WdMock{}
+
+	suite.Queue = &JobsQueue{Storage: suite.Storage, Logger: suite.Logger}
+
+	suite.iterateChan = make(chan bool)
+	forever = func() bool {
+		return <-suite.iterateChan
+	}
+
+	suite.Iterate = func() {
+		suite.iterateChan <- true
+	}
+
+	suite.done = func() {
+		suite.iterateChan <- false
+	}
+
+	suite.MojangApi = new(mojangApiMocks)
+	usernamesToUuids = suite.MojangApi.UsernamesToUuids
+	uuidToTextures = suite.MojangApi.UuidToTextures
+}
+
+func (suite *queueTestSuite) TearDownTest() {
+	suite.done()
+	time.Sleep(10 * time.Millisecond) // Add delay to let finish all goroutines before assert mocks calls
+	suite.MojangApi.AssertExpectations(suite.T())
+	suite.Storage.AssertExpectations(suite.T())
+	suite.Logger.AssertExpectations(suite.T())
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForOneUsernameWithoutAnyCache() {
+	expectedResult := &mojang.SignedTexturesResponse{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"}
+
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.queued", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.iteration_size", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.queue_size", int64(0)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.usernames.round_time", mock.Anything)
+	suite.Logger.On("IncCounter", "mojang_textures.textures.request", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.textures.request_time", mock.Anything).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.uuid_hit", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Once().Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", "maksimkurb", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil)
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil, &ValueNotFound{})
+	suite.Storage.On("StoreTextures", "0d252b7218b648bfb86c2ae476954d32", expectedResult).Once()
+
+	suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return([]*mojang.ProfileInfo{
+		{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"},
+	}, nil)
+	suite.MojangApi.On("UuidToTextures", "0d252b7218b648bfb86c2ae476954d32", true).Once().Return(expectedResult, nil)
+
+	resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	suite.Iterate()
+
+	result := <-resultChan
+	suite.Assert().Equal(expectedResult, result)
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForFewUsernamesWithoutAnyCache() {
+	expectedResult1 := &mojang.SignedTexturesResponse{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"}
+	expectedResult2 := &mojang.SignedTexturesResponse{Id: "4566e69fc90748ee8d71d7ba5aa00d20", Name: "Thinkofdeath"}
+
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Twice()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.queued", int64(1)).Twice()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.iteration_size", int64(2)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.queue_size", int64(0)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.usernames.round_time", mock.Anything)
+	suite.Logger.On("IncCounter", "mojang_textures.textures.request", int64(1)).Twice()
+	suite.Logger.On("RecordTimer", "mojang_textures.textures.request_time", mock.Anything).Twice()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.uuid_hit", int64(1)).Twice()
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Twice()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Once().Return("", &ValueNotFound{})
+	suite.Storage.On("GetUuid", "Thinkofdeath").Once().Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", "maksimkurb", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil)
+	suite.Storage.On("StoreUuid", "Thinkofdeath", "4566e69fc90748ee8d71d7ba5aa00d20").Once().Return(nil)
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil, &ValueNotFound{})
+	suite.Storage.On("GetTextures", "4566e69fc90748ee8d71d7ba5aa00d20").Once().Return(nil, &ValueNotFound{})
+	suite.Storage.On("StoreTextures", "0d252b7218b648bfb86c2ae476954d32", expectedResult1).Once()
+	suite.Storage.On("StoreTextures", "4566e69fc90748ee8d71d7ba5aa00d20", expectedResult2).Once()
+
+	suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb", "Thinkofdeath"}).Once().Return([]*mojang.ProfileInfo{
+		{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"},
+		{Id: "4566e69fc90748ee8d71d7ba5aa00d20", Name: "Thinkofdeath"},
+	}, nil)
+	suite.MojangApi.On("UuidToTextures", "0d252b7218b648bfb86c2ae476954d32", true).Once().Return(expectedResult1, nil)
+	suite.MojangApi.On("UuidToTextures", "4566e69fc90748ee8d71d7ba5aa00d20", true).Once().Return(expectedResult2, nil)
+
+	resultChan1 := suite.Queue.GetTexturesForUsername("maksimkurb")
+	resultChan2 := suite.Queue.GetTexturesForUsername("Thinkofdeath")
+
+	suite.Iterate()
+
+	suite.Assert().Equal(expectedResult1, <-resultChan1)
+	suite.Assert().Equal(expectedResult2, <-resultChan2)
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForUsernameWithCachedUuid() {
+	expectedResult := &mojang.SignedTexturesResponse{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"}
+
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.cache_hit", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.textures.request", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.textures.request_time", mock.Anything).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Once().Return("0d252b7218b648bfb86c2ae476954d32", nil)
+	// Storage.StoreUuid shouldn't be called
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil, &ValueNotFound{})
+	suite.Storage.On("StoreTextures", "0d252b7218b648bfb86c2ae476954d32", expectedResult).Once()
+
+	// MojangApi.UsernamesToUuids shouldn't be called
+	suite.MojangApi.On("UuidToTextures", "0d252b7218b648bfb86c2ae476954d32", true).Once().Return(expectedResult, nil)
+
+	resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	// Note that there is no iteration
+
+	result := <-resultChan
+	suite.Assert().Equal(expectedResult, result)
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForUsernameWithFullyCachedResult() {
+	expectedResult := &mojang.SignedTexturesResponse{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"}
+
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.cache_hit", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.textures.cache_hit", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Once().Return("0d252b7218b648bfb86c2ae476954d32", nil)
+	// Storage.StoreUuid shouldn't be called
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Once().Return(expectedResult, nil)
+	// Storage.StoreTextures shouldn't be called
+
+	// MojangApi.UsernamesToUuids shouldn't be called
+	// MojangApi.UuidToTextures shouldn't be called
+
+	resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	// Note that there is no iteration
+
+	result := <-resultChan
+	suite.Assert().Equal(expectedResult, result)
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForUsernameWithCachedUnknownUuid() {
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.cache_hit_nil", int64(1)).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Once().Return("", nil)
+	// Storage.StoreUuid shouldn't be called
+	// Storage.GetTextures shouldn't be called
+	// Storage.StoreTextures shouldn't be called
+
+	// MojangApi.UsernamesToUuids shouldn't be called
+	// MojangApi.UuidToTextures shouldn't be called
+
+	resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	// Note that there is no iteration
+
+	suite.Assert().Nil(<-resultChan)
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForMoreThan10Usernames() {
+	usernames := make([]string, 12)
+	for i := 0; i < cap(usernames); i++ {
+		usernames[i] = randStr(8)
+	}
+
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Times(12)
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.queued", int64(1)).Times(12)
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.iteration_size", int64(10)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.iteration_size", int64(2)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.queue_size", int64(2)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.queue_size", int64(0)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.usernames.round_time", mock.Anything).Twice()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.uuid_miss", int64(1)).Times(12)
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Times(12)
+
+	suite.Storage.On("GetUuid", mock.Anything).Times(12).Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", mock.Anything, "").Times(12).Return(nil) // should be called with "" if username is not compared to uuid
+	// Storage.GetTextures and Storage.SetTextures shouldn't be called
+
+	suite.MojangApi.On("UsernamesToUuids", usernames[0:10]).Once().Return([]*mojang.ProfileInfo{}, nil)
+	suite.MojangApi.On("UsernamesToUuids", usernames[10:12]).Once().Return([]*mojang.ProfileInfo{}, nil)
+
+	channels := make([]chan *mojang.SignedTexturesResponse, 12)
+	for i, username := range usernames {
+		channels[i] = suite.Queue.GetTexturesForUsername(username)
+	}
+
+	suite.Iterate()
+	suite.Iterate()
+
+	for _, channel := range channels {
+		<-channel
+	}
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForTheSameUsernames() {
+	expectedResult := &mojang.SignedTexturesResponse{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"}
+
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Twice()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.queued", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.already_in_queue", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.iteration_size", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.queue_size", int64(0)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.usernames.round_time", mock.Anything)
+	suite.Logger.On("IncCounter", "mojang_textures.textures.request", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.textures.request_time", mock.Anything).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.uuid_hit", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Twice().Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", "maksimkurb", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil)
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil, &ValueNotFound{})
+	suite.Storage.On("StoreTextures", "0d252b7218b648bfb86c2ae476954d32", expectedResult).Once()
+	suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return([]*mojang.ProfileInfo{
+		{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"},
+	}, nil)
+	suite.MojangApi.On("UuidToTextures", "0d252b7218b648bfb86c2ae476954d32", true).Once().Return(expectedResult, nil)
+
+	resultChan1 := suite.Queue.GetTexturesForUsername("maksimkurb")
+	resultChan2 := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	suite.Iterate()
+
+	suite.Assert().Equal(expectedResult, <-resultChan1)
+	suite.Assert().Equal(expectedResult, <-resultChan2)
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForUsernameThatAlreadyProcessing() {
+	expectedResult := &mojang.SignedTexturesResponse{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"}
+
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Twice()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.queued", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.already_in_queue", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.iteration_size", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.queue_size", int64(0)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.usernames.round_time", mock.Anything)
+	suite.Logger.On("IncCounter", "mojang_textures.textures.request", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.textures.request_time", mock.Anything).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.uuid_hit", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Twice().Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", "maksimkurb", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil)
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Once().Return(nil, &ValueNotFound{})
+	suite.Storage.On("StoreTextures", "0d252b7218b648bfb86c2ae476954d32", expectedResult).Once()
+
+	suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return([]*mojang.ProfileInfo{
+		{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"},
+	}, nil)
+	suite.MojangApi.On("UuidToTextures", "0d252b7218b648bfb86c2ae476954d32", true).
+		Once().
+		After(10*time.Millisecond). // Simulate long round trip
+		Return(expectedResult, nil)
+
+	resultChan1 := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	// Note that for entire test there is only one iteration
+	suite.Iterate()
+
+	// Let it meet delayed UuidToTextures request
+	time.Sleep(5 * time.Millisecond)
+
+	resultChan2 := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	suite.Assert().Equal(expectedResult, <-resultChan1)
+	suite.Assert().Equal(expectedResult, <-resultChan2)
+}
+
+func (suite *queueTestSuite) TestDoNothingWhenNoTasks() {
+	suite.Logger.On("IncCounter", "mojang_textures.request", int64(1)).Once()
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.queued", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.iteration_size", int64(1)).Once()
+	suite.Logger.On("UpdateGauge", "mojang_textures.usernames.queue_size", int64(0)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.usernames.round_time", mock.Anything)
+	suite.Logger.On("IncCounter", "mojang_textures.usernames.uuid_miss", int64(1)).Once()
+	suite.Logger.On("RecordTimer", "mojang_textures.result_time", mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Once().Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", "maksimkurb", "").Once().Return(nil)
+	// Storage.GetTextures and Storage.StoreTextures shouldn't be called
+
+	suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return([]*mojang.ProfileInfo{}, nil)
+
+	// Perform first iteration and await it finish
+	resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+
+	suite.Iterate()
+
+	suite.Assert().Nil(<-resultChan)
+
+	// Let it to perform a few more iterations to ensure, that there is no calls to external APIs
+	suite.Iterate()
+	suite.Iterate()
+}
+
+type timeoutError struct {
+}
+
+func (*timeoutError) Error() string   { return "timeout error" }
+func (*timeoutError) Timeout() bool   { return true }
+func (*timeoutError) Temporary() bool { return false }
+
+var expectedErrors = []error{
+	&mojang.BadRequestError{},
+	&mojang.TooManyRequestsError{},
+	&mojang.ServerError{},
+	&timeoutError{},
+	&url.Error{Op: "GET", URL: "http://localhost"},
+	&net.OpError{Op: "read"},
+	&net.OpError{Op: "dial"},
+	syscall.ECONNREFUSED,
+}
+
+func (suite *queueTestSuite) TestShouldNotLogErrorWhenExpectedErrorReturnedFromUsernameToUuidRequest() {
+	suite.Logger.On("IncCounter", mock.Anything, mock.Anything)
+	suite.Logger.On("UpdateGauge", mock.Anything, mock.Anything)
+	suite.Logger.On("RecordTimer", mock.Anything, mock.Anything)
+	suite.Logger.On("Debug", ":name: Got response error :err", mock.Anything, mock.Anything).Times(len(expectedErrors))
+	suite.Logger.On("Warning", ":name: Got 400 Bad Request :err", mock.Anything, mock.Anything).Once()
+	suite.Logger.On("Warning", ":name: Got 429 Too Many Requests :err", mock.Anything, mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Return("", &ValueNotFound{})
+
+	for _, err := range expectedErrors {
+		suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return(nil, err)
+
+		resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+		suite.Iterate()
+		suite.Assert().Nil(<-resultChan)
+		suite.MojangApi.AssertExpectations(suite.T())
+		suite.MojangApi.ExpectedCalls = nil // https://github.com/stretchr/testify/issues/558#issuecomment-372112364
+	}
+}
+
+func (suite *queueTestSuite) TestShouldLogEmergencyOnUnexpectedErrorReturnedFromUsernameToUuidRequest() {
+	suite.Logger.On("IncCounter", mock.Anything, mock.Anything)
+	suite.Logger.On("UpdateGauge", mock.Anything, mock.Anything)
+	suite.Logger.On("RecordTimer", mock.Anything, mock.Anything)
+	suite.Logger.On("Debug", ":name: Got response error :err", mock.Anything, mock.Anything).Once()
+	suite.Logger.On("Emergency", ":name: Unknown Mojang response error: :err", mock.Anything, mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Return("", &ValueNotFound{})
+
+	suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return(nil, errors.New("unexpected error"))
+
+	resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+	suite.Iterate()
+	suite.Assert().Nil(<-resultChan)
+}
+
+func (suite *queueTestSuite) TestShouldNotLogErrorWhenExpectedErrorReturnedFromUuidToTexturesRequest() {
+	suite.Logger.On("IncCounter", mock.Anything, mock.Anything)
+	suite.Logger.On("UpdateGauge", mock.Anything, mock.Anything)
+	suite.Logger.On("RecordTimer", mock.Anything, mock.Anything)
+	suite.Logger.On("Debug", ":name: Got response error :err", mock.Anything, mock.Anything).Times(len(expectedErrors))
+	suite.Logger.On("Warning", ":name: Got 400 Bad Request :err", mock.Anything, mock.Anything).Once()
+	suite.Logger.On("Warning", ":name: Got 429 Too Many Requests :err", mock.Anything, mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", "maksimkurb", "0d252b7218b648bfb86c2ae476954d32").Return(nil)
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Return(nil, &ValueNotFound{})
+	suite.Storage.On("StoreTextures", "0d252b7218b648bfb86c2ae476954d32", (*mojang.SignedTexturesResponse)(nil))
+
+	for _, err := range expectedErrors {
+		suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return([]*mojang.ProfileInfo{
+			{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"},
+		}, nil)
+		suite.MojangApi.On("UuidToTextures", "0d252b7218b648bfb86c2ae476954d32", true).Once().Return(nil, err)
+
+		resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+		suite.Iterate()
+		suite.Assert().Nil(<-resultChan)
+		suite.MojangApi.AssertExpectations(suite.T())
+		suite.MojangApi.ExpectedCalls = nil // https://github.com/stretchr/testify/issues/558#issuecomment-372112364
+	}
+}
+
+func (suite *queueTestSuite) TestShouldLogEmergencyOnUnexpectedErrorReturnedFromUuidToTexturesRequest() {
+	suite.Logger.On("IncCounter", mock.Anything, mock.Anything)
+	suite.Logger.On("UpdateGauge", mock.Anything, mock.Anything)
+	suite.Logger.On("RecordTimer", mock.Anything, mock.Anything)
+	suite.Logger.On("Debug", ":name: Got response error :err", mock.Anything, mock.Anything).Once()
+	suite.Logger.On("Emergency", ":name: Unknown Mojang response error: :err", mock.Anything, mock.Anything).Once()
+
+	suite.Storage.On("GetUuid", "maksimkurb").Return("", &ValueNotFound{})
+	suite.Storage.On("StoreUuid", "maksimkurb", "0d252b7218b648bfb86c2ae476954d32").Return(nil)
+	suite.Storage.On("GetTextures", "0d252b7218b648bfb86c2ae476954d32").Return(nil, &ValueNotFound{})
+	suite.Storage.On("StoreTextures", "0d252b7218b648bfb86c2ae476954d32", (*mojang.SignedTexturesResponse)(nil))
+
+	suite.MojangApi.On("UsernamesToUuids", []string{"maksimkurb"}).Once().Return([]*mojang.ProfileInfo{
+		{Id: "0d252b7218b648bfb86c2ae476954d32", Name: "maksimkurb"},
+	}, nil)
+	suite.MojangApi.On("UuidToTextures", "0d252b7218b648bfb86c2ae476954d32", true).Once().Return(nil, errors.New("unexpected error"))
+
+	resultChan := suite.Queue.GetTexturesForUsername("maksimkurb")
+	suite.Iterate()
+	suite.Assert().Nil(<-resultChan)
+}
+
+func (suite *queueTestSuite) TestReceiveTexturesForNotAllowedMojangUsername() {
+	suite.Logger.On("IncCounter", "mojang_textures.invalid_username", int64(1)).Once()
+
+	resultChan := suite.Queue.GetTexturesForUsername("Not allowed")
+	suite.Assert().Nil(<-resultChan)
+}
+
+func TestJobsQueueSuite(t *testing.T) {
+	suite.Run(t, new(queueTestSuite))
+}
+
+var replacer = strings.NewReplacer("-", "_", "=", "")
+
+// https://stackoverflow.com/a/50581165
+func randStr(len int) string {
+	buff := make([]byte, len)
+	_, _ = rand.Read(buff)
+	str := replacer.Replace(base64.URLEncoding.EncodeToString(buff))
+
+	// Base 64 can be longer than len
+	return str[:len]
+}
--- a/api/mojang/queue/storage.go
+++ b/api/mojang/queue/storage.go
@@ -0,0 +1,53 @@
+package queue
+
+import "github.com/elyby/chrly/api/mojang"
+
+type UuidsStorage interface {
+	GetUuid(username string) (string, error)
+	StoreUuid(username string, uuid string) error
+}
+
+// nil value can be passed to the storage to indicate that there is no textures
+// for uuid and we know about it. Return err only in case, when storage completely
+// unable to load any information about textures
+type TexturesStorage interface {
+	GetTextures(uuid string) (*mojang.SignedTexturesResponse, error)
+	StoreTextures(uuid string, textures *mojang.SignedTexturesResponse)
+}
+
+type Storage interface {
+	UuidsStorage
+	TexturesStorage
+}
+
+// SplittedStorage allows you to use separate storage engines to satisfy
+// the Storage interface
+type SplittedStorage struct {
+	UuidsStorage
+	TexturesStorage
+}
+
+func (s *SplittedStorage) GetUuid(username string) (string, error) {
+	return s.UuidsStorage.GetUuid(username)
+}
+
+func (s *SplittedStorage) StoreUuid(username string, uuid string) error {
+	return s.UuidsStorage.StoreUuid(username, uuid)
+}
+
+func (s *SplittedStorage) GetTextures(uuid string) (*mojang.SignedTexturesResponse, error) {
+	return s.TexturesStorage.GetTextures(uuid)
+}
+
+func (s *SplittedStorage) StoreTextures(uuid string, textures *mojang.SignedTexturesResponse) {
+	s.TexturesStorage.StoreTextures(uuid, textures)
+}
+
+// This error can be used to indicate, that requested
+// value doesn't exists in the storage
+type ValueNotFound struct {
+}
+
+func (*ValueNotFound) Error() string {
+	return "value not found in the storage"
+}
--- a/api/mojang/queue/storage_test.go
+++ b/api/mojang/queue/storage_test.go
@@ -0,0 +1,89 @@
+package queue
+
+import (
+	"github.com/elyby/chrly/api/mojang"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"testing"
+)
+
+type uuidsStorageMock struct {
+	mock.Mock
+}
+
+func (m *uuidsStorageMock) GetUuid(username string) (string, error) {
+	args := m.Called(username)
+	return args.String(0), args.Error(1)
+}
+
+func (m *uuidsStorageMock) StoreUuid(username string, uuid string) error {
+	m.Called(username, uuid)
+	return nil
+}
+
+type texturesStorageMock struct {
+	mock.Mock
+}
+
+func (m *texturesStorageMock) GetTextures(uuid string) (*mojang.SignedTexturesResponse, error) {
+	args := m.Called(uuid)
+	var result *mojang.SignedTexturesResponse
+	if casted, ok := args.Get(0).(*mojang.SignedTexturesResponse); ok {
+		result = casted
+	}
+
+	return result, args.Error(1)
+}
+
+func (m *texturesStorageMock) StoreTextures(uuid string, textures *mojang.SignedTexturesResponse) {
+	m.Called(uuid, textures)
+}
+
+func TestSplittedStorage(t *testing.T) {
+	createMockedStorage := func() (*SplittedStorage, *uuidsStorageMock, *texturesStorageMock) {
+		uuidsStorage := &uuidsStorageMock{}
+		texturesStorage := &texturesStorageMock{}
+
+		return &SplittedStorage{uuidsStorage, texturesStorage}, uuidsStorage, texturesStorage
+	}
+
+	t.Run("GetUuid", func(t *testing.T) {
+		storage, uuidsMock, _ := createMockedStorage()
+		uuidsMock.On("GetUuid", "username").Once().Return("find me", nil)
+		result, err := storage.GetUuid("username")
+		assert.Nil(t, err)
+		assert.Equal(t, "find me", result)
+		uuidsMock.AssertExpectations(t)
+	})
+
+	t.Run("StoreUuid", func(t *testing.T) {
+		storage, uuidsMock, _ := createMockedStorage()
+		uuidsMock.On("StoreUuid", "username", "result").Once()
+		_ = storage.StoreUuid("username", "result")
+		uuidsMock.AssertExpectations(t)
+	})
+
+	t.Run("GetTextures", func(t *testing.T) {
+		result := &mojang.SignedTexturesResponse{Id: "mock id"}
+		storage, _, texturesMock := createMockedStorage()
+		texturesMock.On("GetTextures", "uuid").Once().Return(result, nil)
+		returned, err := storage.GetTextures("uuid")
+		assert.Nil(t, err)
+		assert.Equal(t, result, returned)
+		texturesMock.AssertExpectations(t)
+	})
+
+	t.Run("StoreTextures", func(t *testing.T) {
+		toStore := &mojang.SignedTexturesResponse{}
+		storage, _, texturesMock := createMockedStorage()
+		texturesMock.On("StoreTextures", "mock id", toStore).Once()
+		storage.StoreTextures("mock id", toStore)
+		texturesMock.AssertExpectations(t)
+	})
+}
+
+func TestValueNotFound_Error(t *testing.T) {
+	err := &ValueNotFound{}
+	assert.Equal(t, "value not found in the storage", err.Error())
+}
--- a/api/mojang/textures.go
+++ b/api/mojang/textures.go
@@ -0,0 +1,51 @@
+package mojang
+
+import (
+	"encoding/base64"
+	"encoding/json"
+)
+
+type TexturesProp struct {
+	Timestamp   int64             `json:"timestamp"`
+	ProfileID   string            `json:"profileId"`
+	ProfileName string            `json:"profileName"`
+	Textures    *TexturesResponse `json:"textures"`
+}
+
+type TexturesResponse struct {
+	Skin *SkinTexturesResponse `json:"SKIN,omitempty"`
+	Cape *CapeTexturesResponse `json:"CAPE,omitempty"`
+}
+
+type SkinTexturesResponse struct {
+	Url      string                `json:"url"`
+	Metadata *SkinTexturesMetadata `json:"metadata,omitempty"`
+}
+
+type SkinTexturesMetadata struct {
+	Model string `json:"model"`
+}
+
+type CapeTexturesResponse struct {
+	Url string `json:"url"`
+}
+
+func DecodeTextures(encodedTextures string) (*TexturesProp, error) {
+	jsonStr, err := base64.URLEncoding.DecodeString(encodedTextures)
+	if err != nil {
+		return nil, err
+	}
+
+	var result *TexturesProp
+	err = json.Unmarshal(jsonStr, &result)
+	if err != nil {
+		return nil, err
+	}
+
+	return result, nil
+}
+
+func EncodeTextures(textures *TexturesProp) string {
+	jsonSerialized, _ := json.Marshal(textures)
+	return base64.URLEncoding.EncodeToString(jsonSerialized)
+}
--- a/api/mojang/textures_test.go
+++ b/api/mojang/textures_test.go
@@ -0,0 +1,112 @@
+package mojang
+
+import (
+	testify "github.com/stretchr/testify/assert"
+	"testing"
+)
+
+type texturesTestCase struct {
+	Name    string
+	Encoded string
+	Decoded *TexturesProp
+}
+
+var texturesTestCases = []*texturesTestCase{
+	{
+		Name:    "property without textures",
+		Encoded: "eyJ0aW1lc3RhbXAiOjE1NTU4NTYwMTA0OTQsInByb2ZpbGVJZCI6IjNlM2VlNmMzNWFmYTQ4YWJiNjFlOGNkOGM0MmZjMGQ5IiwicHJvZmlsZU5hbWUiOiJFcmlja1NrcmF1Y2giLCJ0ZXh0dXJlcyI6e319",
+		Decoded: &TexturesProp{
+			ProfileID:   "3e3ee6c35afa48abb61e8cd8c42fc0d9",
+			ProfileName: "ErickSkrauch",
+			Timestamp:   int64(1555856010494),
+			Textures:    &TexturesResponse{},
+		},
+	},
+	{
+		Name:    "property with classic skin textures",
+		Encoded: "eyJ0aW1lc3RhbXAiOjE1NTU4NTYzMDc0MTIsInByb2ZpbGVJZCI6IjNlM2VlNmMzNWFmYTQ4YWJiNjFlOGNkOGM0MmZjMGQ5IiwicHJvZmlsZU5hbWUiOiJFcmlja1NrcmF1Y2giLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZmMxNzU3NjMzN2ExMDZkOWMyMmFjNzgyZTM2MmMxNmM0ZTBlNDliZTUzZmFhNDE4NTdiZmYzMzJiNzc5MjgxZSJ9fX0=",
+		Decoded: &TexturesProp{
+			ProfileID:   "3e3ee6c35afa48abb61e8cd8c42fc0d9",
+			ProfileName: "ErickSkrauch",
+			Timestamp:   int64(1555856307412),
+			Textures: &TexturesResponse{
+				Skin: &SkinTexturesResponse{
+					Url: "http://textures.minecraft.net/texture/fc17576337a106d9c22ac782e362c16c4e0e49be53faa41857bff332b779281e",
+				},
+			},
+		},
+	},
+	{
+		Name:    "property with alex skin textures",
+		Encoded: "eyJ0aW1lc3RhbXAiOjE1NTU4NTY0OTQ3OTEsInByb2ZpbGVJZCI6IjNlM2VlNmMzNWFmYTQ4YWJiNjFlOGNkOGM0MmZjMGQ5IiwicHJvZmlsZU5hbWUiOiJFcmlja1NrcmF1Y2giLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNjlmNzUzNWY4YzNhMjE1ZDFkZTc3MmIyODdmMTc3M2IzNTg5OGVmNzUyZDI2YmRkZjRhMjVhZGFiNjVjMTg1OSIsIm1ldGFkYXRhIjp7Im1vZGVsIjoic2xpbSJ9fX19",
+		Decoded: &TexturesProp{
+			ProfileID:   "3e3ee6c35afa48abb61e8cd8c42fc0d9",
+			ProfileName: "ErickSkrauch",
+			Timestamp:   int64(1555856494791),
+			Textures: &TexturesResponse{
+				Skin: &SkinTexturesResponse{
+					Url: "http://textures.minecraft.net/texture/69f7535f8c3a215d1de772b287f1773b35898ef752d26bddf4a25adab65c1859",
+					Metadata: &SkinTexturesMetadata{
+						Model: "slim",
+					},
+				},
+			},
+		},
+	},
+	{
+		Name:    "property with skin and cape textures",
+		Encoded: "eyJ0aW1lc3RhbXAiOjE1NTU4NTc2NzUzMzUsInByb2ZpbGVJZCI6ImQ5MGI2OGJjODE3MjQzMjlhMDQ3ZjExODZkY2Q0MzM2IiwicHJvZmlsZU5hbWUiOiJha3Jvbm1hbjEiLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvM2U2ZGVmY2I3ZGU1YTBlMDVjNzUyNWM2Y2Q0NmU0YjliNDE2YjkyZTBjZjRiYWExZTBhOWUyMTJhODg3ZjNmNyJ9LCJDQVBFIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNzBlZmZmYWY4NmZlNWJjMDg5NjA4ZDNjYjI5N2QzZTI3NmI5ZWI3YThmOWYyZmU2NjU5YzIzYTJkOGIxOGVkZiJ9fX0=",
+		Decoded: &TexturesProp{
+			ProfileID:   "d90b68bc81724329a047f1186dcd4336",
+			ProfileName: "akronman1",
+			Timestamp:   int64(1555857675335),
+			Textures: &TexturesResponse{
+				Skin: &SkinTexturesResponse{
+					Url: "http://textures.minecraft.net/texture/3e6defcb7de5a0e05c7525c6cd46e4b9b416b92e0cf4baa1e0a9e212a887f3f7",
+				},
+				Cape: &CapeTexturesResponse{
+					Url: "http://textures.minecraft.net/texture/70efffaf86fe5bc089608d3cb297d3e276b9eb7a8f9f2fe6659c23a2d8b18edf",
+				},
+			},
+		},
+	},
+}
+
+func TestDecodeTextures(t *testing.T) {
+	for _, testCase := range texturesTestCases {
+		t.Run("decode "+testCase.Name, func(t *testing.T) {
+			assert := testify.New(t)
+
+			result, err := DecodeTextures(testCase.Encoded)
+			assert.Nil(err)
+			assert.Equal(testCase.Decoded, result)
+		})
+	}
+
+	t.Run("should return error if invalid base64 passed", func(t *testing.T) {
+		assert := testify.New(t)
+
+		result, err := DecodeTextures("invalid base64")
+		assert.Error(err)
+		assert.Nil(result)
+	})
+
+	t.Run("should return error if invalid json found inside base64", func(t *testing.T) {
+		assert := testify.New(t)
+
+		result, err := DecodeTextures("aW52YWxpZCBqc29u") // encoded "invalid json"
+		assert.Error(err)
+		assert.Nil(result)
+	})
+}
+
+func TestEncodeTextures(t *testing.T) {
+	for _, testCase := range texturesTestCases {
+		t.Run("encode "+testCase.Name, func(t *testing.T) {
+			assert := testify.New(t)
+
+			result := EncodeTextures(testCase.Decoded)
+			assert.Equal(testCase.Encoded, result)
+		})
+	}
+}
--- a/cmd/serve.go
+++ b/cmd/serve.go
@@ -4,11 +4,11 @@ import (
 	"fmt"
 	"log"

-	"github.com/elyby/chrly/auth"
-
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"

+	"github.com/elyby/chrly/api/mojang/queue"
+	"github.com/elyby/chrly/auth"
 	"github.com/elyby/chrly/bootstrap"
 	"github.com/elyby/chrly/db"
 	"github.com/elyby/chrly/http"
@@ -27,7 +27,8 @@ var serveCmd = &cobra.Command{
 		storageFactory := db.StorageFactory{Config: viper.GetViper()}

 		logger.Info("Initializing skins repository")
-		skinsRepo, err := storageFactory.CreateFactory("redis").CreateSkinsRepository()
+		redisFactory := storageFactory.CreateFactory("redis")
+		skinsRepo, err := redisFactory.CreateSkinsRepository()
 		if err != nil {
 			logger.Emergency(fmt.Sprintf("Error on creating skins repo: %+v", err))
 			return
@@ -35,19 +36,39 @@ var serveCmd = &cobra.Command{
 		logger.Info("Skins repository successfully initialized")

 		logger.Info("Initializing capes repository")
-		capesRepo, err := storageFactory.CreateFactory("filesystem").CreateCapesRepository()
+		filesystemFactory := storageFactory.CreateFactory("filesystem")
+		capesRepo, err := filesystemFactory.CreateCapesRepository()
 		if err != nil {
 			logger.Emergency(fmt.Sprintf("Error on creating capes repo: %v", err))
 			return
 		}
 		logger.Info("Capes repository successfully initialized")

+		logger.Info("Preparing Mojang's textures queue")
+		mojangUuidsRepository, err := redisFactory.CreateMojangUuidsRepository()
+		if err != nil {
+			logger.Emergency(fmt.Sprintf("Error on creating mojang uuids repo: %v", err))
+			return
+		}
+
+		texturesStorage := queue.CreateInMemoryTexturesStorage()
+		texturesStorage.Start()
+		mojangTexturesQueue := &queue.JobsQueue{
+			Logger: logger,
+			Storage: &queue.SplittedStorage{
+				UuidsStorage:    mojangUuidsRepository,
+				TexturesStorage: texturesStorage,
+			},
+		}
+		logger.Info("Mojang's textures queue is successfully initialized")
+
 		cfg := &http.Config{
-			ListenSpec: fmt.Sprintf("%s:%d", viper.GetString("server.host"), viper.GetInt("server.port")),
-			SkinsRepo:  skinsRepo,
-			CapesRepo:  capesRepo,
-			Logger:     logger,
-			Auth:       &auth.JwtAuth{Key: []byte(viper.GetString("chrly.secret"))},
+			ListenSpec:          fmt.Sprintf("%s:%d", viper.GetString("server.host"), viper.GetInt("server.port")),
+			SkinsRepo:           skinsRepo,
+			CapesRepo:           capesRepo,
+			MojangTexturesQueue: mojangTexturesQueue,
+			Logger:              logger,
+			Auth:                &auth.JwtAuth{Key: []byte(viper.GetString("chrly.secret"))},
 		}

 		if err := cfg.Run(); err != nil {
--- a/db/factory.go
+++ b/db/factory.go
@@ -3,6 +3,7 @@ package db
 import (
 	"github.com/spf13/viper"

+	"github.com/elyby/chrly/api/mojang/queue"
 	"github.com/elyby/chrly/interfaces"
 )

@@ -13,6 +14,7 @@ type StorageFactory struct {
 type RepositoriesCreator interface {
 	CreateSkinsRepository() (interfaces.SkinsRepository, error)
 	CreateCapesRepository() (interfaces.CapesRepository, error)
+	CreateMojangUuidsRepository() (queue.UuidsStorage, error)
 }

 func (factory *StorageFactory) CreateFactory(backend string) RepositoriesCreator {
@@ -25,7 +27,7 @@ func (factory *StorageFactory) CreateFactory(backend string) RepositoriesCreator
 		}
 	case "filesystem":
 		return &FilesystemFactory{
-			BasePath    : factory.Config.GetString("storage.filesystem.basePath"),
+			BasePath:     factory.Config.GetString("storage.filesystem.basePath"),
 			CapesDirName: factory.Config.GetString("storage.filesystem.capesDirName"),
 		}
 	}
--- a/db/filesystem.go
+++ b/db/filesystem.go
@@ -5,12 +5,13 @@ import (
 	"path"
 	"strings"

+	"github.com/elyby/chrly/api/mojang/queue"
 	"github.com/elyby/chrly/interfaces"
 	"github.com/elyby/chrly/model"
 )

 type FilesystemFactory struct {
-	BasePath 	 string
+	BasePath     string
 	CapesDirName string
 }

@@ -26,6 +27,10 @@ func (f FilesystemFactory) CreateCapesRepository() (interfaces.CapesRepository,
 	return &filesStorage{path: path.Join(f.BasePath, f.CapesDirName)}, nil
 }

+func (f FilesystemFactory) CreateMojangUuidsRepository() (queue.UuidsStorage, error) {
+	panic("implement me")
+}
+
 func (f FilesystemFactory) validateFactoryConfig() error {
 	if f.BasePath == "" {
 		return &ParamRequired{"basePath"}
@@ -47,7 +52,7 @@ func (repository *filesStorage) FindByUsername(username string) (*model.Cape, er
 		return nil, &CapeNotFoundError{username}
 	}

-	capePath := path.Join(repository.path, strings.ToLower(username) + ".png")
+	capePath := path.Join(repository.path, strings.ToLower(username)+".png")
 	file, err := os.Open(capePath)
 	if err != nil {
 		return nil, &CapeNotFoundError{username}
--- a/db/redis.go
+++ b/db/redis.go
@@ -6,7 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"log"
+	"strconv"
 	"strings"
 	"time"

@@ -14,34 +14,41 @@ import (
 	"github.com/mediocregopher/radix.v2/redis"
 	"github.com/mediocregopher/radix.v2/util"

+	"github.com/elyby/chrly/api/mojang/queue"
 	"github.com/elyby/chrly/interfaces"
 	"github.com/elyby/chrly/model"
 )

 type RedisFactory struct {
-	Host       string
-	Port       int
-	PoolSize   int
-	connection *pool.Pool
+	Host     string
+	Port     int
+	PoolSize int
+	pool     *pool.Pool
 }

-// TODO: maybe we should manually return connection to the pool?
+func (f *RedisFactory) CreateSkinsRepository() (interfaces.SkinsRepository, error) {
+	return f.createInstance()
+}

-func (f RedisFactory) CreateSkinsRepository() (interfaces.SkinsRepository, error) {
-	connection, err := f.getConnection()
+func (f *RedisFactory) CreateCapesRepository() (interfaces.CapesRepository, error) {
+	panic("capes repository not supported for this storage type")
+}
+
+func (f *RedisFactory) CreateMojangUuidsRepository() (queue.UuidsStorage, error) {
+	return f.createInstance()
+}
+
+func (f *RedisFactory) createInstance() (*redisDb, error) {
+	p, err := f.getPool()
 	if err != nil {
 		return nil, err
 	}

-	return &redisDb{connection}, nil
+	return &redisDb{p}, nil
 }

-func (f RedisFactory) CreateCapesRepository() (interfaces.CapesRepository, error) {
-	panic("capes repository not supported for this storage type")
-}
-
-func (f RedisFactory) getConnection() (*pool.Pool, error) {
-	if f.connection == nil {
+func (f *RedisFactory) getPool() (*pool.Pool, error) {
+	if f.pool == nil {
 		if f.Host == "" {
 			return nil, &ParamRequired{"host"}
 		}
@@ -56,63 +63,87 @@ func (f RedisFactory) getConnection() (*pool.Pool, error) {
 			return nil, err
 		}

-		f.connection = conn
-
-		go func() {
-			period := 5
-			for {
-				time.Sleep(time.Duration(period) * time.Second)
-				resp := f.connection.Cmd("PING")
-				if resp.Err == nil {
-					continue
-				}
-
-				log.Println("Redis not pinged. Try to reconnect")
-				conn, err := pool.New("tcp", addr, f.PoolSize)
-				if err != nil {
-					log.Printf("Cannot reconnect to redis: %v\n", err)
-					log.Printf("Waiting %d seconds to retry\n", period)
-					continue
-				}
-
-				f.connection = conn
-				log.Println("Reconnected")
-			}
-		}()
+		f.pool = conn
 	}

-	return f.connection, nil
+	return f.pool, nil
 }

 type redisDb struct {
-	conn *pool.Pool
+	pool *pool.Pool
 }

 const accountIdToUsernameKey = "hash:username-to-account-id"
+const mojangUsernameToUuidKey = "hash:mojang-username-to-uuid"

 func (db *redisDb) FindByUsername(username string) (*model.Skin, error) {
-	return findByUsername(username, db.getConn())
+	conn, err := db.pool.Get()
+	if err != nil {
+		return nil, err
+	}
+	defer db.pool.Put(conn)
+
+	return findByUsername(username, conn)
 }

 func (db *redisDb) FindByUserId(id int) (*model.Skin, error) {
-	return findByUserId(id, db.getConn())
+	conn, err := db.pool.Get()
+	if err != nil {
+		return nil, err
+	}
+	defer db.pool.Put(conn)
+
+	return findByUserId(id, conn)
 }

 func (db *redisDb) Save(skin *model.Skin) error {
-	return save(skin, db.getConn())
+	conn, err := db.pool.Get()
+	if err != nil {
+		return err
+	}
+	defer db.pool.Put(conn)
+
+	return save(skin, conn)
 }

 func (db *redisDb) RemoveByUserId(id int) error {
-	return removeByUserId(id, db.getConn())
+	conn, err := db.pool.Get()
+	if err != nil {
+		return err
+	}
+	defer db.pool.Put(conn)
+
+	return removeByUserId(id, conn)
 }

 func (db *redisDb) RemoveByUsername(username string) error {
-	return removeByUsername(username, db.getConn())
+	conn, err := db.pool.Get()
+	if err != nil {
+		return err
+	}
+	defer db.pool.Put(conn)
+
+	return removeByUsername(username, conn)
 }

-func (db *redisDb) getConn() util.Cmder {
-	conn, _ := db.conn.Get()
-	return conn
+func (db *redisDb) GetUuid(username string) (string, error) {
+	conn, err := db.pool.Get()
+	if err != nil {
+		return "", err
+	}
+	defer db.pool.Put(conn)
+
+	return findMojangUuidByUsername(username, conn)
+}
+
+func (db *redisDb) StoreUuid(username string, uuid string) error {
+	conn, err := db.pool.Get()
+	if err != nil {
+		return err
+	}
+	defer db.pool.Put(conn)
+
+	return storeMojangUuid(username, uuid, conn)
 }

 func findByUsername(username string, conn util.Cmder) (*model.Skin, error) {
@@ -122,7 +153,7 @@ func findByUsername(username string, conn util.Cmder) (*model.Skin, error) {

 	redisKey := buildUsernameKey(username)
 	response := conn.Cmd("GET", redisKey)
-	if response.IsType(redis.Nil) {
+	if !response.IsType(redis.Str) {
 		return nil, &SkinNotFoundError{username}
 	}

@@ -149,7 +180,7 @@ func findByUsername(username string, conn util.Cmder) (*model.Skin, error) {

 func findByUserId(id int, conn util.Cmder) (*model.Skin, error) {
 	response := conn.Cmd("HGET", accountIdToUsernameKey, id)
-	if response.IsType(redis.Nil) {
+	if !response.IsType(redis.Str) {
 		return nil, &SkinNotFoundError{"unknown"}
 	}

@@ -181,17 +212,17 @@ func removeByUserId(id int, conn util.Cmder) error {
 func removeByUsername(username string, conn util.Cmder) error {
 	record, err := findByUsername(username, conn)
 	if err != nil {
-		if _, ok := err.(*SkinNotFoundError); !ok {
-			return err
+		if _, ok := err.(*SkinNotFoundError); ok {
+			return nil
 		}
+
+		return err
 	}

 	conn.Cmd("MULTI")

 	conn.Cmd("DEL", buildUsernameKey(record.Username))
-	if record != nil {
-		conn.Cmd("HDEL", accountIdToUsernameKey, record.UserId)
-	}
+	conn.Cmd("HDEL", accountIdToUsernameKey, record.UserId)

 	conn.Cmd("EXEC")

@@ -221,6 +252,33 @@ func save(skin *model.Skin, conn util.Cmder) error {
 	return nil
 }

+func findMojangUuidByUsername(username string, conn util.Cmder) (string, error) {
+	response := conn.Cmd("HGET", mojangUsernameToUuidKey, strings.ToLower(username))
+	if response.IsType(redis.Nil) {
+		return "", &queue.ValueNotFound{}
+	}
+
+	data, _ := response.Str()
+	parts := strings.Split(data, ":")
+	timestamp, _ := strconv.ParseInt(parts[1], 10, 64)
+	storedAt := time.Unix(timestamp, 0)
+	if storedAt.Add(time.Hour * 24 * 30).Before(time.Now()) {
+		return "", &queue.ValueNotFound{}
+	}
+
+	return parts[0], nil
+}
+
+func storeMojangUuid(username string, uuid string, conn util.Cmder) error {
+	value := uuid + ":" + strconv.FormatInt(time.Now().Unix(), 10)
+	res := conn.Cmd("HSET", mojangUsernameToUuidKey, strings.ToLower(username), value)
+	if res.IsType(redis.Err) {
+		return res.Err
+	}
+
+	return nil
+}
+
 func buildUsernameKey(username string) string {
 	return "username:" + strings.ToLower(username)
 }
@@ -228,8 +286,8 @@ func buildUsernameKey(username string) string {
 func zlibEncode(str []byte) []byte {
 	var buff bytes.Buffer
 	writer := zlib.NewWriter(&buff)
-	writer.Write(str)
-	writer.Close()
+	_, _ = writer.Write(str)
+	_ = writer.Close()

 	return buff.Bytes()
 }
@@ -242,7 +300,7 @@ func zlibDecode(bts []byte) ([]byte, error) {
 	}

 	resultBuffer := new(bytes.Buffer)
-	io.Copy(resultBuffer, reader)
+	_, _ = io.Copy(resultBuffer, reader)
 	reader.Close()

 	return resultBuffer.Bytes(), nil
--- a/http/api.go
+++ b/http/api.go
@@ -20,6 +20,7 @@ import (

 //noinspection GoSnakeCaseUsage
 const UUID_ANY = "^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
+
 var regexUuidAny = regexp.MustCompile(UUID_ANY)

 func init() {
@@ -71,7 +72,6 @@ func (cfg *Config) PostSkin(resp http.ResponseWriter, req *http.Request) {

 	record.Uuid = req.Form.Get("uuid")
 	record.SkinId = skinId
-	record.Hash = req.Form.Get("hash")
 	record.Is1_8 = is18
 	record.IsSlim = isSlim
 	record.Url = req.Form.Get("url")
@@ -115,7 +115,7 @@ func (cfg *Config) DeleteSkinByUsername(resp http.ResponseWriter, req *http.Requ
 	cfg.deleteSkin(skin, resp)
 }

-func (cfg *Config) Authenticate(handler http.Handler) http.Handler {
+func (cfg *Config) AuthenticationMiddleware(handler http.Handler) http.Handler {
 	return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
 		cfg.Logger.IncCounter("authentication.challenge", 1)
 		err := cfg.Auth.Check(req)
@@ -152,7 +152,7 @@ func validatePostSkinRequest(request *http.Request) map[string][]string {
 	const maxMultipartMemory int64 = 32 << 20
 	const oneOfSkinOrUrlMessage = "One of url or skin should be provided, but not both"

-	request.ParseMultipartForm(maxMultipartMemory)
+	_ = request.ParseMultipartForm(maxMultipartMemory)

 	validationRules := govalidator.MapData{
 		"identityId": {"required", "numeric", "min:1"},
@@ -161,7 +161,6 @@ func validatePostSkinRequest(request *http.Request) map[string][]string {
 		"skinId":     {"required", "numeric", "min:1"},
 		"url":        {"url"},
 		"file:skin":  {"ext:png", "size:24576", "mime:image/png"},
-		"hash":       {},
 		"is1_8":      {"bool"},
 		"isSlim":     {"bool"},
 	}
@@ -174,7 +173,6 @@ func validatePostSkinRequest(request *http.Request) map[string][]string {
 	} else if skinErr == nil {
 		validationRules["file:skin"] = append(validationRules["file:skin"], "skinUploadingNotAvailable")
 	} else if url != "" {
-		validationRules["hash"] = append(validationRules["hash"], "required")
 		validationRules["is1_8"] = append(validationRules["is1_8"], "required")
 		validationRules["isSlim"] = append(validationRules["isSlim"], "required")
 	}
@@ -213,7 +211,7 @@ func findIdentity(repo interfaces.SkinsRepository, identityId int, username stri

 		record, err = repo.FindByUsername(username)
 		if err == nil {
-			repo.RemoveByUsername(username)
+			_ = repo.RemoveByUsername(username)
 			record.UserId = identityId
 		} else {
 			record = &model.Skin{
@@ -222,7 +220,7 @@ func findIdentity(repo interfaces.SkinsRepository, identityId int, username stri
 			}
 		}
 	} else if record.Username != username {
-		repo.RemoveByUserId(identityId)
+		_ = repo.RemoveByUserId(identityId)
 		record.Username = username
 	}

@@ -235,7 +233,7 @@ func apiBadRequest(resp http.ResponseWriter, errorsPerField map[string][]string)
 	result, _ := json.Marshal(map[string]interface{}{
 		"errors": errorsPerField,
 	})
-	resp.Write(result)
+	_, _ = resp.Write(result)
 }

 func apiForbidden(resp http.ResponseWriter, reason string) {
@@ -244,7 +242,7 @@ func apiForbidden(resp http.ResponseWriter, reason string) {
 	result, _ := json.Marshal(map[string]interface{}{
 		"error": reason,
 	})
-	resp.Write(result)
+	_, _ = resp.Write(result)
 }

 func apiNotFound(resp http.ResponseWriter, reason string) {
@@ -253,7 +251,7 @@ func apiNotFound(resp http.ResponseWriter, reason string) {
 	result, _ := json.Marshal([]interface{}{
 		reason,
 	})
-	resp.Write(result)
+	_, _ = resp.Write(result)
 }

 func apiServerError(resp http.ResponseWriter) {
--- a/http/api_test.go
+++ b/http/api_test.go
@@ -17,474 +17,474 @@ import (
 	testify "github.com/stretchr/testify/assert"
 )

-func TestConfig_PostSkin_Valid(t *testing.T) {
-	assert := testify.New(t)
+func TestConfig_PostSkin(t *testing.T) {
+	t.Run("Upload new identity with textures info", func(t *testing.T) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	resultModel := createSkinModel("mock_user", false)
-	resultModel.SkinId = 5
-	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
-	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
-	resultModel.MojangTextures = ""
-	resultModel.MojangSignature = ""
+		resultModel := createSkinModel("mock_user", false)
+		resultModel.SkinId = 5
+		resultModel.Url = "http://example.com/skin.png"
+		resultModel.MojangTextures = ""
+		resultModel.MojangSignature = ""

-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
-	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
-
-	form := url.Values{
-		"identityId": {"1"},
-		"username":   {"mock_user"},
-		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
-		"skinId":     {"5"},
-		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
-		"is1_8":      {"0"},
-		"isSlim":     {"0"},
-		"url":        {"http://ely.by/minecraft/skins/default.png"},
-	}
-
-	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
-	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(201, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.Empty(response)
-}
-
-func TestConfig_PostSkin_ChangedIdentityId(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	resultModel := createSkinModel("mock_user", false)
-	resultModel.UserId = 2
-	resultModel.SkinId = 5
-	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
-	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
-	resultModel.MojangTextures = ""
-	resultModel.MojangSignature = ""
-
-	form := url.Values{
-		"identityId": {"2"},
-		"username":   {"mock_user"},
-		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
-		"skinId":     {"5"},
-		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
-		"is1_8":      {"0"},
-		"isSlim":     {"0"},
-		"url":        {"http://ely.by/minecraft/skins/default.png"},
-	}
-
-	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
-	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
-	w := httptest.NewRecorder()
-
-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUserId(2).Return(nil, &db.SkinNotFoundError{"unknown"})
-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	mocks.Skins.EXPECT().RemoveByUsername("mock_user").Return(nil)
-	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(201, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.Empty(response)
-}
-
-func TestConfig_PostSkin_ChangedUsername(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	resultModel := createSkinModel("changed_username", false)
-	resultModel.SkinId = 5
-	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
-	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
-	resultModel.MojangTextures = ""
-	resultModel.MojangSignature = ""
-
-	form := url.Values{
-		"identityId": {"1"},
-		"username":   {"changed_username"},
-		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
-		"skinId":     {"5"},
-		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
-		"is1_8":      {"0"},
-		"isSlim":     {"0"},
-		"url":        {"http://ely.by/minecraft/skins/default.png"},
-	}
-
-	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
-	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
-	w := httptest.NewRecorder()
-
-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
-	mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
-	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(201, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.Empty(response)
-}
-
-func TestConfig_PostSkin_CompletelyNewIdentity(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	resultModel := createSkinModel("mock_user", false)
-	resultModel.SkinId = 5
-	resultModel.Hash = "94a457d92a61460cb9cb5d6f29732d2a"
-	resultModel.Url = "http://ely.by/minecraft/skins/default.png"
-	resultModel.MojangTextures = ""
-	resultModel.MojangSignature = ""
-
-	form := url.Values{
-		"identityId": {"1"},
-		"username":   {"mock_user"},
-		"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
-		"skinId":     {"5"},
-		"hash":       {"94a457d92a61460cb9cb5d6f29732d2a"},
-		"is1_8":      {"0"},
-		"isSlim":     {"0"},
-		"url":        {"http://ely.by/minecraft/skins/default.png"},
-	}
-
-	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
-	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
-	w := httptest.NewRecorder()
-
-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUserId(1).Return(nil, &db.SkinNotFoundError{"unknown"})
-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{"mock_user"})
-	mocks.Skins.EXPECT().Save(resultModel).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(201, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.Empty(response)
-}
-
-func TestConfig_PostSkin_UploadSkin(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	body := &bytes.Buffer{}
-	writer := multipart.NewWriter(body)
-
-	part, _ := writer.CreateFormFile("skin", "char.png")
-	part.Write(loadSkinFile())
-
-	_ = writer.WriteField("identityId", "1")
-	_ = writer.WriteField("username", "mock_user")
-	_ = writer.WriteField("uuid", "0f657aa8-bfbe-415d-b700-5750090d3af3")
-	_ = writer.WriteField("skinId", "5")
-
-	err := writer.Close()
-	if err != nil {
-		panic(err)
-	}
-
-	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", body)
-	req.Header.Add("Content-Type", writer.FormDataContentType())
-	w := httptest.NewRecorder()
-
-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.validation_failed", int64(1))
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(400, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"errors": {
-			"skin": [
-			    "Skin uploading is temporary unavailable"
-			]
+		form := url.Values{
+			"identityId": {"1"},
+			"username":   {"mock_user"},
+			"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+			"skinId":     {"5"},
+			"is1_8":      {"0"},
+			"isSlim":     {"0"},
+			"url":        {"http://example.com/skin.png"},
 		}
-	}`, string(response))
-}

-func TestConfig_PostSkin_RequiredFields(t *testing.T) {
-	assert := testify.New(t)
+		req := httptest.NewRequest("POST", "http://chrly/api/skins", bytes.NewBufferString(form.Encode()))
+		req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+		w := httptest.NewRecorder()

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUserId(1).Return(nil, &db.SkinNotFoundError{Who: "unknown"})
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{Who: "mock_user"})
+		mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))

-	config, mocks := setupMocks(ctrl)
+		config.CreateHandler().ServeHTTP(w, req)

-	form := url.Values{
-		"mojangTextures": {"someBase64EncodedString"},
-	}
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(201, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Empty(response)
+	})

-	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", bytes.NewBufferString(form.Encode()))
-	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
-	w := httptest.NewRecorder()
+	t.Run("Upload new identity with skin file", func(t *testing.T) {
+		assert := testify.New(t)

-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.post.validation_failed", int64(1))
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config.CreateHandler().ServeHTTP(w, req)
+		config, mocks := setupMocks(ctrl)

-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(400, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"errors": {
-			"identityId": [
-			    "The identityId field is required",
-				"The identityId field must be numeric",
-				"The identityId field must be minimum 1 char"
-			],
-            "skinId": [
-				"The skinId field is required",
-				"The skinId field must be numeric",
-				"The skinId field must be minimum 1 char"
-			],
-			"username": [
-				"The username field is required"
-			],
-			"uuid": [
-				"The uuid field is required",
-				"The uuid field must contain valid UUID"
-			],
-			"url": [
-				"One of url or skin should be provided, but not both"
-			],
-			"skin": [
-				"One of url or skin should be provided, but not both"
-			],
-			"mojangSignature": [
-				"The mojangSignature field is required"
-			]
+		body := &bytes.Buffer{}
+		writer := multipart.NewWriter(body)
+
+		part, _ := writer.CreateFormFile("skin", "char.png")
+		_, _ = part.Write(loadSkinFile())
+
+		_ = writer.WriteField("identityId", "1")
+		_ = writer.WriteField("username", "mock_user")
+		_ = writer.WriteField("uuid", "0f657aa8-bfbe-415d-b700-5750090d3af3")
+		_ = writer.WriteField("skinId", "5")
+
+		err := writer.Close()
+		if err != nil {
+			panic(err)
 		}
-	}`, string(response))
+
+		req := httptest.NewRequest("POST", "http://chrly/api/skins", body)
+		req.Header.Add("Content-Type", writer.FormDataContentType())
+		w := httptest.NewRecorder()
+
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.validation_failed", int64(1))
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(400, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"errors": {
+				"skin": [
+					"Skin uploading is temporary unavailable"
+				]
+			}
+		}`, string(response))
+	})
+
+	t.Run("Keep the same identityId, uuid and username, but change textures information", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		resultModel := createSkinModel("mock_user", false)
+		resultModel.SkinId = 5
+		resultModel.Url = "http://textures-server.com/skin.png"
+		resultModel.MojangTextures = ""
+		resultModel.MojangSignature = ""
+
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
+		mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
+
+		form := url.Values{
+			"identityId": {"1"},
+			"username":   {"mock_user"},
+			"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+			"skinId":     {"5"},
+			"is1_8":      {"0"},
+			"isSlim":     {"0"},
+			"url":        {"http://textures-server.com/skin.png"},
+		}
+
+		req := httptest.NewRequest("POST", "http://chrly/api/skins", bytes.NewBufferString(form.Encode()))
+		req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(201, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Empty(response)
+	})
+
+	t.Run("Keep the same uuid and username, but change identityId", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		resultModel := createSkinModel("mock_user", false)
+		resultModel.UserId = 2
+		resultModel.SkinId = 5
+		resultModel.Url = "http://example.com/skin.png"
+		resultModel.MojangTextures = ""
+		resultModel.MojangSignature = ""
+
+		form := url.Values{
+			"identityId": {"2"},
+			"username":   {"mock_user"},
+			"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+			"skinId":     {"5"},
+			"is1_8":      {"0"},
+			"isSlim":     {"0"},
+			"url":        {"http://example.com/skin.png"},
+		}
+
+		req := httptest.NewRequest("POST", "http://chrly/api/skins", bytes.NewBufferString(form.Encode()))
+		req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+		w := httptest.NewRecorder()
+
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUserId(2).Return(nil, &db.SkinNotFoundError{Who: "unknown"})
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+		mocks.Skins.EXPECT().RemoveByUsername("mock_user").Return(nil)
+		mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(201, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Empty(response)
+	})
+
+	t.Run("Keep the same identityId and uuid, but change username", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		resultModel := createSkinModel("changed_username", false)
+		resultModel.SkinId = 5
+		resultModel.Url = "http://example.com/skin.png"
+		resultModel.MojangTextures = ""
+		resultModel.MojangSignature = ""
+
+		form := url.Values{
+			"identityId": {"1"},
+			"username":   {"changed_username"},
+			"uuid":       {"0f657aa8-bfbe-415d-b700-5750090d3af3"},
+			"skinId":     {"5"},
+			"is1_8":      {"0"},
+			"isSlim":     {"0"},
+			"url":        {"http://example.com/skin.png"},
+		}
+
+		req := httptest.NewRequest("POST", "http://chrly/api/skins", bytes.NewBufferString(form.Encode()))
+		req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+		w := httptest.NewRecorder()
+
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
+		mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
+		mocks.Skins.EXPECT().Save(resultModel).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.success", int64(1))
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(201, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Empty(response)
+	})
+
+	t.Run("Get errors about required fields", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		form := url.Values{
+			"mojangTextures": {"someBase64EncodedString"},
+		}
+
+		req := httptest.NewRequest("POST", "http://chrly/api/skins", bytes.NewBufferString(form.Encode()))
+		req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
+		w := httptest.NewRecorder()
+
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.post.validation_failed", int64(1))
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(400, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"errors": {
+				"identityId": [
+					"The identityId field is required",
+					"The identityId field must be numeric",
+					"The identityId field must be minimum 1 char"
+				],
+				"skinId": [
+					"The skinId field is required",
+					"The skinId field must be numeric",
+					"The skinId field must be minimum 1 char"
+				],
+				"username": [
+					"The username field is required"
+				],
+				"uuid": [
+					"The uuid field is required",
+					"The uuid field must contain valid UUID"
+				],
+				"url": [
+					"One of url or skin should be provided, but not both"
+				],
+				"skin": [
+					"One of url or skin should be provided, but not both"
+				],
+				"mojangSignature": [
+					"The mojangSignature field is required"
+				]
+			}
+		}`, string(response))
+	})
+
+	t.Run("Perform request without authorization", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		req := httptest.NewRequest("POST", "http://chrly/api/skins", nil)
+		req.Header.Add("Authorization", "Bearer invalid.jwt.token")
+		w := httptest.NewRecorder()
+
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(&auth.Unauthorized{Reason: "Cannot parse passed JWT token"})
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.failed", int64(1))
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(403, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"error": "Cannot parse passed JWT token"
+		}`, string(response))
+	})
 }

-func TestConfig_PostSkin_Unauthorized(t *testing.T) {
-	assert := testify.New(t)
+func TestConfig_DeleteSkinByUserId(t *testing.T) {
+	t.Run("Delete skin by its identity id", func(t *testing.T) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	req := httptest.NewRequest("POST", "http://skinsystem.ely.by/api/skins", nil)
-	req.Header.Add("Authorization", "Bearer invalid.jwt.token")
-	w := httptest.NewRecorder()
+		req := httptest.NewRequest("DELETE", "http://chrly/api/skins/id:1", nil)
+		w := httptest.NewRecorder()

-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(&auth.Unauthorized{"Cannot parse passed JWT token"})
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.failed", int64(1))
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
+		mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.success", int64(1))

-	config.CreateHandler().ServeHTTP(w, req)
+		config.CreateHandler().ServeHTTP(w, req)

-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(403, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"error": "Cannot parse passed JWT token"
-	}`, string(response))
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(204, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Empty(response)
+	})
+
+	t.Run("Try to remove not exists identity id", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		req := httptest.NewRequest("DELETE", "http://chrly/api/skins/id:2", nil)
+		w := httptest.NewRecorder()
+
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUserId(2).Return(nil, &db.SkinNotFoundError{Who: "unknown"})
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.not_found", int64(1))
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(404, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`[
+			"Cannot find record for requested user id"
+		]`, string(response))
+	})
 }

-func TestConfig_DeleteSkinByUserId_Success(t *testing.T) {
-	assert := testify.New(t)
+func TestConfig_DeleteSkinByUsername(t *testing.T) {
+	t.Run("Delete skin by its identity username", func(t *testing.T) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/id:1", nil)
-	w := httptest.NewRecorder()
+		req := httptest.NewRequest("DELETE", "http://chrly/api/skins/mock_user", nil)
+		w := httptest.NewRecorder()

-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUserId(1).Return(createSkinModel("mock_user", false), nil)
-	mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.success", int64(1))
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+		mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.success", int64(1))

-	config.CreateHandler().ServeHTTP(w, req)
+		config.CreateHandler().ServeHTTP(w, req)

-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(204, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.Empty(response)
-}
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(204, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Empty(response)
+	})

-func TestConfig_DeleteSkinByUserId_NotFound(t *testing.T) {
-	assert := testify.New(t)
+	t.Run("Try to remove not exists identity username", func(t *testing.T) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/id:2", nil)
-	w := httptest.NewRecorder()
+		req := httptest.NewRequest("DELETE", "http://chrly/api/skins/mock_user_2", nil)
+		w := httptest.NewRecorder()

-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUserId(2).Return(nil, &db.SkinNotFoundError{"unknown"})
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.not_found", int64(1))
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
+		mocks.Skins.EXPECT().FindByUsername("mock_user_2").Return(nil, &db.SkinNotFoundError{Who: "mock_user_2"})
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("api.skins.delete.not_found", int64(1))

-	config.CreateHandler().ServeHTTP(w, req)
+		config.CreateHandler().ServeHTTP(w, req)

-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(404, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`[
-		"Cannot find record for requested user id"
-	]`, string(response))
-}
-
-func TestConfig_DeleteSkinByUsername_Success(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/mock_user", nil)
-	w := httptest.NewRecorder()
-
-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	mocks.Skins.EXPECT().RemoveByUserId(1).Return(nil)
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.success", int64(1))
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(204, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.Empty(response)
-}
-
-func TestConfig_DeleteSkinByUsername_NotFound(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	req := httptest.NewRequest("DELETE", "http://skinsystem.ely.by/api/skins/mock_user_2", nil)
-	w := httptest.NewRecorder()
-
-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(nil)
-	mocks.Skins.EXPECT().FindByUsername("mock_user_2").Return(nil, &db.SkinNotFoundError{"mock_user_2"})
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.success", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.request", int64(1))
-	mocks.Log.EXPECT().IncCounter("api.skins.delete.not_found", int64(1))
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(404, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`[
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(404, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`[
 		"Cannot find record for requested username"
 	]`, string(response))
+	})
 }

-func TestConfig_Authenticate_SignatureKeyNotSet(t *testing.T) {
-	assert := testify.New(t)
+func TestConfig_Authenticate(t *testing.T) {
+	t.Run("Test behavior when signing key is not set", func(t *testing.T) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	req := httptest.NewRequest("POST", "http://localhost", nil)
-	w := httptest.NewRecorder()
+		req := httptest.NewRequest("POST", "http://localhost", nil)
+		w := httptest.NewRecorder()

-	mocks.Auth.EXPECT().Check(gomock.Any()).Return(&auth.Unauthorized{"signing key not available"})
-	mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
-	mocks.Log.EXPECT().IncCounter("authentication.failed", int64(1))
+		mocks.Auth.EXPECT().Check(gomock.Any()).Return(&auth.Unauthorized{Reason: "signing key not available"})
+		mocks.Log.EXPECT().IncCounter("authentication.challenge", int64(1))
+		mocks.Log.EXPECT().IncCounter("authentication.failed", int64(1))

-	res := config.Authenticate(http.HandlerFunc(func (resp http.ResponseWriter, req *http.Request) {}))
-	res.ServeHTTP(w, req)
+		res := config.AuthenticationMiddleware(http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {}))
+		res.ServeHTTP(w, req)

-	resp := w.Result()
-	defer resp.Body.Close()
-	assert.Equal(403, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"error": "signing key not available"
-	}`, string(response))
+		resp := w.Result()
+		defer resp.Body.Close()
+		assert.Equal(403, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"error": "signing key not available"
+		}`, string(response))
+	})
 }

 // base64 https://github.com/mathiasbynens/small/blob/0ca3c51/png-transparent.png
--- a/http/cape.go
+++ b/http/cape.go
@@ -14,13 +14,26 @@ func (cfg *Config) Cape(response http.ResponseWriter, request *http.Request) {

 	username := parseUsername(mux.Vars(request)["username"])
 	rec, err := cfg.CapesRepo.FindByUsername(username)
-	if err != nil {
-		http.Redirect(response, request, "http://skins.minecraft.net/MinecraftCloaks/" + username + ".png", 301)
+	if err == nil {
+		request.Header.Set("Content-Type", "image/png")
+		_, _ = io.Copy(response, rec.File)
 		return
 	}

-	request.Header.Set("Content-Type", "image/png")
-	io.Copy(response, rec.File)
+	mojangTextures := <-cfg.MojangTexturesQueue.GetTexturesForUsername(username)
+	if mojangTextures == nil {
+		response.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	texturesProp := mojangTextures.DecodeTextures()
+	cape := texturesProp.Textures.Cape
+	if cape == nil {
+		response.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	http.Redirect(response, request, cape.Url, 301)
 }

 func (cfg *Config) CapeGET(response http.ResponseWriter, request *http.Request) {
--- a/http/cape_test.go
+++ b/http/cape_test.go
@@ -5,6 +5,7 @@ import (
 	"image"
 	"image/png"
 	"io/ioutil"
+	"net/http"
 	"net/http/httptest"
 	"testing"

@@ -15,123 +16,147 @@ import (
 	"github.com/elyby/chrly/model"
 )

+type capesTestCase struct {
+	Name                 string
+	RequestUrl           string
+	ExpectedLogKey       string
+	ExistsInLocalStorage bool
+	ExistsInMojang       bool
+	HasCapeInMojangResp  bool
+	AssertResponse       func(assert *testify.Assertions, resp *http.Response)
+}
+
+var capesTestCases = []*capesTestCase{
+	{
+		Name: "Obtain cape for known username",
+		ExistsInLocalStorage: true,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(200, resp.StatusCode)
+			responseData, _ := ioutil.ReadAll(resp.Body)
+			assert.Equal(createCape(), responseData)
+			assert.Equal("image/png", resp.Header.Get("Content-Type"))
+		},
+	},
+	{
+		Name: "Obtain cape for unknown username that exists in Mojang and has a cape",
+		ExistsInLocalStorage: false,
+		ExistsInMojang: true,
+		HasCapeInMojangResp: true,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(301, resp.StatusCode)
+			assert.Equal("http://mojang/cape.png", resp.Header.Get("Location"))
+		},
+	},
+	{
+		Name: "Obtain cape for unknown username that exists in Mojang, but don't has a cape",
+		ExistsInLocalStorage: false,
+		ExistsInMojang: true,
+		HasCapeInMojangResp: false,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(404, resp.StatusCode)
+		},
+	},
+	{
+		Name: "Obtain cape for unknown username that doesn't exists in Mojang",
+		ExistsInLocalStorage: false,
+		ExistsInMojang: false,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(404, resp.StatusCode)
+		},
+	},
+}
+
 func TestConfig_Cape(t *testing.T) {
-	assert := testify.New(t)
+	performTest := func(t *testing.T, testCase *capesTestCase) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	cape := createCape()
+		mocks.Log.EXPECT().IncCounter(testCase.ExpectedLogKey, int64(1))
+		if testCase.ExistsInLocalStorage {
+			mocks.Capes.EXPECT().FindByUsername("mock_username").Return(&model.Cape{
+				File: bytes.NewReader(createCape()),
+			}, nil)
+		} else {
+			mocks.Capes.EXPECT().FindByUsername("mock_username").Return(nil, &db.CapeNotFoundError{Who: "mock_username"})
+		}

-	mocks.Capes.EXPECT().FindByUsername("mocked_username").Return(&model.Cape{
-		File: bytes.NewReader(cape),
-	}, nil)
-	mocks.Log.EXPECT().IncCounter("capes.request", int64(1))
+		if testCase.ExistsInMojang {
+			textures := createTexturesResponse(false, testCase.HasCapeInMojangResp)
+			mocks.Queue.On("GetTexturesForUsername", "mock_username").Return(textures)
+		} else {
+			mocks.Queue.On("GetTexturesForUsername", "mock_username").Return(nil)
+		}

-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks/mocked_username", nil)
-	w := httptest.NewRecorder()
+		req := httptest.NewRequest("GET", testCase.RequestUrl, nil)
+		w := httptest.NewRecorder()

-	config.CreateHandler().ServeHTTP(w, req)
+		config.CreateHandler().ServeHTTP(w, req)

-	resp := w.Result()
-	assert.Equal(200, resp.StatusCode)
-	responseData, _ := ioutil.ReadAll(resp.Body)
-	assert.Equal(cape, responseData)
-	assert.Equal("image/png", resp.Header.Get("Content-Type"))
-}
+		resp := w.Result()
+		testCase.AssertResponse(assert, resp)
+	}

-func TestConfig_Cape2(t *testing.T) {
-	assert := testify.New(t)
+	t.Run("Normal API", func(t *testing.T) {
+		for _, testCase := range capesTestCases {
+			testCase.RequestUrl = "http://chrly/cloaks/mock_username"
+			testCase.ExpectedLogKey = "capes.request"
+			t.Run(testCase.Name, func(t *testing.T) {
+				performTest(t, testCase)
+			})
+		}
+	})

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+	t.Run("GET fallback API", func(t *testing.T) {
+		for _, testCase := range capesTestCases {
+			testCase.RequestUrl = "http://chrly/cloaks?name=mock_username"
+			testCase.ExpectedLogKey = "capes.get_request"
+			t.Run(testCase.Name, func(t *testing.T) {
+				performTest(t, testCase)
+			})
+		}

-	config, mocks := setupMocks(ctrl)
+		t.Run("Should trim trailing slash", func(t *testing.T) {
+			assert := testify.New(t)

-	mocks.Capes.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{"notch"})
-	mocks.Log.EXPECT().IncCounter("capes.request", int64(1))
+			req := httptest.NewRequest("GET", "http://chrly/cloaks/?name=notch", nil)
+			w := httptest.NewRecorder()

-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks/notch", nil)
-	w := httptest.NewRecorder()
+			(&Config{}).CreateHandler().ServeHTTP(w, req)

-	config.CreateHandler().ServeHTTP(w, req)
+			resp := w.Result()
+			assert.Equal(301, resp.StatusCode)
+			assert.Equal("http://chrly/cloaks?name=notch", resp.Header.Get("Location"))
+		})

-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://skins.minecraft.net/MinecraftCloaks/notch.png", resp.Header.Get("Location"))
-}
+		t.Run("Return error when name is not provided", func(t *testing.T) {
+			assert := testify.New(t)

-func TestConfig_CapeGET(t *testing.T) {
-	assert := testify.New(t)
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+			config, mocks := setupMocks(ctrl)
+			mocks.Log.EXPECT().IncCounter("capes.get_request", int64(1))

-	config, mocks := setupMocks(ctrl)
+			req := httptest.NewRequest("GET", "http://chrly/cloaks", nil)
+			w := httptest.NewRecorder()

-	cape := createCape()
+			config.CreateHandler().ServeHTTP(w, req)

-	mocks.Capes.EXPECT().FindByUsername("mocked_username").Return(&model.Cape{
-		File: bytes.NewReader(cape),
-	}, nil)
-	mocks.Log.EXPECT().IncCounter("capes.request", int64(1)).Times(0)
-	mocks.Log.EXPECT().IncCounter("capes.get_request", int64(1))
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks?name=mocked_username", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(200, resp.StatusCode)
-	responseData, _ := ioutil.ReadAll(resp.Body)
-	assert.Equal(cape, responseData)
-	assert.Equal("image/png", resp.Header.Get("Content-Type"))
-}
-
-func TestConfig_CapeGET2(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	mocks.Capes.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{"notch"})
-	mocks.Log.EXPECT().IncCounter("capes.request", int64(1)).Times(0)
-	mocks.Log.EXPECT().IncCounter("capes.get_request", int64(1))
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks?name=notch", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://skins.minecraft.net/MinecraftCloaks/notch.png", resp.Header.Get("Location"))
-}
-
-func TestConfig_CapeGET3(t *testing.T) {
-	assert := testify.New(t)
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/cloaks/?name=notch", nil)
-	w := httptest.NewRecorder()
-
-	(&Config{}).CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://skinsystem.ely.by/cloaks?name=notch", resp.Header.Get("Location"))
+			resp := w.Result()
+			assert.Equal(400, resp.StatusCode)
+		})
+	})
 }

 // Cape md5: 424ff79dce9940af89c28ad80de8aaad
 func createCape() []byte {
 	img := image.NewAlpha(image.Rect(0, 0, 64, 32))
 	writer := &bytes.Buffer{}
-	png.Encode(writer, img)
-
+	_ = png.Encode(writer, img)
 	pngBytes, _ := ioutil.ReadAll(writer)

 	return pngBytes
--- a/http/http.go
+++ b/http/http.go
@@ -19,10 +19,11 @@ import (
 type Config struct {
 	ListenSpec string

-	SkinsRepo interfaces.SkinsRepository
-	CapesRepo interfaces.CapesRepository
-	Logger    wd.Watchdog
-	Auth      interfaces.AuthChecker
+	SkinsRepo           interfaces.SkinsRepository
+	CapesRepo           interfaces.CapesRepository
+	MojangTexturesQueue interfaces.MojangTexturesQueue
+	Logger              wd.Watchdog
+	Auth                interfaces.AuthChecker
 }

 func (cfg *Config) Run() error {
@@ -59,9 +60,11 @@ func (cfg *Config) CreateHandler() http.Handler {
 	router.HandleFunc("/skins", cfg.SkinGET).Methods("GET")
 	router.HandleFunc("/cloaks", cfg.CapeGET).Methods("GET")
 	// API
-	router.Handle("/api/skins", cfg.Authenticate(http.HandlerFunc(cfg.PostSkin))).Methods("POST")
-	router.Handle("/api/skins/id:{id:[0-9]+}", cfg.Authenticate(http.HandlerFunc(cfg.DeleteSkinByUserId))).Methods("DELETE")
-	router.Handle("/api/skins/{username}", cfg.Authenticate(http.HandlerFunc(cfg.DeleteSkinByUsername))).Methods("DELETE")
+	apiRouter := router.PathPrefix("/api").Subrouter()
+	apiRouter.Use(cfg.AuthenticationMiddleware)
+	apiRouter.Handle("/skins", http.HandlerFunc(cfg.PostSkin)).Methods("POST")
+	apiRouter.Handle("/skins/id:{id:[0-9]+}", http.HandlerFunc(cfg.DeleteSkinByUserId)).Methods("DELETE")
+	apiRouter.Handle("/skins/{username}", http.HandlerFunc(cfg.DeleteSkinByUsername)).Methods("DELETE")
 	// 404
 	router.NotFoundHandler = http.HandlerFunc(cfg.NotFound)

--- a/http/http_test.go
+++ b/http/http_test.go
@@ -2,7 +2,11 @@ package http

 import (
 	"testing"
+	"time"

+	"github.com/elyby/chrly/api/mojang"
+
+	"github.com/elyby/chrly/tests"
 	"github.com/golang/mock/gomock"
 	testify "github.com/stretchr/testify/assert"

@@ -19,6 +23,7 @@ func TestParseUsername(t *testing.T) {
 type mocks struct {
 	Skins *mock_interfaces.MockSkinsRepository
 	Capes *mock_interfaces.MockCapesRepository
+	Queue *tests.MojangTexturesQueueMock
 	Auth  *mock_interfaces.MockAuthChecker
 	Log   *mock_wd.MockWatchdog
 }
@@ -31,16 +36,54 @@ func setupMocks(ctrl *gomock.Controller) (
 	capesRepo := mock_interfaces.NewMockCapesRepository(ctrl)
 	authChecker := mock_interfaces.NewMockAuthChecker(ctrl)
 	wd := mock_wd.NewMockWatchdog(ctrl)
+	texturesQueue := &tests.MojangTexturesQueueMock{}

 	return &Config{
-		SkinsRepo: skinsRepo,
-		CapesRepo: capesRepo,
-		Auth:      authChecker,
-		Logger:    wd,
+		SkinsRepo:           skinsRepo,
+		CapesRepo:           capesRepo,
+		Auth:                authChecker,
+		MojangTexturesQueue: texturesQueue,
+		Logger:              wd,
 	}, &mocks{
 		Skins: skinsRepo,
 		Capes: capesRepo,
 		Auth:  authChecker,
+		Queue: texturesQueue,
 		Log:   wd,
 	}
 }
+
+func createTexturesResponse(includeSkin bool, includeCape bool) *mojang.SignedTexturesResponse {
+	timeZone, _ := time.LoadLocation("Europe/Minsk")
+	textures := &mojang.TexturesProp{
+		Timestamp: time.Date(2019, 4, 27, 23, 56, 12, 0, timeZone).Unix(),
+		ProfileID: "00000000000000000000000000000000",
+		ProfileName: "mock_user",
+		Textures: &mojang.TexturesResponse{},
+	}
+
+	if includeSkin {
+		textures.Textures.Skin = &mojang.SkinTexturesResponse{
+			Url: "http://mojang/skin.png",
+		}
+	}
+
+	if includeCape {
+		textures.Textures.Cape = &mojang.CapeTexturesResponse{
+			Url: "http://mojang/cape.png",
+		}
+	}
+
+	response := &mojang.SignedTexturesResponse{
+		Id: "00000000000000000000000000000000",
+		Name: "mock_user",
+		Props: []*mojang.Property{
+			{
+				Name: "textures",
+				Value: mojang.EncodeTextures(textures),
+			},
+		},
+	}
+
+	return response
+}
--- a/http/signed_textures.go
+++ b/http/signed_textures.go
@@ -6,47 +6,44 @@ import (
 	"strings"

 	"github.com/gorilla/mux"
+
+	"github.com/elyby/chrly/api/mojang"
 )

-type signedTexturesResponse struct {
-	Id    string     `json:"id"`
-	Name  string     `json:"name"`
-	Props []property `json:"properties"`
-}
-
-type property struct {
-	Name      string `json:"name"`
-	Signature string `json:"signature,omitempty"`
-	Value     string `json:"value"`
-}
-
 func (cfg *Config) SignedTextures(response http.ResponseWriter, request *http.Request) {
 	cfg.Logger.IncCounter("signed_textures.request", 1)
 	username := parseUsername(mux.Vars(request)["username"])

+	var responseData *mojang.SignedTexturesResponse
+
 	rec, err := cfg.SkinsRepo.FindByUsername(username)
-	if err != nil || rec.SkinId == 0 || rec.MojangTextures == "" {
+	if err == nil && rec.SkinId != 0 && rec.MojangTextures != "" {
+		responseData = &mojang.SignedTexturesResponse{
+			Id:   strings.Replace(rec.Uuid, "-", "", -1),
+			Name: rec.Username,
+			Props: []*mojang.Property{
+				{
+					Name:      "textures",
+					Signature: rec.MojangSignature,
+					Value:     rec.MojangTextures,
+				},
+			},
+		}
+	} else if request.URL.Query().Get("proxy") != "" {
+		responseData = <-cfg.MojangTexturesQueue.GetTexturesForUsername(username)
+	}
+
+	if responseData == nil {
 		response.WriteHeader(http.StatusNoContent)
 		return
 	}

-	responseData:= signedTexturesResponse{
-		Id: strings.Replace(rec.Uuid, "-", "", -1),
-		Name: rec.Username,
-		Props: []property{
-			{
-				Name: "textures",
-				Signature: rec.MojangSignature,
-				Value: rec.MojangTextures,
-			},
-			{
-				Name: "chrly",
-				Value: "how do you tame a horse in Minecraft?",
-			},
-		},
-	}
+	responseData.Props = append(responseData.Props, &mojang.Property{
+		Name:  "chrly",
+		Value: "how do you tame a horse in Minecraft?",
+	})

-	responseJson,_ := json.Marshal(responseData)
+	responseJson, _ := json.Marshal(responseData)
 	response.Header().Set("Content-Type", "application/json")
 	response.Write(responseJson)
 }
--- a/http/signed_textures_test.go
+++ b/http/signed_textures_test.go
@@ -12,60 +12,130 @@ import (
 )

 func TestConfig_SignedTextures(t *testing.T) {
-	assert := testify.New(t)
+	t.Run("Obtain signed textures for exists user", func(t *testing.T) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)

-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/signed/mock_user", nil)
-	w := httptest.NewRecorder()
+		req := httptest.NewRequest("GET", "http://chrly/textures/signed/mock_user", nil)
+		w := httptest.NewRecorder()

-	config.CreateHandler().ServeHTTP(w, req)
+		config.CreateHandler().ServeHTTP(w, req)

-	resp := w.Result()
-	assert.Equal(200, resp.StatusCode)
-	assert.Equal("application/json", resp.Header.Get("Content-Type"))
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"id": "0f657aa8bfbe415db7005750090d3af3",
-		"name": "mock_user",
-		"properties": [
-			{
-				"name": "textures",
-				"signature": "mocked signature",
-				"value": "mocked textures base64"
-			},
-			{
-				"name": "chrly",
-				"value": "how do you tame a horse in Minecraft?"
-			}
-		]
-	}`, string(response))
-}
-
-func TestConfig_SignedTextures2(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{})
-	mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/signed/mock_user", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(204, resp.StatusCode)
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.Equal("", string(response))
+		resp := w.Result()
+		assert.Equal(200, resp.StatusCode)
+		assert.Equal("application/json", resp.Header.Get("Content-Type"))
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"id": "0f657aa8bfbe415db7005750090d3af3",
+			"name": "mock_user",
+			"properties": [
+				{
+					"name": "textures",
+					"signature": "mocked signature",
+					"value": "mocked textures base64"
+				},
+				{
+					"name": "chrly",
+					"value": "how do you tame a horse in Minecraft?"
+				}
+			]
+		}`, string(response))
+	})
+
+	t.Run("Obtain signed textures for not exists user", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))
+
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{})
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/signed/mock_user", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(204, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Equal("", string(response))
+	})
+
+	t.Run("Obtain signed textures for exists user, but without signed textures", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		skinModel := createSkinModel("mock_user", false)
+		skinModel.MojangTextures = ""
+		skinModel.MojangSignature = ""
+
+		mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(skinModel, nil)
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/signed/mock_user", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(204, resp.StatusCode)
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.Equal("", string(response))
+	})
+
+	t.Run("Obtain signed textures for exists user, but without signed textures", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		skinModel := createSkinModel("mock_user", false)
+		skinModel.MojangTextures = ""
+		skinModel.MojangSignature = ""
+
+		mocks.Log.EXPECT().IncCounter("signed_textures.request", int64(1))
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(skinModel, nil)
+		mocks.Queue.On("GetTexturesForUsername", "mock_user").Once().Return(createTexturesResponse(true, false))
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/signed/mock_user?proxy=true", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(200, resp.StatusCode)
+		assert.Equal("application/json", resp.Header.Get("Content-Type"))
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"id": "00000000000000000000000000000000",
+			"name": "mock_user",
+			"properties": [
+				{
+					"name": "textures",
+					"value": "eyJ0aW1lc3RhbXAiOjE1NTYzOTg1NzIsInByb2ZpbGVJZCI6IjAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwIiwicHJvZmlsZU5hbWUiOiJtb2NrX3VzZXIiLCJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly9tb2phbmcvc2tpbi5wbmcifX19"
+				},
+				{
+					"name": "chrly",
+					"value": "how do you tame a horse in Minecraft?"
+				}
+			]
+		}`, string(response))
+	})
 }
--- a/http/skin.go
+++ b/http/skin.go
@@ -13,12 +13,25 @@ func (cfg *Config) Skin(response http.ResponseWriter, request *http.Request) {

 	username := parseUsername(mux.Vars(request)["username"])
 	rec, err := cfg.SkinsRepo.FindByUsername(username)
-	if err != nil || rec.SkinId == 0 {
-		http.Redirect(response, request, "http://skins.minecraft.net/MinecraftSkins/" + username + ".png", 301)
+	if err == nil && rec.SkinId != 0 {
+		http.Redirect(response, request, rec.Url, 301)
 		return
 	}

-	http.Redirect(response, request, rec.Url, 301)
+	mojangTextures := <-cfg.MojangTexturesQueue.GetTexturesForUsername(username)
+	if mojangTextures == nil {
+		response.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	texturesProp := mojangTextures.DecodeTextures()
+	skin := texturesProp.Textures.Skin
+	if skin == nil {
+		response.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	http.Redirect(response, request, skin.Url, 301)
 }

 func (cfg *Config) SkinGET(response http.ResponseWriter, request *http.Request) {
--- a/http/skin_test.go
+++ b/http/skin_test.go
@@ -1,6 +1,7 @@
 package http

 import (
+	"net/http"
 	"net/http/httptest"
 	"testing"

@@ -11,113 +12,145 @@ import (
 	"github.com/elyby/chrly/model"
 )

+type skinsTestCase struct {
+	Name                 string
+	RequestUrl           string
+	ExpectedLogKey       string
+	ExistsInLocalStorage bool
+	ExistsInMojang       bool
+	HasSkinInMojangResp  bool
+	AssertResponse       func(assert *testify.Assertions, resp *http.Response)
+}
+
+var skinsTestCases = []*skinsTestCase{
+	{
+		Name:                 "Obtain skin for known username",
+		ExistsInLocalStorage: true,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(301, resp.StatusCode)
+			assert.Equal("http://chrly/skin.png", resp.Header.Get("Location"))
+		},
+	},
+	{
+		Name:                 "Obtain skin for unknown username that exists in Mojang and has a cape",
+		ExistsInLocalStorage: false,
+		ExistsInMojang:       true,
+		HasSkinInMojangResp:  true,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(301, resp.StatusCode)
+			assert.Equal("http://mojang/skin.png", resp.Header.Get("Location"))
+		},
+	},
+	{
+		Name:                 "Obtain skin for unknown username that exists in Mojang, but don't has a cape",
+		ExistsInLocalStorage: false,
+		ExistsInMojang:       true,
+		HasSkinInMojangResp:  false,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(404, resp.StatusCode)
+		},
+	},
+	{
+		Name:                 "Obtain skin for unknown username that doesn't exists in Mojang",
+		ExistsInLocalStorage: false,
+		ExistsInMojang:       false,
+		AssertResponse: func(assert *testify.Assertions, resp *http.Response) {
+			assert.Equal(404, resp.StatusCode)
+		},
+	},
+}
+
 func TestConfig_Skin(t *testing.T) {
-	assert := testify.New(t)
+	performTest := func(t *testing.T, testCase *skinsTestCase) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	mocks.Log.EXPECT().IncCounter("skins.request", int64(1))
+		mocks.Log.EXPECT().IncCounter(testCase.ExpectedLogKey, int64(1))
+		if testCase.ExistsInLocalStorage {
+			mocks.Skins.EXPECT().FindByUsername("mock_username").Return(createSkinModel("mock_username", false), nil)
+		} else {
+			mocks.Skins.EXPECT().FindByUsername("mock_username").Return(nil, &db.SkinNotFoundError{Who: "mock_username"})
+		}

-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins/mock_user", nil)
-	w := httptest.NewRecorder()
+		if testCase.ExistsInMojang {
+			textures := createTexturesResponse(testCase.HasSkinInMojangResp, true)
+			mocks.Queue.On("GetTexturesForUsername", "mock_username").Return(textures)
+		} else {
+			mocks.Queue.On("GetTexturesForUsername", "mock_username").Return(nil)
+		}

-	config.CreateHandler().ServeHTTP(w, req)
+		req := httptest.NewRequest("GET", testCase.RequestUrl, nil)
+		w := httptest.NewRecorder()

-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://ely.by/minecraft/skins/skin.png", resp.Header.Get("Location"))
-}
+		config.CreateHandler().ServeHTTP(w, req)

-func TestConfig_Skin2(t *testing.T) {
-	assert := testify.New(t)
+		resp := w.Result()
+		testCase.AssertResponse(assert, resp)
+	}

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+	t.Run("Normal API", func(t *testing.T) {
+		for _, testCase := range skinsTestCases {
+			testCase.RequestUrl = "http://chrly/skins/mock_username"
+			testCase.ExpectedLogKey = "skins.request"
+			t.Run(testCase.Name, func(t *testing.T) {
+				performTest(t, testCase)
+			})
+		}
+	})

-	config, mocks := setupMocks(ctrl)
+	t.Run("GET fallback API", func(t *testing.T) {
+		for _, testCase := range skinsTestCases {
+			testCase.RequestUrl = "http://chrly/skins?name=mock_username"
+			testCase.ExpectedLogKey = "skins.get_request"
+			t.Run(testCase.Name, func(t *testing.T) {
+				performTest(t, testCase)
+			})
+		}

-	mocks.Skins.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{"notch"})
-	mocks.Log.EXPECT().IncCounter("skins.request", int64(1))
+		t.Run("Should trim trailing slash", func(t *testing.T) {
+			assert := testify.New(t)

-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins/notch", nil)
-	w := httptest.NewRecorder()
+			req := httptest.NewRequest("GET", "http://chrly/skins/?name=notch", nil)
+			w := httptest.NewRecorder()

-	config.CreateHandler().ServeHTTP(w, req)
+			(&Config{}).CreateHandler().ServeHTTP(w, req)

-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://skins.minecraft.net/MinecraftSkins/notch.png", resp.Header.Get("Location"))
-}
+			resp := w.Result()
+			assert.Equal(301, resp.StatusCode)
+			assert.Equal("http://chrly/skins?name=notch", resp.Header.Get("Location"))
+		})

-func TestConfig_SkinGET(t *testing.T) {
-	assert := testify.New(t)
+		t.Run("Return error when name is not provided", func(t *testing.T) {
+			assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+			ctrl := gomock.NewController(t)
+			defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+			config, mocks := setupMocks(ctrl)
+			mocks.Log.EXPECT().IncCounter("skins.get_request", int64(1))

-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	mocks.Log.EXPECT().IncCounter("skins.get_request", int64(1))
-	mocks.Log.EXPECT().IncCounter("skins.request", int64(1)).Times(0)
+			req := httptest.NewRequest("GET", "http://chrly/skins", nil)
+			w := httptest.NewRecorder()

-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins?name=mock_user", nil)
-	w := httptest.NewRecorder()
+			config.CreateHandler().ServeHTTP(w, req)

-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://ely.by/minecraft/skins/skin.png", resp.Header.Get("Location"))
-}
-
-func TestConfig_SkinGET2(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	mocks.Skins.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{"notch"})
-	mocks.Log.EXPECT().IncCounter("skins.get_request", int64(1))
-	mocks.Log.EXPECT().IncCounter("skins.request", int64(1)).Times(0)
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins?name=notch", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://skins.minecraft.net/MinecraftSkins/notch.png", resp.Header.Get("Location"))
-}
-
-func TestConfig_SkinGET3(t *testing.T) {
-	assert := testify.New(t)
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/skins/?name=notch", nil)
-	w := httptest.NewRecorder()
-
-	(&Config{}).CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(301, resp.StatusCode)
-	assert.Equal("http://skinsystem.ely.by/skins?name=notch", resp.Header.Get("Location"))
+			resp := w.Result()
+			assert.Equal(400, resp.StatusCode)
+		})
+	})
 }

 func createSkinModel(username string, isSlim bool) *model.Skin {
 	return &model.Skin{
 		UserId:          1,
 		Username:        username,
-		Uuid:            "0f657aa8-bfbe-415d-b700-5750090d3af3",
+		Uuid:            "0f657aa8-bfbe-415d-b700-5750090d3af3", // Use non nil UUID to pass validation in api tests
 		SkinId:          1,
-		Hash:            "55d2a8848764f5ff04012cdb093458bd",
-		Url:             "http://ely.by/minecraft/skins/skin.png",
+		Url:             "http://chrly/skin.png",
 		MojangTextures:  "mocked textures base64",
 		MojangSignature: "mocked signature",
 		IsSlim:          isSlim,
--- a/http/textures.go
+++ b/http/textures.go
@@ -1,102 +1,61 @@
 package http

 import (
-	"crypto/md5"
-	"encoding/hex"
 	"encoding/json"
-	"io"
 	"net/http"
-	"strconv"
-	"time"

 	"github.com/gorilla/mux"

-	"github.com/elyby/chrly/model"
+	"github.com/elyby/chrly/api/mojang"
 )

-type texturesResponse struct {
-	Skin *Skin `json:"SKIN"`
-	Cape *Cape `json:"CAPE,omitempty"`
-}
-
-type Skin struct {
-	Url      string        `json:"url"`
-	Hash     string        `json:"hash"`
-	Metadata *skinMetadata `json:"metadata,omitempty"`
-}
-
-type skinMetadata struct {
-	Model string `json:"model"`
-}
-
-type Cape struct {
-	Url  string `json:"url"`
-	Hash string `json:"hash"`
-}
-
 func (cfg *Config) Textures(response http.ResponseWriter, request *http.Request) {
 	cfg.Logger.IncCounter("textures.request", 1)
 	username := parseUsername(mux.Vars(request)["username"])

-	skin, err := cfg.SkinsRepo.FindByUsername(username)
-	if err != nil || skin.SkinId == 0 {
-		if skin == nil {
-			skin = &model.Skin{}
+	var textures *mojang.TexturesResponse
+	skin, skinErr := cfg.SkinsRepo.FindByUsername(username)
+	_, capeErr := cfg.CapesRepo.FindByUsername(username)
+	if (skinErr == nil && skin.SkinId != 0) || capeErr == nil {
+		textures = &mojang.TexturesResponse{}
+
+		if skinErr == nil && skin.SkinId != 0 {
+			skinTextures := &mojang.SkinTexturesResponse{
+				Url: skin.Url,
+			}
+
+			if skin.IsSlim {
+				skinTextures.Metadata = &mojang.SkinTexturesMetadata{
+					Model: "slim",
+				}
+			}
+
+			textures.Skin = skinTextures
 		}

-		skin.Url = "http://skins.minecraft.net/MinecraftSkins/" + username + ".png"
-		skin.Hash = string(buildNonElyTexturesHash(username))
-	}
-
-	textures := texturesResponse{
-		Skin: &Skin{
-			Url:  skin.Url,
-			Hash: skin.Hash,
-		},
-	}
-
-	if skin.IsSlim {
-		textures.Skin.Metadata = &skinMetadata{
-			Model: "slim",
+		if capeErr == nil {
+			textures.Cape = &mojang.CapeTexturesResponse{
+				Url: request.URL.Scheme + "://" + request.Host + "/cloaks/" + username,
+			}
 		}
-	}
-
-	cape, err := cfg.CapesRepo.FindByUsername(username)
-	if err == nil {
-		var scheme string = "http://"
-		if request.TLS != nil {
-			scheme = "https://"
+	} else {
+		mojangTextures := <-cfg.MojangTexturesQueue.GetTexturesForUsername(username)
+		if mojangTextures == nil {
+			response.WriteHeader(http.StatusNoContent)
+			return
 		}

-		textures.Cape = &Cape{
-			Url:  scheme + request.Host + "/cloaks/" + username,
-			Hash: calculateCapeHash(cape),
+		texturesProp := mojangTextures.DecodeTextures()
+		if texturesProp == nil {
+			response.WriteHeader(http.StatusInternalServerError)
+			cfg.Logger.Error("Unable to find textures property")
+			return
 		}
+
+		textures = texturesProp.Textures
 	}

 	responseData, _ := json.Marshal(textures)
 	response.Header().Set("Content-Type", "application/json")
 	response.Write(responseData)
 }
-
-func calculateCapeHash(cape *model.Cape) string {
-	hasher := md5.New()
-	io.Copy(hasher, cape.File)
-
-	return hex.EncodeToString(hasher.Sum(nil))
-}
-
-func buildNonElyTexturesHash(username string) string {
-	hour := getCurrentHour()
-	hasher := md5.New()
-	hasher.Write([]byte("non-ely-" + strconv.FormatInt(hour, 10) + "-" + username))
-
-	return hex.EncodeToString(hasher.Sum(nil))
-}
-
-var timeNow = time.Now
-
-func getCurrentHour() int64 {
-	n := timeNow()
-	return time.Date(n.Year(), n.Month(), n.Day(), n.Hour(), 0, 0, 0, time.UTC).Unix()
-}
--- a/http/textures_test.go
+++ b/http/textures_test.go
@@ -5,7 +5,6 @@ import (
 	"io/ioutil"
 	"net/http/httptest"
 	"testing"
-	"time"

 	"github.com/golang/mock/gomock"
 	testify "github.com/stretchr/testify/assert"
@@ -15,152 +14,181 @@ import (
 )

 func TestConfig_Textures(t *testing.T) {
-	assert := testify.New(t)
+	t.Run("Obtain textures for exists user with only default skin", func(t *testing.T) {
+		assert := testify.New(t)

-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()

-	config, mocks := setupMocks(ctrl)
+		config, mocks := setupMocks(ctrl)

-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	mocks.Capes.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{"mock_user"})
-	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
+		mocks.Log.EXPECT().IncCounter("textures.request", int64(1))

-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/mock_user", nil)
-	w := httptest.NewRecorder()
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+		mocks.Capes.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{Who: "mock_user"})

-	config.CreateHandler().ServeHTTP(w, req)
+		req := httptest.NewRequest("GET", "http://chrly/textures/mock_user", nil)
+		w := httptest.NewRecorder()

-	resp := w.Result()
-	assert.Equal(200, resp.StatusCode)
-	assert.Equal("application/json", resp.Header.Get("Content-Type"))
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"SKIN": {
-			"url": "http://ely.by/minecraft/skins/skin.png",
-			"hash": "55d2a8848764f5ff04012cdb093458bd"
-		}
-	}`, string(response))
-}
+		config.CreateHandler().ServeHTTP(w, req)

-func TestConfig_Textures2(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", true), nil)
-	mocks.Capes.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{"mock_user"})
-	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/mock_user", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(200, resp.StatusCode)
-	assert.Equal("application/json", resp.Header.Get("Content-Type"))
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"SKIN": {
-			"url": "http://ely.by/minecraft/skins/skin.png",
-			"hash": "55d2a8848764f5ff04012cdb093458bd",
-			"metadata": {
-				"model": "slim"
+		resp := w.Result()
+		assert.Equal(200, resp.StatusCode)
+		assert.Equal("application/json", resp.Header.Get("Content-Type"))
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"SKIN": {
+				"url": "http://chrly/skin.png"
 			}
-		}
-	}`, string(response))
-}
-
-func TestConfig_Textures3(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
-	mocks.Capes.EXPECT().FindByUsername("mock_user").Return(&model.Cape{
-		File: bytes.NewReader(createCape()),
-	}, nil)
-	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/mock_user", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(200, resp.StatusCode)
-	assert.Equal("application/json", resp.Header.Get("Content-Type"))
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"SKIN": {
-			"url": "http://ely.by/minecraft/skins/skin.png",
-			"hash": "55d2a8848764f5ff04012cdb093458bd"
-		},
-		"CAPE": {
-			"url": "http://skinsystem.ely.by/cloaks/mock_user",
-			"hash": "424ff79dce9940af89c28ad80de8aaad"
-		}
-	}`, string(response))
-}
-
-func TestConfig_Textures4(t *testing.T) {
-	assert := testify.New(t)
-
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	config, mocks := setupMocks(ctrl)
-
-	mocks.Skins.EXPECT().FindByUsername("notch").Return(nil, &db.SkinNotFoundError{})
-	mocks.Capes.EXPECT().FindByUsername("notch").Return(nil, &db.CapeNotFoundError{})
-	mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
-	timeNow = func() time.Time {
-		return time.Date(2017, time.August, 20, 0, 15, 54, 0, time.UTC)
-	}
-
-	req := httptest.NewRequest("GET", "http://skinsystem.ely.by/textures/notch", nil)
-	w := httptest.NewRecorder()
-
-	config.CreateHandler().ServeHTTP(w, req)
-
-	resp := w.Result()
-	assert.Equal(200, resp.StatusCode)
-	assert.Equal("application/json", resp.Header.Get("Content-Type"))
-	response, _ := ioutil.ReadAll(resp.Body)
-	assert.JSONEq(`{
-		"SKIN": {
-			"url": "http://skins.minecraft.net/MinecraftSkins/notch.png",
-			"hash": "5923cf3f7fa170a279e4d7a9483cfc52"
-		}
-	}`, string(response))
-}
-
-func TestBuildNonElyTexturesHash(t *testing.T) {
-	assert := testify.New(t)
-	timeNow = func() time.Time {
-		return time.Date(2017, time.November, 30, 16, 15, 34, 0, time.UTC)
-	}
-
-	assert.Equal("686d788a5353cb636e8fdff727634d88", buildNonElyTexturesHash("username"), "Function should return fixed hash by username-time pair")
-	assert.Equal("fb876f761683a10accdb17d403cef64c", buildNonElyTexturesHash("another-username"), "Function should return fixed hash by username-time pair")
-
-	timeNow = func() time.Time {
-		return time.Date(2017, time.November, 30, 16, 20, 12, 0, time.UTC)
-	}
-
-	assert.Equal("686d788a5353cb636e8fdff727634d88", buildNonElyTexturesHash("username"), "Function should do not change it's value if hour the same")
-	assert.Equal("fb876f761683a10accdb17d403cef64c", buildNonElyTexturesHash("another-username"), "Function should return fixed hash by username-time pair")
-
-	timeNow = func() time.Time {
-		return time.Date(2017, time.November, 30, 17, 1, 3, 0, time.UTC)
-	}
-
-	assert.Equal("42277892fd24bc0ed86285b3bb8b8fad", buildNonElyTexturesHash("username"), "Function should change it's value if hour changed")
+		}`, string(response))
+	})
+
+	t.Run("Obtain textures for exists user with only slim skin", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
+
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", true), nil)
+		mocks.Capes.EXPECT().FindByUsername("mock_user").Return(nil, &db.CapeNotFoundError{Who: "mock_user"})
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/mock_user", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(200, resp.StatusCode)
+		assert.Equal("application/json", resp.Header.Get("Content-Type"))
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"SKIN": {
+				"url": "http://chrly/skin.png",
+				"metadata": {
+					"model": "slim"
+				}
+			}
+		}`, string(response))
+	})
+
+	t.Run("Obtain textures for exists user with only cape", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
+
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(nil, &db.SkinNotFoundError{Who: "mock_user"})
+		mocks.Capes.EXPECT().FindByUsername("mock_user").Return(&model.Cape{File: bytes.NewReader(createCape())}, nil)
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/mock_user", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(200, resp.StatusCode)
+		assert.Equal("application/json", resp.Header.Get("Content-Type"))
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"CAPE": {
+				"url": "http://chrly/cloaks/mock_user"
+			}
+		}`, string(response))
+	})
+
+	t.Run("Obtain textures for exists user with skin and cape", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
+
+		mocks.Skins.EXPECT().FindByUsername("mock_user").Return(createSkinModel("mock_user", false), nil)
+		mocks.Capes.EXPECT().FindByUsername("mock_user").Return(&model.Cape{File: bytes.NewReader(createCape())}, nil)
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/mock_user", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(200, resp.StatusCode)
+		assert.Equal("application/json", resp.Header.Get("Content-Type"))
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"SKIN": {
+				"url": "http://chrly/skin.png"
+			},
+			"CAPE": {
+				"url": "http://chrly/cloaks/mock_user"
+			}
+		}`, string(response))
+	})
+
+	t.Run("Obtain textures for not exists user that exists in Mojang", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
+
+		mocks.Skins.EXPECT().FindByUsername("mock_username").Return(nil, &db.SkinNotFoundError{})
+		mocks.Capes.EXPECT().FindByUsername("mock_username").Return(nil, &db.CapeNotFoundError{})
+		mocks.Queue.On("GetTexturesForUsername", "mock_username").Once().Return(createTexturesResponse(true, true))
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/mock_username", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(200, resp.StatusCode)
+		assert.Equal("application/json", resp.Header.Get("Content-Type"))
+		response, _ := ioutil.ReadAll(resp.Body)
+		assert.JSONEq(`{
+			"SKIN": {
+				"url": "http://mojang/skin.png"
+			},
+			"CAPE": {
+				"url": "http://mojang/cape.png"
+			}
+		}`, string(response))
+	})
+
+	t.Run("Obtain textures for not exists user that not exists in Mojang too", func(t *testing.T) {
+		assert := testify.New(t)
+
+		ctrl := gomock.NewController(t)
+		defer ctrl.Finish()
+
+		config, mocks := setupMocks(ctrl)
+
+		mocks.Log.EXPECT().IncCounter("textures.request", int64(1))
+
+		mocks.Skins.EXPECT().FindByUsername("mock_username").Return(nil, &db.SkinNotFoundError{})
+		mocks.Capes.EXPECT().FindByUsername("mock_username").Return(nil, &db.CapeNotFoundError{})
+		mocks.Queue.On("GetTexturesForUsername", "mock_username").Once().Return(nil)
+
+		req := httptest.NewRequest("GET", "http://chrly/textures/mock_username", nil)
+		w := httptest.NewRecorder()
+
+		config.CreateHandler().ServeHTTP(w, req)
+
+		resp := w.Result()
+		assert.Equal(204, resp.StatusCode)
+	})
 }
--- a/interfaces/repositories.go
+++ b/interfaces/repositories.go
@@ -1,6 +1,7 @@
 package interfaces

 import (
+	"github.com/elyby/chrly/api/mojang"
 	"github.com/elyby/chrly/model"
 )

@@ -15,3 +16,7 @@ type SkinsRepository interface {
 type CapesRepository interface {
 	FindByUsername(username string) (*model.Cape, error)
 }
+
+type MojangTexturesQueue interface {
+	GetTexturesForUsername(username string) chan *mojang.SignedTexturesResponse
+}
--- a/model/skin.go
+++ b/model/skin.go
@@ -8,7 +8,6 @@ type Skin struct {
 	Url             string `json:"url"`
 	Is1_8           bool   `json:"is1_8"`
 	IsSlim          bool   `json:"isSlim"`
-	Hash            string `json:"hash"`
 	MojangTextures  string `json:"mojangTextures"`
 	MojangSignature string `json:"mojangSignature"`
 	OldUsername     string
--- a/tests/mojang_textures_queue_mock.go
+++ b/tests/mojang_textures_queue_mock.go
@@ -0,0 +1,33 @@
+package tests
+
+import (
+	"github.com/elyby/chrly/api/mojang"
+
+	"github.com/stretchr/testify/mock"
+)
+
+type MojangTexturesQueueMock struct {
+	mock.Mock
+}
+
+func (m *MojangTexturesQueueMock) GetTexturesForUsername(username string) chan *mojang.SignedTexturesResponse {
+	args := m.Called(username)
+	result := make(chan *mojang.SignedTexturesResponse)
+	arg := args.Get(0)
+	switch arg.(type) {
+	case *mojang.SignedTexturesResponse:
+		go func() {
+			result <- arg.(*mojang.SignedTexturesResponse)
+		}()
+	case chan *mojang.SignedTexturesResponse:
+		return arg.(chan *mojang.SignedTexturesResponse)
+	case nil:
+		go func() {
+			result <- nil
+		}()
+	default:
+		panic("unsupported return value")
+	}
+
+	return result
+}
--- a/tests/wd_mock.go
+++ b/tests/wd_mock.go
@@ -0,0 +1,61 @@
+package tests
+
+import (
+	"time"
+
+	"github.com/mono83/slf"
+	"github.com/mono83/slf/wd"
+	"github.com/stretchr/testify/mock"
+)
+
+type WdMock struct {
+	mock.Mock
+}
+
+func (m *WdMock) Trace(message string, p ...slf.Param) {
+	m.Called(message)
+}
+
+func (m *WdMock) Debug(message string, p ...slf.Param) {
+	m.Called(message)
+}
+
+func (m *WdMock) Info(message string, p ...slf.Param) {
+	m.Called(message)
+}
+
+func (m *WdMock) Warning(message string, p ...slf.Param) {
+	m.Called(message)
+}
+
+func (m *WdMock) Error(message string, p ...slf.Param) {
+	m.Called(message)
+}
+
+func (m *WdMock) Alert(message string, p ...slf.Param) {
+	m.Called(message)
+}
+
+func (m *WdMock) Emergency(message string, p ...slf.Param) {
+	m.Called(message)
+}
+
+func (m *WdMock) IncCounter(name string, value int64, p ...slf.Param) {
+	m.Called(name, value)
+}
+
+func (m *WdMock) UpdateGauge(name string, value int64, p ...slf.Param) {
+	m.Called(name, value)
+}
+
+func (m *WdMock) RecordTimer(name string, d time.Duration, p ...slf.Param) {
+	m.Called(name, d)
+}
+
+func (m *WdMock) Timer(name string, p ...slf.Param) slf.Timer {
+	return slf.NewTimer(name, p, m)
+}
+
+func (m *WdMock) WithParams(p ...slf.Param) wd.Watchdog {
+	panic("this method shouldn't be used")
+}
Author	SHA1	Message	Date
ErickSkrauch	334e60ff2f	Prepare 4.2.3 release	2019-10-03 01:26:34 +03:00
ErickSkrauch	6d6d0e4b79	Decrease queue batch size. Log all 400 response from the Mojang's API. Resolves #10 .	2019-10-03 01:24:25 +03:00
ErickSkrauch	0cfed45b64	Prepare 4.2.2 release	2019-06-19 01:02:41 +03:00
ErickSkrauch	f872fe4698	Fix race condition, introduced in the previous commit	2019-06-19 00:56:09 +03:00
ErickSkrauch	5b4761e4e5	Fixes #9 . Start GC loop for in-memory textures cache.	2019-06-18 23:34:16 +03:00
ErickSkrauch	e81ca1520d	Add codecov shield [skip ci]	2019-05-06 17:26:55 +03:00
ErickSkrauch	d36fc77df0	Prepare 4.2.1 release	2019-05-06 17:20:52 +03:00
ErickSkrauch	ab78af33a5	Remove validation rules for a hash field	2019-05-06 17:17:44 +03:00
ErickSkrauch	1f057a27aa	Adjust Mojang's queue behavior	2019-05-06 17:12:37 +03:00
ErickSkrauch	9dde5715f5	Adjust Mojang's queue behavior	2019-05-05 23:06:29 +03:00
ErickSkrauch	f3a8af6866	Upgrade Alpine version to 3.9, add ca-certificates	2019-05-02 21:55:21 +03:00
ErickSkrauch	e6bac323c5	Update changelog	2019-05-02 21:07:40 +03:00
ErickSkrauch	6515e3e5bd	Resolves #5 . Return Redis connection to the pool after commands are executed	2019-05-01 02:16:20 +03:00
ErickSkrauch	ed0b9bb040	Resolves #6 . Remove hash field from the project structures	2019-05-01 02:16:11 +03:00
ErickSkrauch	a81c6fc9f8	Resolves #4 . Fix Gopkg.toml structure, update all outdated dependencies, use middlewares introduced in gorilla/mux 1.6.1, replace gopkg.in/h2non/gock.v1 with it's GitHub link github.com/h2non/gock	2019-05-01 02:15:57 +03:00
ErickSkrauch	8aeb1929b5	Merge pull request #3 from elyby/1_mojang_skins_proxy Restore Mojang skins proxy implementation	2019-05-01 00:56:11 +03:00
ErickSkrauch	b97647318f	Enable codecov	2019-04-30 14:31:04 +03:00
KolFoxy	8d619d52cd	#1 : Fixed misspells in README and CHANGELOG Co-Authored-By: erickskrauch <erickskrauch@ely.by>	2019-04-30 11:03:58 +03:00
ErickSkrauch	a5daae3cb8	#1 : Add CHANGELOG.md, update README.md	2019-04-30 01:55:59 +03:00
ErickSkrauch	94b930f388	#1 : Add test case for panic when trying to store response without textures	2019-04-30 00:45:29 +03:00
ErickSkrauch	f213ed45c7	#1 : Log unexpected errors from Mojang API	2019-04-30 00:36:51 +03:00
ErickSkrauch	6daec4dc4b	#1 : Fix GolangCI issues	2019-04-28 20:30:55 +03:00
ErickSkrauch	90ce22f687	#1 : Attempt to fix travis tests run	2019-04-28 20:24:08 +03:00
ErickSkrauch	9250d53fb3	#1 : Remove comments about compatibility check with exists Authlibs	2019-04-28 20:21:46 +03:00
ErickSkrauch	2c7a1625f3	#1 : Tests for http layer are restored	2019-04-28 00:43:22 +03:00
ErickSkrauch	f7cdab243f	#1 : Integrate queue to the application	2019-04-27 01:46:15 +03:00
ErickSkrauch	f3690686ec	#1 : Implement UuidsStorage in Redis	2019-04-25 02:23:10 +03:00
ErickSkrauch	533afcc689	#1 : Add logging mechanic and remove awaiting of finishing of all textures requests in usernames queue	2019-04-25 00:45:04 +03:00
ErickSkrauch	50a19202a5	#1 : Fix build	2019-04-21 20:35:35 +03:00
ErickSkrauch	d7f03ce182	#1 : Implemented in-memory storage for textures	2019-04-21 20:28:58 +03:00
ErickSkrauch	ad300e8c1c	#1 : Implemented helper to decode/encode base64 textures value	2019-04-21 20:27:54 +03:00
ErickSkrauch	7d1506d0d9	#1 : Fix Mojang's API HTTPClient default configuration, make mojang.ResponseError interface not applicable to any type, add handling of some possible network errors	2019-04-21 03:04:03 +03:00
ErickSkrauch	a8bbacf8b1	#1 : Handle Mojang's server errors too	2019-04-20 23:04:29 +03:00
ErickSkrauch	c2921400b0	#1 : Add case when Mojang's API returns empty response	2019-04-20 22:39:17 +03:00
ErickSkrauch	e7c0fac346	#1 : Split textures processing to 2 separate steps	2019-04-20 22:22:02 +03:00
ErickSkrauch	bd099cfb2a	#1 : User golang 1.12 for travis build. Improve random usernames generator	2019-04-20 20:04:57 +03:00
ErickSkrauch	96af45b2a1	#1 : Disallow to query invalid Mojang usernames	2019-04-20 19:51:55 +03:00
ErickSkrauch	b1e18d0d01	#1 : Add storage integration	2019-04-20 19:35:37 +03:00
ErickSkrauch	abea94a41f	#1 : Add broadcaster structure to broadcast results of the same usernames	2019-04-20 03:23:49 +03:00
ErickSkrauch	8244351bb5	#1 : Fix race conditions errors and rewrite tests	2019-04-19 01:41:52 +03:00
ErickSkrauch	e14619e079	#1 : add initial tests for queue, upgrade github.com/stretchr/testify	2019-04-18 02:56:20 +03:00
ErickSkrauch	fd4e5eb9ca	#1 : Pull queue into struct, add storage interface	2019-04-15 02:52:00 +03:00
ErickSkrauch	879a33344b	#1 : Renaming	2019-04-15 01:32:22 +03:00
ErickSkrauch	d2d6d07fa6	#1 : Rough implementation of textures queue	2019-04-15 00:52:10 +03:00
ErickSkrauch	44f3ee7413	#1 : Improve uuidToTextures method, organize tests	2019-04-15 00:31:09 +03:00
ErickSkrauch	7db4d27fba	#1 : Implemented necessary Mojang APIs	2019-04-14 17:36:46 +03:00
ErickSkrauch	4386054ca1	Latest dep structure changes [skip ci]	2019-04-14 17:34:10 +03:00