Commit for the first release of the oauth2-twitch package.

.gitignore

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+.idea/
+vendor/

README.md

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+Twitch provider for league/oauth2-client
+=========================================
+
+This is a package to integrate Battle.net authentication with the [OAuth2 client library](https://github.com/thephpleague/oauth2-client) by
+[The League of Extraordinary Packages](http://thephpleague.com).
+
+To install, use composer:
+
+```bash
+composer require depotwarehouse/oauth2-twitch
+```
+
+Usage is the same as the league's OAuth client, using `\Depotwarehouse\OAuth2\Client\Twitch\Provider\Twitch` as the provider.
+For example:
+
+```php
+$provider = new \Depotwarehouse\OAuth2\Client\Twitch\Provider\Twitch([
+    'clientId' => "YOUR_CLIENT_ID",
+    'clientSecret' => "YOUR_CLIENT_SECRET",
+    'redirectUri' => "http://your-redirect-uri"
+]);
+```
+
+You can also optionally add a `scopes` key to the array passed to the constructor. The available scopes are documented
+on the [Twitch API Documentation](https://github.com/justintv/Twitch-API/blob/master/authentication.md).
+
+> Note: The provider uses the "user_read" scope by default. If you pass other scopes, and want the ->getUserDetails() method
+to work, you will need to ensure the "user_read" scope is used.
+
+```php
+if (isset($_GET['code']) && $_GET['code']) {
+    $token = $this->provider->getAccessToken("authorizaton_code", [
+        'code' => $_GET['code']
+    ]);
+
+    // Returns an instance of Depotwarehouse\OAuth2\Client\Twitch\Entity\TwitchUser
+    $user = $this->provider->getUserDetails($token);
+
+    $user->getDisplayName();
+    $user->getId()
+    $user->getType();
+    $user->getBio();
+    $user->getEmail();
+    $user->getPartnered();
+```

composer.json

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+{
+    "name": "depotwarehouse/oauth2-twitch",
+    "description": "A Twitch provider for league/oauth2-client",
+    "authors": [
+        {
+            "name": "Troy Pavlek",
+            "email": "troy@depotwarehouse.net"
+        }
+    ],
+    "require": {
+        "league/oauth2-client": "0.7.*"
+    },
+    "autoload": {
+        "psr-4": {
+            "Depotwarehouse\\OAuth2\\Client\\Twitch\\": "src/"
+        }
+    }
+}

index.php

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+<?php
+
+require 'vendor/autoload.php';
+
+$provider = new \Depotwarehouse\OAuth2\Client\Twitch\Provider\Twitch([
+'clientId' => "bqzmhb7560sdxx7ixll05hmo53taxwp",
+'clientSecret' => "l8z2b6c0ov025fhg1s14v3eosfdut4r",
+'redirectUri' => "http://localhost:8000"
+]);
+
+if (isset($_GET['code']) && $_GET['code']) {
+    $token = $provider->getAccessToken("authorization_code", [
+        'code' => $_GET['code']
+    ]);
+
+    $user = $provider->getUserDetails($token);
+    var_dump($user);
+
+
+} else {
+    header('Location: ' . $provider->getAuthorizationUrl());
+}

src/Entity/TwitchUser.php

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+<?php
+
+namespace Depotwarehouse\OAuth2\Client\Twitch\Entity;
+
+class TwitchUser
+{
+
+    /** @var  string */
+    protected $display_name;
+    /** @var  int */
+    protected $id;
+    /** @var  string */
+    protected $type;
+    /** @var  string */
+    protected $bio;
+    /** @var  string */
+    protected $email;
+    /** @var  bool */
+    protected $partnered;
+
+    public function __construct(array $attributes = array()) {
+        $this->id = $attributes['_id'];
+        $this->display_name = $attributes['display_name'];
+        $this->type = $attributes['type'];
+        $this->bio = $attributes['bio'];
+        $this->email = $attributes['email'];
+        $this->partnered = $attributes['partnered'];
+    }
+
+    /**
+     * @return string
+     */
+    public function getDisplayName()
+    {
+        return $this->display_name;
+    }
+
+    /**
+     * @return int
+     */
+    public function getId()
+    {
+        return $this->id;
+    }
+
+    /**
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    /**
+     * @return string
+     */
+    public function getBio()
+    {
+        return $this->bio;
+    }
+
+    /**
+     * @return string
+     */
+    public function getEmail()
+    {
+        return $this->email;
+    }
+
+    /**
+     * @return boolean
+     */
+    public function isPartnered()
+    {
+        return $this->partnered;
+    }
+
+}