Added BattleNet example (#19)

Author: logical-and

examples/battlenet.php

@@ -0,0 +1,52 @@
+<?php
+
+/**
+ * Example of retrieving an authentication token of the BattleNet service
+ *
+ * PHP version 5.4
+ *
+ * @author     And <and.webdev@gmail.com>
+ * @copyright  Copyright (c) 2015 The authors
+ * @license    http://www.opensource.org/licenses/mit-license.html  MIT License
+ */
+
+use OAuth\Common\Consumer\Credentials;
+use OAuth\Common\Storage\Session;
+use OAuth\OAuth2\Service\BattleNet;
+
+/**
+ * Bootstrap the example
+ */
+require_once __DIR__ . '/bootstrap.php';
+
+// Session storage
+$storage = new Session();
+
+// Setup the credentials for the requests
+$credentials = new Credentials(
+    $servicesCredentials[ 'battlenet' ][ 'key' ],
+    $servicesCredentials[ 'battlenet' ][ 'secret' ],
+    $currentUri
+);
+
+// Instantiate the BattleNet service using the credentials, http client, storage mechanism for the token and profile scope
+/** @var BattleNet $battleNetService */
+$battleNetService = $serviceFactory->createService(
+    'battlenet',
+    $credentials,
+    $storage,
+    [BattleNet::SCOPE_SC2_PROFILE, BattleNet::SCOPE_WOW_PROFILE]
+);
+$battleNetService->setRegion('us');
+
+if ($battleNetService->isGlobalRequestArgumentsPassed()) {
+    // Retrieve a token and send a request
+    $result = $battleNetService->retrieveAccessTokenByGlobReqArgs()->requestJSON('/account/user');
+
+    // Show some of the resultant data
+    echo 'Your unique Battle.Net user id is: ' . $result[ 'id' ];
+} elseif (!empty($_GET[ 'go' ]) && $_GET[ 'go' ] === 'go') {
+    $battleNetService->redirectToAuthorizationUri();
+} else {
+    echo "<a href='$currentUri?go=go'>Login with Battle.Net!</a>";
+}

examples/init.example.php

@@ -19,6 +19,10 @@
         'key'    => '',
         'secret' => '',
     ],
+    'battlenet' => [
+        'key'    => '',
+        'secret' => ''
+    ],
     'bitbucket'   => [
         'key'    => '',
         'secret' => '',