facebook graph api page access tokens

Author: jstolpe

facebook_graph_api/defines.php

@@ -4,4 +4,9 @@
 	define( 'FB_APP_SECRET', '{FB-APP-SECRET}' );
 	define( 'FB_REDIRECT_URI', '{REDIRECT-URI}' );
 	define( 'FB_GRAPH_VERSION', 'v12.0' );
-	define( 'FB_GRAPH_DOMAIN', 'https://graph.facebook.com/' );
+	define( 'FB_GRAPH_DOMAIN', 'https://graph.facebook.com/' );
+
+	$userAccessToken = '{FB-USER-ACCESS-TOKEN}';
+
+	$pageId = '{FB-PAGE-ID}';
+	$pageAccessToken = '{FB-PAGE-ACCESS-TOKEN}';

facebook_graph_api/functions.php

@@ -65,7 +65,7 @@ function getFacebookLoginUrl( $permissions, $state ) {
 	 * Endpoint https://graph.facebook.com/{fb-graph-version}/oauth/access_token?client_id{app-id}&client_secret={app-secret}&redirect_uri={redirect_uri}&code={code}
 	 *
 	 * @param string $code code returned from facebook, exchange for access token
-	 * @return array $response
+	 * @return array
 	 */
 	function getAccessTokenWithCode( $code ) {
 		// endpoint for getting an access token with code
@@ -80,4 +80,25 @@ function getAccessTokenWithCode( $code ) {
 
 		// make the api call
 		return makeApiCall( $endpoint, 'GET', $params );
+	}
+
+	/**
+	 * Get an access token with the code from facebook.
+	 *
+	 * Endpoint https://graph.facebook.com/{fb-graph-version}/{endpoint-path}
+	 *
+	 * @param array $params Params for fb endpoint.
+	 * @return array
+	 */
+	function getFacebookUserInfo( $params ) {
+		// endpoint for getting an access token with code
+		$endpoint = FB_GRAPH_DOMAIN . FB_GRAPH_VERSION . '/' . $params['endpoint_path'];
+	
+		$endpointParams = array( // params for the endpoint
+			'fields' => $params['fields'],
+			'access_token' => $params['access_token']
+		);
+
+		// make the api call
+		return makeApiCall( $endpoint, $params['request_type'], $endpointParams );
 	}

facebook_graph_api/get_page_access_token.php

@@ -0,0 +1,32 @@
+<?php
+	// include our defines file
+	include 'defines.php';
+
+	// include php functions
+	include 'functions.php';
+
+	$userInfoParams = array( // endpoint and params for getting a user
+		'endpoint_path'=> 'me',
+		'fields' => 'accounts,name',
+		'access_token' => $userAccessToken,
+		'request_type' => 'GET'
+	);
+
+	// get user info from the api
+	$userInfo = getFacebookUserInfo( $userInfoParams );
+
+	$pageInfoParams = array( // endpoint and params for getting page
+		'endpoint_path'=> $pageId,
+		'fields' => 'access_token',
+		'access_token' => $userAccessToken,
+		'request_type' => 'GET'
+	);
+
+	// get page info from api
+	$pageInfo = getFacebookUserInfo( $pageInfoParams );
+
+	// dump out results on page
+	echo '<pre>';
+	print_r($userInfo);
+	print_r($pageInfo);
+	die();