gistfile1.php

$app->post('/networks/userinfo', function() use ($app) {

	$app = $app->request();
	$post = $app->post();
	$res = $app->response();

	$network = $post['network'];
	$user = $post['user'];
	
	if ($network == 'twitter') {

		$tmhOAuth = new \tmhOAuth(array(
		    'token' => "***TWITTER ACCESS TOKEN***", 
		    'secret' => "***TWITTER ACCESS SECRET***",
		    'consumer_key' => "***TWITTER CONSUMER KEY***",
		    'consumer_secret' => "***TWITTER CONSUMER SECRET***",
		));

		$response = $tmhOAuth->user_request(array(
		  'method' => 'GET',
		  'url'    => $tmhOAuth->url('1.1/users/lookup'),
		  'params' => array(
		    'screen_name' => array(
		      $user
		    )
		  ),
		));

		if ($response == 401 || $response == 404) {
			$res->status(404);
			$res->body('Could not find user');
			return;
		}

		if ($tmhOAuth->response) {
			$twitterUser = reset(json_decode($tmhOAuth->response['response']));

			if (!$twitterUser || (is_object($twitterUser) && !property_exists($twitterUser, 'id'))) {
				$this->response->status(404);
				$this->response->body('Could not find user');
				return;
			}

			$user_id = $twitterUser->id;
			$user_full_name = $twitterUser->name;
		}

	} else {

		/**
		 * We also need to check the ID for our Instagram users.
		 */

		// Basic config based on our stream's info
		$config = array(
	        'client_id'     => '****INSTAGRAM ID*****',
	        'client_secret' => '****SECRET*****',
	        'grant_type'    => 'authorization_code',
	        'redirect_uri'  => 'https://'. $_SERVER['SERVER_NAME'],
	        "verify_token"  => uniqid()
	    );

		// now we are just setting up our Instagram object
		$instagram = new \Instagram($config);
		$instagram->setAccessToken('***INSTAGRAM ACCESS TOKEN***');

		// Search for that user by their sn
		// Then grab their ID
		$instaUser = $instagram->searchUser($user);
		$instaUserObj = json_decode($instaUser);

		if (count($instaUserObj->data) === 0) {
			$res->status(404);
			$res->body('Could not find user');
			return;
		}

		$user_id = (int)$instaUserObj->data[0]->id;
		$user_full_name = $instaUserObj->data[0]->full_name;
	}
	
	echo json_encode(array('id' => $user_id, 'name' => $user_full_name));
});