USING OAUTH2 TO GET USER CONTACT LIST - php

Question

I am trying to access a users contact list using google Oauth2 but seem to be running into an error insufficient permision. My code is as below
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Google extends CI_Controller {
public function __construct() {
parent::__construct();
}
public function index() {
require_once 'google-api-php-client/autoload.php'; // or wherever
autoload.php is located
$client = new Google_Client();
$scriptUri = "http://localhost/tcaller/google/";
$client = new Google_Client();
$client->setAccessType('online'); // default: offline
$client->setApplicationName('Tcaller');
$client->setClientId('******');
$client->setClientSecret('****');
$client->setRedirectUri($scriptUri);
$client->setDeveloperKey('******'); // API key
$client->setScopes(array('https://www.google.com/m8/feeds' , 'https://www.googleapis.com/auth/contacts.readonly'));
$plus = new Google_Service_Plus($client);
if (isset($_GET['logout'])) { // logout: destroy token
$this->session->unset_userdata("token");
die('Logged out.');
}
if (isset($_GET['code'])) { // we received the positive auth callback, get the token and store it in session
$client->authenticate($_GET['code']);
$tokenArr = array('token' => $client->getAccessToken());
$this->session->set_userdata($tokenArr);//gets valid access token
$redirect = 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF']; //set into session storage
header('Location: ' . filter_var($redirect, FILTER_SANITIZE_URL));
}
if ($this->session->userdata('token')) { // extract token from session and configure client
$token = $this->session->userdata('token');
$client->setAccessToken($token);
try {
$me = $plus->people->get('me');
print_r($me);
} catch (apiServiceException $e) {
// Handle exception. You can also catch Exception here.
// You can also get the error code from $e->getCode();
echo 'error';
}
}
if (!$client->getAccessToken()) { // auth call to google
$authUrl = $client->createAuthUrl();
header("Location: ".$authUrl);
die();
}
}
}
?>
I am getting the error
Fatal error: Uncaught exception 'Google_Service_Exception' with
message 'Error calling GET
https://www.googleapis.com/plus/v1/people/me?key=%2A%2A%2A%2A%2A%2A:
(403) Insufficient Permission' in
C:\xampp\htdocs\tcaller\application\controllers\google-api-php-client\src\Google\Http\REST.php:111
Stack trace: #0
C:\xampp\htdocs\tcaller\application\controllers\google-api-php-client\src\Google\Http\REST.php(63):
Google_Http_REST::decodeHttpResponse(Object(Google_Http_Request),
Object(Google_Client)) #1 [internal function]:
Google_Http_REST::doExecute(Object(Google_Client),
Object(Google_Http_Request)) #2
C:\xampp\htdocs\tcaller\application\controllers\google-api-php-client\src\Google\Task\Runner.php(172):
call_user_func_array(Array, Array) #3
C:\xampp\htdocs\tcaller\application\controllers\google-api-php-client\src\Google\Http\REST.php(47):
Google_Task_Runner->run() #4
C:\xampp\htdocs\tcaller\application\controllers\google-api-php-client\src\Google\Client.php(564):
Google_Http_REST::execute(Object(Google_Client), Object(Google_H in
C:\xampp\htdocs\tcaller\application\controllers\google-api-php-client\src\Google\Http\REST.php
on line 111
Am i missing something

Answer 1

You should not need to use a separate API key and call $client->setDeveloperKey() as you're obtaining and using an OAuth 2.0 access token already with a client secret. Moreover, it seems that that is incorrect and/or not associated with the same project. So please try with that call removed.