Google Calendar API Refresh accessToken - php

Question

I'm running into an issue with Google Calendar API.
I can login with google via authCallback but after one hour it gives me a Invalid Credentials error
App\Http\Controllers\gCalendarController.php
<?php
namespace App\Http\Controllers;
use Carbon\Carbon;
use Google_Client;
use Google_Service_Calendar;
use Google_Service_Calendar_Event;
use Google_Service_Calendar_EventDateTime;
use Illuminate\Http\Request;
class gCalendarController extends Controller
{
protected $client;
public function __construct()
{
$client = new Google_Client();
$client->setAuthConfig('client_secret.json');
$client->addScope(Google_Service_Calendar::CALENDAR);
$guzzleClient = new \GuzzleHttp\Client(array('curl' => array(CURLOPT_SSL_VERIFYPEER => false)));
$client->setHttpClient($guzzleClient);
$this->client = $client;
}
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
session_start();
if (isset($_SESSION['access_token']) && $_SESSION['access_token']) {
$this->client->setAccessToken($_SESSION['access_token']);
$service = new Google_Service_Calendar($this->client);
$calendarId = 'primary';
$results = $service->events->listEvents($calendarId);
$test = $_SESSION['access_token'];
return view('calendar.tyfuscalender', compact('result', 'test'));
} else {
return redirect()->route('oauthCallback');
}
}
public function oauth()
{
session_start();
$rurl = action('gCalendarController#oauth');
$this->client->setRedirectUri($rurl);
if (!isset($_GET['code'])) {
$auth_url = $this->client->createAuthUrl();
$filtered_url = filter_var($auth_url, FILTER_SANITIZE_URL);
return redirect($filtered_url);
} else {
$this->client->authenticate($_GET['code']);
$_SESSION['access_token'] = $this->client->getAccessToken();
return redirect()->route('cal.index');
}
}
/**
* Show the form for creating a new resource.
*
* #return \Illuminate\Http\Response
*/
public function create()
{
return view('calendar.createEvent');
}
/**
* Store a newly created resource in storage.
*
* #param \Illuminate\Http\Request $request
* #return \Illuminate\Http\Response
*/
public function store(Request $request)
{
session_start();
$startDateTime = $request->start_date;
$endDateTime = $request->end_date;
if (isset($_SESSION['access_token']) && $_SESSION['access_token']) {
$this->client->setAccessToken($_SESSION['access_token']);
$service = new Google_Service_Calendar($this->client);
$calendarId = 'primary';
$event = new Google_Service_Calendar_Event([
'summary' => $request->title,
'description' => $request->description,
'start' => ['dateTime' => $startDateTime],
'end' => ['dateTime' => $endDateTime],
'reminders' => ['useDefault' => true],
]);
$results = $service->events->insert($calendarId, $event);
if (!$results) {
return response()->json(['status' => 'error', 'message' => 'Something went wrong']);
}
return response()->json(['status' => 'success', 'message' => 'Event Created']);
} else {
return redirect()->route('oauthCallback');
}
}
/**
* Display the specified resource.
*
* #param $eventId
* #return \Illuminate\Http\Response
* #internal param int $id
*/
public function show($eventId)
{
session_start();
if (isset($_SESSION['access_token']) && $_SESSION['access_token']) {
$this->client->setAccessToken($_SESSION['access_token']);
$service = new Google_Service_Calendar($this->client);
$event = $service->events->get('primary', $eventId);
if (!$event) {
return response()->json(['status' => 'error', 'message' => 'Something went wrong']);
}
return response()->json(['status' => 'success', 'data' => $event]);
} else {
return redirect()->route('oauthCallback');
}
}
/**
* Show the form for editing the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function edit($id)
{
//
}
/**
* Update the specified resource in storage.
*
* #param \Illuminate\Http\Request $request
* #param $eventId
* #return \Illuminate\Http\Response
* #internal param int $id
*/
public function update(Request $request, $eventId)
{
session_start();
if (isset($_SESSION['access_token']) && $_SESSION['access_token']) {
$this->client->setAccessToken($_SESSION['access_token']);
$service = new Google_Service_Calendar($this->client);
$startDateTime = Carbon::parse($request->start_date)->toRfc3339String();
$eventDuration = 30; //minutes
if ($request->has('end_date')) {
$endDateTime = Carbon::parse($request->end_date)->toRfc3339String();
} else {
$endDateTime = Carbon::parse($request->start_date)->addMinutes($eventDuration)->toRfc3339String();
}
// retrieve the event from the API.
$event = $service->events->get('primary', $eventId);
$event->setSummary($request->title);
$event->setDescription($request->description);
//start time
$start = new Google_Service_Calendar_EventDateTime();
$start->setDateTime($startDateTime);
$event->setStart($start);
//end time
$end = new Google_Service_Calendar_EventDateTime();
$end->setDateTime($endDateTime);
$event->setEnd($end);
$updatedEvent = $service->events->update('primary', $event->getId(), $event);
if (!$updatedEvent) {
return response()->json(['status' => 'error', 'message' => 'Something went wrong']);
}
return response()->json(['status' => 'success', 'data' => $updatedEvent]);
} else {
return redirect()->route('oauthCallback');
}
}
/**
* Remove the specified resource from storage.
*
* #param $eventId
* #return \Illuminate\Http\Response
* #internal param int $id
*/
public function destroy($eventId)
{
session_start();
if (isset($_SESSION['access_token']) && $_SESSION['access_token']) {
$this->client->setAccessToken($_SESSION['access_token']);
$service = new Google_Service_Calendar($this->client);
$service->events->delete('primary', $eventId);
} else {
return redirect()->route('oauthCallback');
}
}
}
This is the error message
Google_Service_Exception in REST.php line 118:
{
"error": {
"errors": [
{
"domain": "global",
"reason": "authError",
"message": "Invalid Credentials",
"locationType": "header",
"location": "Authorization"
}
],
"code": 401,
"message": "Invalid Credentials"
}
}
I'm thinking it's something with the token that expires, but i have no idea on how to solve it.
Thanks.

Answer 1

I figured out that if i go back to the '/oauth' route, it prompts me to allow google use my google account again.. Instead of refreshing my accesstoken.. Is there a way to make it refresh? without going back to '/oauth'..
Thanks