GoogleCloudMessaging Unauthorized Error 401

Question

I try to create project with use GoogleCloudMessaging to recieve push - notifications from my remote server. For client i use google tutorial Implementing GCM Client. For server i use this realization on php, but after i started php script, i got an error:

Unauthorized

Error 401

Here is my php code:

$url = 'https://android.googleapis.com/gcm/send';
$serverApiKey = "778688687533"; // sender id (Project Number)
$reg = "APA91bFFWLYsX8TK_XiGQJeUkHb_7FJZwZBSdnNEdxzQEQ-ijpmVvwBPxaz3wQPmWy_K6YAIYt1x_3IBDzbyALxcpmjL8mKEX7g5CV9QpXod3oFp4Hm5HqsY8snoQdua3l0NcMoHm0WE4oTbNUYcbAOE7zjJEV_p9Q"; // registration id

$headers = array(
'Content-Type:application/json',
'Authorization:key=' . $serverApiKey
);

$data = array(
'registration_ids' => array($reg),
'data' => array(
'message' => 'Hello, World!'
));

print (json_encode($data) . "\n\n");

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
if ($headers)
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));

$response = curl_exec($ch);

curl_close($ch);

print ($response);

enter image description here

Do i have to use server key instead of project number? where can i get/create server key? google has changed disign of console, and i can't find server key. Thanks! — Denis, Nov 28 '13 at 13:50
I solved the problem. As Sunil Mishra wrote i had to use server key instead of sender id (Project Number) in my php script. — Denis, Nov 28 '13 at 19:53
what do you mean "server key" ? I have the same issue, thanks — TootsieRockNRoll, Jan 19 '14 at 17:49

score 0 · Answer 1 · answered Jan 30 '14 at 13:03

To create the new server key, follow the steps,

Go to https://cloud.google.com/console/project
Click your Project
Go to APIs & auth on Left Panel
Select Credentials in submenu on Left Panel
Under Public API access, click on "Create New Key"
Choose 'Server'
On next dialog, Specify the whitelisted IPs, if you have any. Leaving it blank, the requests will be from any IP
Click Create.
You will find the new server key is created under "Public API Access"

This key is to be used for sending message in your script on server side.

GoogleCloudMessaging Unauthorized Error 401

1 Answers1

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