B4J Question [ABMaterial] Need Simple example for Google Cloud Message

Harris · May 27, 2017

I suspect the B4X Push Server will be required... somewhere.

On the Android side, I can stuff new generated messages (outgoing) into a local table and using RDC, send back to server - No GCM required - I suspect.

My Android app currently registers to GCM correctly, and then tries to send using (php - bad):
jb.PostString(thesite&"/recmess.php?ar1="&dt&"&ar2="&nam&"&ar3="&mes&"&ar4="&comp_id&"&ar5="&DefCM.lat1&"&ar6="&DefCM.lon1 ,"")

It should receive messages from GCM without any issues since it just handles the incoming GCM, as it did in the past.

On the ABM/B4J server side, I would like to push these out using GCM.
This is my old code using PHP, which I would like to get rid of...

B4X:

function sendGCM($UserID, $message) {
    $query = "SELECT id From devices Where name=$UserID";
    $row = mysql_fetch_object(mysql_query($query));
   
    // Replace with real BROWSER API key from Google APIs
    $apiKey = "AIzaSyAwsxxxxxxxxxxxxxxO3k"; // Browser Key
   
    // Replace with real client registration IDs
    $registrationIDs = array( $row->id );
       
    // Set POST variables
    $url = 'https://android.googleapis.com/gcm/send';
   
    $fields = array(
                    'registration_ids'  => $registrationIDs,
                    'data'              => array( "data" => $message ),
                    );
   
    $headers = array(
                        'Authorization: key=' . $apiKey,
                        'Content-Type: application/json'
                    );
   
    // Open connection
    $ch = curl_init();
   
    // Set the url, number of POST vars, POST data
    curl_setopt( $ch, CURLOPT_URL, $url );
   
    curl_setopt( $ch, CURLOPT_POST, true );
    curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
   
    curl_setopt( $ch, CURLOPT_POSTFIELDS, json_encode( $fields ) );
   
    // Execute post
    $result = curl_exec($ch);
   
    // Close connection
    curl_close($ch);
}

Thanks

Harris · Jun 1, 2017

Got PushServer working and understood. Had to get new legacy keys from Google by starting a new Firebase project. So be it...
Have one small issue sending messages from B4J (ABM) app. Posted new question about that.

Harris · Jun 4, 2017

Sending new message...
Works first and second, then fails to send with result below.

If I wait fot 1 minute, then usually it will send.

Weird?

B4X:

<HTML>

<HEAD>
<TITLE>The request was missing an Authentication Key (FCM Token). Please, refer to section &quot;Authentication&quot; of the FCM documentation, at https://firebase.google.com/docs/cloud-messaging/server.</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>The request was missing an Authentication Key (FCM Token). Please, refer to section &quot;Authentication&quot; of the FCM documentation, at https://firebase.google.com/docs/cloud-messaging/server.</H1>
<H2>Error 401</H2>
</BODY>
</HTML>

Error sending Android message: The request was missing an Authentication Key (FCM Token). Please, refer to section "Authentication" of the FCM documentation, at https://firebase.google.com/docs/cloud-messaging/server.

B4J Question [ABMaterial] Need Simple example for Google Cloud Message

Harris

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Harris

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Harris

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