How to send FCM notification to app from web

Question

I am developing chat app which is based on Firebase Database and Storage. Everything is working fine, but now I need implementation of FCM to receive notification on app whe

Answer 1

You can send the post request without curl (which was not available on my server)

sendNotification("New post!", "How to send a simple FCM notification in php", ["new_post_id" => "605"], "YOUR_SERVER_KEY");

function sendNotification($title = "", $body = "", $customData = [], $serverKey = ""){
    if($serverKey != ""){
        ini_set("allow_url_fopen", "On");
        $data = 
        [
            "to" => '/topics/new_post',
            "notification" => [
                "body" => $body,
                "title" => $title,
            ],
            "data" => $customData
        ];

        $options = array(
            'http' => array(
                'method'  => 'POST',
                'content' => json_encode( $data ),
                'header'=>  "Content-Type: application/json\r\n" .
                            "Accept: application/json\r\n" . 
                            "Authorization:key=".$serverKey
            )
        );

        $context  = stream_context_create( $options );
        $result = file_get_contents( "https://fcm.googleapis.com/fcm/send", false, $context );
        return json_decode( $result );
    }
    return false;
}