How to Send push notifications using One Signal + PHP + Server API?

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I am using one signal to send push notification for android app. My question is

How Can I setup send push notifications using server rest api?

function sendMessage(){
    $content = array(
        "en" => 'Testing Message'

    $fields = array(
        'app_id' => "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxx",
        'included_segments' => array('All'),
        'data' => array("foo" => "bar"),
        'large_icon' =>"ic_launcher_round.png",
        'contents' => $content

    $fields = json_encode($fields);
print("\nJSON sent:\n");

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "");
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json; charset=utf-8',
                                               'Authorization: Basic xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    curl_setopt($ch, CURLOPT_HEADER, FALSE);
    curl_setopt($ch, CURLOPT_POST, TRUE);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);    

    $response = curl_exec($ch);

    return $response;

$response = sendMessage();
$return["allresponses"] = $response;
$return = json_encode( $return);
print("\n\nJSON received:\n");

OneSignal: #1 Push Service, Segments are the most common way developers send notifications via OneSignal. Sending to segments is easy: you simply specify which segments you want to send to, and, optionally, which ones you don't. Required The segment names you want to target. Users in these segments will receive a notification. Sending Notifications. To send notifications, you need to implement server-side logic. Add the OneSignalAPI in the Manage Dependencies… menu option. This API contains the server-side actions to send notifications. Add the server-side logic to send the notification like in the image below:

Create notification, These include: Welcome Message, Push Permission Prompt, Promotions, New Feature Announcements, and App Store Rating request. You can customize these  The world's leader for Mobile Push Notifications, Web Push, and In-App Messaging. Trusted by 800k businesses to send 5 billion Push Notifications per day.

I see you have set isAndroid=true, but OneSignal is returning an error that shows that the application with ID eec33e8e-5774-4b74-9aae-37370778c4b2 does not have Android notifications enabled.

Make sure your app ID is correct, and if it is, that Android notifications are enabled in your OneSignal settings.

Sending In-App Messages, Devices subscribe or "opt-in" to receive push notifications usually through Prompting like Once a device is subscribed, you can start Sending Push Messages. OneSignal is a Push Notification service for Web Push, iOS, Android, Chrome, Unity 3D, Amazon, Windows Phone, Phonegap, Marmalade, Corona, & more.

Push Notifications by One Signal, OneSignal is a Push Notification service for Web Push, iOS, Android, Chrome, Setting up and sending background notifications in iOS requires 3 components: this within the NSE using native code, and send the data to your app to handle. You will need to get the OneSignal user / player id from the device by calling IdsAvailable from the OneSignal SDK. You can then make a call to your server from the block where you can store the id. As an alternative you can tag the user with your own id in your app. Example. OneSignal.sendTag("user_id", "123");

Is there anyway to send push notifications to mobile devices without , Automated Push Notifications, One Signal, OneSignal android, onesignal push notification Duration: 8:38 Posted: Jun 8, 2018 Send notification on post is now available to any WordPress user with permissions to create or edit posts. 1.0.4. Notifications sent with the Automatic Push Notifications on Post feature directly link to the post instead of the homepage when opening the notification.

Push Notification Guide, One of the most popular service for push-notifications on mobile messages are sent, what is CTR for them, it means what message and when  Hi guys I have a wierd issue. My OneSignal notifications work great when I'm sending push notification from OneSignal website to devices notifications come trough everything works great.