send notification from the client - Firebase Cloud Messaging - swift programmatically

Question

Is it possible to find a push notification from the client using swift? I searched online and the only examples, documentation I found were strictly related to the use of Firebase Cloud Functions and or using the Firebase Console.

I wanted to know if it's possible to create and send a notification using Firebase Cloud Messaging from the client.

Answer 1

It's actually possible using the firebase rest api, the following endpoint could be used to send a notification:

https://fcm.googleapis.com/fcm/send

The HTTP request must be a POST request with these headers:

Authorization: key=<server_key>

Content-Type: application/json

and the following body:

{
  "to" : "<FCM TOKEN>",
  "collapse_key" : "type_a",
  "priority": 10,
  "data" : {
    "body" : "Notification",
    "title": "Notification title"
    }
}

Of course you need to know to the FCM token of the target device that should receive the notification or at least the topic where the device/user is subscribed to. If you want to send notification to a specific topic use the following body:

{
  "to" : "/topics/<YOUR_TOPIC>",
  "collapse_key" : "type_a",
  "priority": 10,
  "data" : {
   "body" : "Notification",
   "title": "Notification title"
   }
}