FCM Notification in iOS doesn't play sound when received

Question

I am using Firebase push notifications in my iOS Application. Although I am able to send the notification by sending below payload, it doesn't play a sound when received.

{     "to": "myToken",     "notification": {         "body": "test",         "title": "test"     },     "priority": "high"     "sound": "default" } 

If I send the test message from console, it works well and plays notification sound.
Note:

1. My Authorization code is correct
2. I am sending http request to https://fcm.googleapis.com/fcm/send
3. I have tested it on IPhone 4 , IPhone 6 and IPhone 6S, All recieve notifications without sound

Answer 1

your JSON "sound" : "default" should be inside the "notification" key not in the root of the JSON. This JSON should work.

{     "to": "myToken",     "notification": {          "body": "test",          "title": "test",          "sound": "default"     },     "priority": "high" } 

Answer 2

When using the FCM admin SDK, you have to specify sounds separately for Android and Apple devices:

let message = {     notification: {         'body': 'This is the message the user sees',     },     data: {         'param1': 'specify some extra data here',     },     // Apple specific settings     apns: {         headers: {             'apns-priority': '10',         },         payload: {             aps: {                 sound: 'default',             }         },     },     android: {       priority: 'high',       notification: {           sound: 'default',       }     },     token: 'target FCM token goes here', }; 

(Note: I've only tested the Apple settings thus far)