FCM Notification in iOS doesn't play sound when received - ios

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:
My Authorization code is correct
I am sending http request to https://fcm.googleapis.com/fcm/send
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)

Answer 3

payload = {
notification:{
title: 'SOLO has been changed by an administrator',
body: 'Administrator changed your SOLO schedule',
},
android: {
},
apns: {
headers:{
"apns-collapse-id": "solo_changed_administrator",
"content-available": "1",
"apns-priority": "10",
},
payload:{
aps:{
sound: 'default',
badge: 12213123223
}
}
},
data:{
type: 'type'
}
}
https://firebase.google.com/docs/reference/fcm/rest/v1/projects.messages?authuser=0#ApnsConfig

Answer 4

I had the same problem. When notifications come through FCM to iOS not working sounds or vibrations. Here I followed this link: https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/PayloadKeyReference.html#//apple_ref/doc/uid/TP40008194-CH17-SW1
And finally went successful. I created my apple notification as an alert in my payload and it works for me. Here is my JSON below to get some idea about my solution.
"apns": {
"payload": {
"aps" : {
"alert" : {
"body": "Notification body",
"title": "Notification title"
},
"badge" : 2,
"sound" : "default"
}
}
}
Note: Please put this "apns" key in the relevant place of your message request. I was using REST call for requesting message.
Please refer the following link to get a good idea of how to send a notification message with platform-specific delivery options.
Link: https://firebase.google.com/docs/cloud-messaging/concept-options#example-notification-message-with-platform-specific-delivery-options