how can get paylod data when I using FCM in flutter? - flutter

Question

how can get paylod data when I using FCM in flutter?
I tried used this methods, but I still could not got the data...
where has issues?
void getInitialMessage() async {
RemoteMessage? message =
await FirebaseMessaging.instance.getInitialMessage();
print(message?.data["type"]);
if (message != null) {
if (message.data["type"] == "noti") {
print("AAAAA");
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) =>
PostDetailScreen(postid: message.data["postid"]),
),
);
} else if (message.data["type"] == "active") {
Navigator.of(context).push(
MaterialPageRoute(
builder: (context) => PostDetailScreen(postid: '456'),
),
);
}
}
}
When I go to postman to test, I will send this format
Future<void> sendPushMessage(String token, String body, String title,
String postid, String images) async {
try {
await http.post(
Uri.parse('https://fcm.googleapis.com/fcm/send'),
headers: <String, String>{
'Content-Type': 'application/json',
'Authorization':
'key=AAAAm2nkpqg:APA91bH9l8kYkJqGyGnVJhUe4dmG5KeYVrErEB_vl7vhZDGBAgFGOYsyHguDna-SBeP8juVoTtLQ61aI61QZ-46JFwaR-8KPai7CT6n4-jRZFBIMOHEl1Ph',
},
body: jsonEncode(
<String, dynamic>{
'notification': <String, dynamic>{'body': body, 'title': title},
'priority': 'high',
'timeToLive': 24 * 60 * 60,
'data': <String, dynamic>{
'click_action': 'FLUTTER_NOTIFICATION_CLICK',
'id': '1',
'status': 'done',
'type': 'noti',
'postid': 'Mi6Y3sE9E0uz4uAvQjwC'
},
"to": token,
},
),
);
} catch (e) {
print("error push notification");
}
}
I can receive the Notification, but I have setting "type": "noti". So when I click the notification message, it shoule be print AAAAA and Navigator to PostDetailScreen. But It's always open app then go to homepage....

Answer 1

Send out FCM message with this structure, here I use NodeJS Firebase Cloud Function, but the important thing is to add the second, options part:
await admin.messaging().sendToDevice(tokens, {
data: {
click_action: 'FLUTTER_NOTIFICATION_CLICK',
type: 'noti',
postid: 'ulEdnFiEZxyyc33UNvJs'
},
notification: {
title: 'title',
body: 'body'
},
}, {
contentAvailable: true,
priority: 'high',
timeToLive: 24 * 60 * 60, // in seconds
});
After this, in getInitialMessage you should have:
message.data['type'] // 'noti'
message.data['postid'] // 'ulEdnFiEZxyyc33UNvJs'