How to Register a device for Push notification and get a Token

Question

i trap the token creation and store it in the db

[Service(DirectBootAware = true, Exported = false, Enabled = true)]
[IntentFilter(new[] { "com.google.firebase.MESSAGING_EVENT" })]
public class CustomFirebaseMessagingService : FirebaseMessagingService
{
    public override void OnNewToken(string token)
    {
        try
        {
            base.OnNewToken(token);
            GenericMethods.PUSH_TOKEN = token;
            Task.Run(() => GenericMethods.StorePushToken(token));
        }
        catch (Exception ex)
        {
            Crashes.TrackError(ex);
        }
    }

and i have subscribed to the change on the App.cs

    CrossFirebasePushNotification.Current.OnTokenRefresh += Current_OnTokenRefresh;

for some reason some users who register on my app dont have token saved and i dont get an error . Their device are in the supported range of android and non Huawei . I want to manually register the device and get a token , how can i do that programmatically ?

Thanks

Answer 1

Hello,

for some reason some users who register on my app dont have token saved and i dont get an error.

Your code seems no problem, Please check the method GenericMethods.StorePushToken, it would be the reason the error occurs.

manually register the device and get a token

It's no way to set the device token for Firebase Cloud Messaging by yourself. It would actually be an antipattern to set a user's ID, due to the same user may end up using the app on different devices.

Best Regards,

Alec Liu.

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