public static async Task MainFirebaseAdminAuth() { using (var firebase = new FireBase.Notification.Firebase()) { await firebase.PushNotifyAsync(sender_Id, "Hello", "World"); FileStream serviceAccount = new FileStream(path_to_private_key, FileMode.Open); // get the content of the file var credential = GoogleCredential.FromStream(serviceAccount); // obtain the credential from the file serviceAccount.Close(); //close the file (release the file handle, and possibly the thread!) var storage = StorageClient.Create(credential); //storage details // Make an authenticated API request. //new FCMPushNotification().SendNotification("_title", "_message", "_topic", "deviceId"); //firebase.PushNotifyAsync(id, "Hello", "World").Wait(); var buckets = storage.ListBuckets(projectId);//Todo: check why the bucket was empty! //buckets foreach (var bucket in buckets) { Console.WriteLine($"{bucket.Name}::{bucket}"); } //FirebaseInstanceId.getInstance().getToken(); //try //{ // FirebaseApp.Create(new AppOptions() // { // Credential = GoogleCredential.GetApplicationDefault(), // }); //} //catch (Exception ex) //{ //} try { var firebaseApp = FirebaseApp.Create(new AppOptions() { Credential = GoogleCredential.FromFile(path_to_private_key), }, "My_Beautiful_App"); FirebaseMessaging.GetMessaging(firebaseApp); new FCMPushNotification().SendNotification("title", "message", "topic", deviceId); await new ProgramFirebaseAdminAuth().SendNotification(new List <string>() { deviceId, deviceId }, "title", "body: some sort of msg to be sent to a device!"); } catch (FirebaseException fex) { } catch (Exception ex) { } //try //{ // FirebaseApp.Create(); // // Initialize the default app // var defaultApp = FirebaseApp.Create("defaultOptions"); // // Initialize another app with a different config // var otherApp = FirebaseApp.Create("other"); // Console.WriteLine(defaultApp.Name); // "defaultOptions" // Console.WriteLine(otherApp.Name); // "other" // // Use the shorthand notation to retrieve the default app's services // var defaultAuth = FirebaseAuth.DefaultInstance; // // Use the otherApp variable to retrieve the other app's services // var otherAuth = FirebaseAuth.GetAuth(otherApp); //} //catch (Exception ex) //{ //} } }