Android notification payload in gRPC

[ghost]

How can I send Android notification payload using gRPC?
gRPC NotificationRequest struct has a special field Alert for iOS alert payload, but there is no
such field for Android.

message NotificationRequest {
  repeated string tokens = 1;
  int32 platform = 2;
  string message = 3;
  string title = 4;
  string topic = 5;
  string key = 6;
  int32 badge = 7;
  string category = 8;
  Alert alert = 9;
  string sound = 10;
  bool contentAvailable = 11;
  string threadID = 12;
  bool mutableContent = 13;
  google.protobuf.Struct data = 14;
  string image = 15;
  enum Priority {
    Normal = 0;
    High = 1;
  }
  Priority Priority = 16;
}

message NotificationReply {
  bool success = 1;
  int32 counts = 2;
}

Also, looking at your code I have noticed that you hardcoded success value in NotificationReply to true

return &proto.NotificationReply{
		Success: true,
		Counts:  int32(len(notification.Tokens)),
	}, nil

I think this might be misleading.