hourksavet

Because ack is required server send an ack back 

You set "timeout" = 1 second it too short time for sending data. Please test to increase your timeout. timeout will kill your emit thread. Timeout it like to API...

> @hourksavet I increase the timeout = 20 but still getting the same error "NO ACK" Please check your formate data to emit, is formate `[String: Any]` or` [Any]` or...

I am using v15.2.0 and test with v16.1.0; It working. Maybe server side do eat you. `NO ACK` because your service side not call ack back.