Asynchronous Response (Separate Response) with Lobaro CoAP

[ameerhazo]

Hello, I've been using Lobaro CoAP for a project im doing on the ESP8266. Normal responses work well and I'm now trying to get into separate responses. I am aware of the usage of the HANDLER_POSTPONE macro as a return for my request handler so that my CoAP server sends out an empty acknowledgement to the client, but my server doesnt send the test message after using a delay in my code (3 seconds delay). Can someone please explain to me how the handler for a separate response would look like with Lobaro CoAP? Thanks for your help.

Ameer