I'm experimenting with Gorilla WebSocket Package and I would like to know whether there is a way based on the error retrieved from .ReadMessage to determine whether to start the Closing Handshake (ex. 1000 - normal closure) or stop the connection immediately (ex. 1006 - abnormal closure).
Currently what I'm doing is to store the list of error codes that I might use to close the websocket connection and if an error code is equals to one of the codes in my list, I do the Closing Handshake. However I'm not sure whether this complies with the WebSocket Spec.
Is there another way to do this or this is how it is suppose to be done?
Applications should only send close frames when the application decides to close the connection. The Gorilla package handles all other cases.
The Gorilla package sends the closing handshake on read errors. The Gorilla internal method handleProtocolError starts the closing handshake.
Gorilla replies to closing handshakes from the peer application.