[runtime] allow changing the url and/or websocket connection payload of experimental websockets

[martinbonnin]

Description

See #5862 (comment)

Some use cases require changing the url and/or websocket connection payload. Should we add that part of the request pipeline, same as we have "HTTP headers"?

[palomatxr]

I've encountered the same issue while trying to change the URL
Has there been any feature released recently that addresses this need?

[martinbonnin]

Hi 👋 There is sadly nothing like this in the experimental WebSockets.

You can use the regular WebSocketNetworkTransport and serverUrl {} for this. serverUrl {} takes a lambda as parameter that will be called so you can update the url if needed.