Hello,
My answer was in c++ and thus was wrong, I didn’t see it was in blueprint section.
Websocket networking plugin: This not to expose websocket to blueprint. It’s a replacement for traditionnal/platform sockets used in unreal engine networking system. It’s invisible to you in blueprints, you use the same replication, event/vars…
Other plugins: You may need a third party plugin to achieve this in blueprint directly.
Take care i don’t know is they are up to date and safe to use.
Code: This is most easy and safe alternative, in c++, you don’t need additionnal plugin to use websocket, you just need the module.
I also recommend you to bind on OnRawMessage() to add chunk data into a uint8 audiobuffer for your audio stream.