The Unity Render Streaming package provides three different signaling types as examples.
Http SignalingWebSocket SignalingFurioos Signaling
In the example, the schema given to URL Signaling is used to determine which type to use.
If it starts with http, HttpSignaling is used. If it starts with ws, WebSocketSignaling is used.
# launch server for HTTP
webserver.exe
# launch server for WebSocket
webserver.exe -w
Signaling is handled by HTTP Request. The signalling server is polled at specified intervals to obtain the Offer and Candidate of the difference from the last time.
Signaling is handled by WebSocket. When the signaling server receives the Offer or Candidate, the server distributes it to the connected clients.
Warning
WebSocket does not work in iOS Safari on servers that use self-signed certificates. If you want to verify the behavior of WebSocket signaling in iOS Safari, use a certificate issued by a trusted certification authority. Or try signaling with HTTP.
Please see this page.
