There are two modes:
ReDoc for v1.0 - RESTful WebAPI
Swagger UI (all versions)Download CPlugin.WebAPI.Realtime.ts typescript interface file to get all interfaces and classes used.
Official Microsoft documentation for SignalR client using Javascript here
Feel free to check source code of pages below to get general idea about SignalR/WebSockets connection.
simple example can be found here.
MT4 SignalR example, download it, put correct settings and run on your own
MT4 SignalR streaming example, download it, put correct settings and run on your own