how to create a media source by obs-websocket-js

[szchengmi]

I am using version 30.1.1 64bit and I would like to find a way to control my OBS through OBS websocket JavaScript,
Here are my requirements:

1. In the current scene, create a media source with a path of c: \ hello. mp4, and play immediately after creation
2. In the current scenario, there is an empty media source that can be switched to c: \ hello.mp4 through obs websocket js

What should I do, thank you.