question
 recently, the company asked me to investigate  WebRTC  and found that  adapter.js  was used in existing products. After consulting the data, I found that only what he was but did not say how he used it (maybe my posture was wrong? ) 
so I would like to ask if there are any bosses who have relevant experience to give us some advice:
- 
What is the relationship between WebRTCandadapter.js?
- 
adapter.jshow to use it?
I am a small front end, suddenly gave me this investigation task makes me very uncomfortable, do not understand the relevant knowledge of instant messaging, can only brazenly ask you for advice.
if the boss happens to have related posts or tutorials, you can post them.
