Which Code on web tranlate the colibri to SDP?

I am learning the Colibri API on JVB.
I want to start a video conference by calling the JVB colibri API.
by calling the /colibri/conferences/, the JVB return some channel and candidate.
How put them into the SDP on user’s browser client ?

It is jicofo that communicates with the bridge and uses the information from the bridge to make a xmpp jingle call send to the client, from that jingle call (the channels and ports) the client create SDP the logic starts in JingleSessionPC and here: https://github.com/jitsi/lib-jitsi-meet/blob/master/modules/xmpp/JingleSessionPC.js#L947

Well im lost here too …
With what do i communicate ? With the Rest API or with Jicofo? I only found a “documentation” about the Rest api so i went with that … but here im stuck at the same issue how do i translate the Colibri XML into a SPD …

I’m basically stuck with two ends that have all the informations about them selfes but cant talk to each other because the one speaks SDP and the other COLIBRI …

Any info on how to get a plain Webrtc Client working with Jitsi ?!