Creating RTMP Server with Gstreamer

I want to create a solution for RTMP server with Gstreamer , I know that we can use rtmpsrc and rtmpsink elements to stream to an RTMP server , But is it possible to create an RTMP Listening server which can server multiple streams on a single port.

I am trying to create a plugin for Ant Media which can support RTMP Output Server stream will flow something like this.

WebRTC Client ---- >Ant Media -----> Ant Media Gstreamer Plugin RTMP Server