RTMP live transcoding is available?

I would like to ask if this possible to transcoding for example a live webcam to RTMP stream, like in CLI ffmpeg version. For example the incoming data from camera directly transcoded by FFMpeg.wasm to an RTMP server?

Main question is, is it possible to do something like that:
`mediaRecorder.ondataavailable = async (data) => { ffmpeg.transcode_to_RTMP_server(new Uint8Array(await (new Blob([data])).arrayBuffer())) }`

Thank you very much!