Add an RTMP simulcast destination to an existing encoder live channel.
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Step-by-step: Simulcast.
This endpoint does not create a live channel. You need an existing encoder live stream: create it with Create Stream, then pass that channel id here.
Simulcast restreams a channel your encoder publishes to Dacast. Use channel_type transmux, sd-transcode, hd-transcode, or fhd-transcode. Do not add destinations to:
- VOD Rebroadcast channels
- HLS ingest channels (
channel_typehls)
Push that live channel to another platform (YouTube, Twitch, Facebook, or any RTMP ingest) while Dacast remains the origin.
POST /v2/channel/{id}/simulcast-destinations with rtmp_url and stream_key. A successful add returns 201 and {}. The new destination id is not in this response: read it from List Simulcast Destinations.
The list can return null or omit the new row for a few seconds. Retry until data contains the destination.
If the channel id does not exist, the API returns 404.