Type Alias MOQtailRequest

Discriminated union of every in‑flight MOQ‑tail control request tracked by the MOQtailClient.

Each concrete request type encapsulates the original control message plus coordination primitives (e.g. a Promise facade / stream controller) that resolve when a terminal protocol response (OK / ERROR / CANCEL) is received.

Used internally in maps like MOQtailClient.requests to look up state by request id without needing multiple heterogeneous collections.

Variants:

AnnounceRequest – pending ANNOUNCE / ANNOUNCE_OK / ANNOUNCE_ERROR.
SubscribeAnnouncesRequest – pending SUBSCRIBE_ANNOUNCES sequence.
FetchRequest – pending FETCH handshake producing a data stream.
SubscribeRequest – pending SUBSCRIBE producing subgroup object streams.
TrackStatusRequest – pending TRACK_STATUS request.

Example: Looking up a request by id

function isActive(requests: Map<bigint, MOQtailRequest>, id: bigint) {
  const req = requests.get(id)
  if (!req) return false
  // Narrow by instanceof, e.g. FetchRequest
  if (req instanceof FetchRequest) {
    console.log('Fetch still pending for', req.message.requestId)
  }
  return true
}

Type Alias MOQtailRequest

Example: Looking up a request by id

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