Function fetchRecording

apps/sim/connectors/grain/grain.ts:284–297

* Fetches a single recording's metadata from the v2 recordings endpoint. * Returns null on 404 (recording deleted/inaccessible).

(accessToken: string, id: string)

 * Returns null on 404 (recording deleted/inaccessible).
 */
async function fetchRecording(accessToken: string, id: string): Promise<GrainRecording | null> {
  const response = await fetchWithRetry(`${GRAIN_API_BASE}/recordings/${id}`, {
    method: 'POST',
    headers: grainHeaders(accessToken),
    body: JSON.stringify({ include: RECORDING_INCLUDE }),
  })

  if (!response.ok) {
    if (response.status === 404) return null
    throw new Error(`Failed to fetch Grain recording: ${response.status}`)
  }

  return (await response.json()) as GrainRecording
}

/**
 * Fetches the speaker-attributed transcript segments for a recording.