Developer TrackLesson 320 min

Asset Ingestion with Signed URLs

By the end of this lesson you can
  • Run the two-step upload flow correctly, including required_headers
  • Keep the 1-hour URL clock and the 24-hour file clock straight in your code
  • Decide between a storage_uri and a public URL on evidence rather than habit

Ingestion is a handshake, not a file post. You ask the API for a slot; it hands back a signed URL; you PUT the bytes to storage yourself.

setdefault rather than assignment is deliberate: anything the server specified in required_headers must win over anything you inferred. The documented example shows required_headers as {}, which is exactly why people hardcode nothing and get away with it until they do not. Read it, merge it, do not assume it stays empty.

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