Tag: s3

All the articles with the tag "s3".

• Uploading a Photo Is One POST Request. So Why Do Chat Apps Engineer It So Hard?

  27 Aug, 2026

  A 45 MB video, a moving taxi, a connection that dies at 93% — media upload is five problems wearing one trench coat. The full map: resumable chunks, optimistic UX, dedup, async pipelines, and the resilience layer nobody blogs about.