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We Built a Custom Transport for Vercel's AI SDK

Ably built a custom transport for the Vercel AI SDK using its realtime platform to overcome the limitations of the default HTTP SSE transport, enabling features like multi-device, multi-user, resumable streams, human handoff, interruptions, and history compaction, while leveraging useChat's setMessages method for multi-user conversations.

SourceHacker News AIAuthor: zknill
We Built a Custom Transport for Vercel's AI SDK
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Under the source content permission, this page provides an editorial summary, key points, and a link to the original article.

Key points and analysis

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Key points

  • Ably built a custom transport for Vercel AI SDK using its realtime platform, addressing HTTP SSE limitations.
  • Default transport lacks multi-device, multi-user support, and resumability; stop() is broken.
  • They used useChat's setMessages() backdoor to support multi-user conversations.
  • New transport adds interruptions, history compaction, and human handoff for improved chat experiences.

Highlights and analysis are generated automatically and may contain errors. Check the original source.