Vercel Functions using Node.js can now detect when a request is cancelled and stop execution before completion. This is configurable on a per-path basis, and includes actions like navigating away, closing a tab, or hitting stop on an AI chat to terminate compute processing early.
This reduces unnecessary compute, token generation, and sending data the user would never see.
To enable cancellation, add
Once enabled, you can listen for cancellation using
If you’re using the AI SDK, forward the
Learn more about cancelling Function requests.
Read more
Continue reading...
This reduces unnecessary compute, token generation, and sending data the user would never see.
To enable cancellation, add
"supportsCancellation": true to your vercel.json configuration. You can apply it to specific paths or all functions:Once enabled, you can listen for cancellation using
Request.signal.aborted or the abort event:If you’re using the AI SDK, forward the
abortSignal to your stream:Learn more about cancelling Function requests.
Read more
Continue reading...