The streamText onStepFinish and onFinish events are not triggered when useChat stop() is called.
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The streamText onStepFinish and onFinish events are not triggered when useChat stop() is called.
Thanks for sharing this, and welcome to the Vercel Community!
Could you share any reproducible example for us? I'll pass it onto the team 😄
When I click the Stop Streaming button, the onStepFinish and onFinish callbacks are not triggered.
This issue has already been reported in November at the following link:
https://github.com/vercel/ai/issues/3527
but no response has been provided yet.
may codes: (NEXT.JS)
FE:
import { useChat } from 'ai/react'const { messages, stop, append, ...restChat } = useChat({ api: `/api/chat`, }); <button onClick={() => stop()}> stop streaming </button>BE (app/api/chat/route.ts):
import { streamText } from "ai"; const res = await streamText({ model: openaiSdk("gpt-4o-2024-08-06"), maxTokens: 2000, temperature: 0, messages, onStepFinish: async () => { console.log("stepFinish triggered"); }, onFinish: async () => { console.log("finish triggered"); }, }); return res.toDataStreamResponse();