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help detecting client disconnections in route handlers #48682
Replies: 6 comments 6 replies
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maybe we can add an then in my route handler: would something like this work? |
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maybe next should expose the original node request, nuxt 3 does this: event.node.req |
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I have a similar use case, where I am streaming events to the client. When the user navigates away from the page, the event stream remains opened indefinitely on the server. |
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You can check for request.signal.abort, if that's set to true then you can exit out of your loop on the server. |
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@masterkain, do you mind posting your solution to this issue? Now that you have marked this as closed, it would be helpful to understand how you have managed to detect client disconnection on the server side in NextJS. Thanks. |
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After a lot of head scratching, I figured this out: #48682 (reply in thread) |
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sample api routes code export async function GET(request: NextRequest, { params }: { params: { key: string[] } }) {
const getObjectResponse = await s3Service.client.send(getObjectCommand, { abortSignal: request.signal });
const transformedStream = getObjectWebStream.pipeThrough(decryptedStream, { signal: request.signal });it takes a few seconds to kick in once the client is gone |
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Why this is closed ? Lets take example this Route Handler: export async function GET(req: NextRequest) {
const abortController = new AbortController()
// How to fire the abortController.abort() when this request is aborted by the caller
// to prevent further useless data processing
// This could be something like: req.on("abort",()=>{abortController.abort()})
try {
const url = '...'
const response = await axios.get(url, { signal: abortController.signal })
// do some processing using the data from axios here....
return NextResponse.json({ result: 'Some data...' }, { status: 200 })
} catch (error) {
if (axios.isCancel(error)) return NextResponse.json({ result: 'request canceled' }, { status: 499 })
return NextResponse.json({ error: 'Server error' }, { status: 500 })
}
} |
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Can you pass |
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@lukemorton I am checking again if this is fixed. |
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