That is not why.
________________________________ From: Jan-Ivar Bruaroey <[email protected]> Sent: Aug 1, 2017 3:47 PM To: [email protected] Subject: Re: Stream + async await Because a promise is not a control surface of the asynchronous action fulfilling it; confuses owner with consumer. https://stackoverflow.com/a/41417429/918910 .: Jan-Ivar :. On 7/31/17 7:35 AM, T.J. Crowder wrote: Related: https://esdiscuss.org/topic/how-about-awaiting-arrays (particularly the discussion of `await.race`), since effectively you're doing a race between a timeout and each chunk. Also relevant is the former work on cancelling promises, now withdrawn. (Can anyone point me at *why* it was withdrawn?) -- T.J. Crowder On Mon, Jul 31, 2017 at 6:10 AM, kai zhu <[email protected]<mailto:[email protected]>> wrote: the timeout handler will not work as advertised, e.g. what if io / db issues causes a network stream to intermittently respond in intervals far greater than 30000ms or not at all? > On Jul 31, 2017, at 7:26 AM, James Browning > <[email protected]<mailto:[email protected]>> wrote: > > It'll look something like this: > > ```javascript > > async function consumeReadableStream(stream) { > const start = Date.now() > for await (const chunk of stream) { > > /* Do whatever you want with the chunk here e,g, await other > async tasks with chunks > send them off to wherever, etc > */ > > if (Date.now() - start > 30000) { > throw new Error('30000 ms timeout') > } > } > /* Instead of callbackOnce the returned promise from this function > itself can be used */ > } > > ``` > _______________________________________________ > es-discuss mailing list > [email protected]<mailto:[email protected]> > https://mail.mozilla.org/listinfo/es-discuss _______________________________________________ es-discuss mailing list [email protected]<mailto:[email protected]> https://mail.mozilla.org/listinfo/es-discuss _______________________________________________ es-discuss mailing list [email protected]<mailto:[email protected]> https://mail.mozilla.org/listinfo/es-discuss -- .: Jan-Ivar :.
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