Asynchronous sleep about promises HOT 5 CLOSED

Guzzle (the client) also supports the delay request option which can be used to delay the sending of a request: http://docs.guzzlephp.org/en/stable/request-options.html#delay.

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There is no concurrent version of sleep() in Guzzle Promises out of the box. You can take a look at a library (I'm the developer) which integrates Guzzle with React PHP. With React you can use timers to create "sleep promises" (see sleep_fn).

But if you need just delayed retries, try to use the default retry middleware. Also a usage example.

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Thanks for the advice. I'll check out the React bridge.

The default retry middleware, uses the Guzzle delay option, which uses a `usleep() call. My understanding is that this would block other requests from being processed in the meantime.

My use-case is a domain scanner, so efficient parallel processing is quite important for its overall performance.

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Only the blocking handlers use usleep. The CurlMultiHandler does not.

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You can use GuzzleHttp to send a request to a non-existing server with a certain delay. This can work as an async sleep.

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