How to perform concurrent POST requests with Guzzle? - php

Question

I need help in following situation:
I have to send POST requests to an API endpoint, which can handle requests simultaneous. But takes time for each. To reduce time, I want to send multiple POST request at a time.
Here are some code fragments:
use GuzzleHttp\Pool as GuzzlePool;
use GuzzleHttp\Client as GuzzleClient;
use GuzzleHttp\Psr7\Request as GuzzleRequest;
[...]
foreach ($aRequestParams as $sRequestParam) {
$aRequestList[] = new GuzzleRequest('POST', $sRoute,
[
// 'form_params' => [
// 'jsonString' => $sRequestParam
// ]
'body' => $sRequestParam
// 'multipart' => [
// [
// 'name' => 'jsonString',
// 'contents' => $sRequestParam
// ]
// ]
]
);
}
$oGuzzlePool = new GuzzlePool(new GuzzleClient(), $aRequestList, [
'concurrency' => 8,
'fulfilled' => [$this, 'processFulfilledCallback'],
'rejected' => [$this, 'processRejectedCallback']
]);
$oPromise = $oGuzzlePool->promise();
$oPromise->wait();
The callback functions are called after request, but there is the POST payload missing. How do I have to configure the GuzzleRequest?

Answer 1

I use this code and it seems to work:
$oGuzzleClient = new GuzzleClient();
$aRequestList = function() use ($oGuzzleClient, $aRequestParams, $sRoute) {
foreach ($aRequestParams as $sRequestParam) {
yield function() use ($oGuzzleClient, $sRequestParam, $sRoute) {
return $oGuzzleClient->postAsync($sRoute, [
'form_params' => [
'jsonString' => $sRequestParam
]
]);
};
}
};
$oGuzzlePool = new GuzzlePool($oGuzzleClient, $aRequestList(), [