Guzzle async POST requests not being sent - php

Question

I'm trying to make 4 async search calls (POST HTTP request) to search 4 database tables at the same time, then wait for all of them to finish (asynchronously), combine the results and return them to the user.
Here is my code:
public static function async_search($search_words)
{
$curl = new CurlMultiHandler();
$client = new Client([
'base_uri' => 'https://mytestapi.com/',
'timeout' => 0,
]);
$finished_promisesArr = array(
'search1' => 0,
'search2' => 0,
'search3' => 0,
'search4' => 0,
);
$bodyArr = array(
'search_words' => $search_words,
);
$search1_promise = $client->requestAsync('POST', 'search1', array(
'form_params' => $bodyArr,
))->then(
function(ResponseInterface $response) {
echo 'got response';
$finished_promisesArr['search1'] = 1;
},
function (RequestException $e) {
$finished_promisesArr['search1'] = 1;
}
);
$search2_promise = $client->requestAsync('POST', 'search2', array(
'form_params' => $bodyArr,
))->then(
function(ResponseInterface $response) {
$finished_promisesArr['search2'] = 1;
},
function (RequestException $e) {
$finished_promisesArr['search2'] = 1;
}
);
$search3_promise = $client->requestAsync('POST', 'searchCompanies', array(
'form_params' => $bodyArr,
))->then(
function(ResponseInterface $response) {
$finished_promisesArr['search3'] = 1;
},
function (RequestException $e) {
$finished_promisesArr['search3'] = 1;
}
);
$search4_promise = $client->requestAsync('POST', 'searchCompaniesByIndustries', array(
'form_params' => $bodyArr,
))->then(
function(ResponseInterface $response) {
$finished_promisesArr['search4'] = 1;
},
function (RequestException $e) {
$finished_promisesArr['search4'] = 1;
}
);
$promisesAggregate = GuzzleHttp\Promise\all([$search1_promise, $search2_promise, $search3_promise, $search4_promise]);
foreach ($promisesAggregate as $agg) {
$curl->tick();
}
$keep_running = true;
while ($keep_running) {
$all_processes_finished = true;
foreach ($finished_promisesArr as $promise => $status) {
if (!$status) {
$all_processes_finished = false;
}
}
if ($all_processes_finished) {
$keep_running = false;
}
}
return array();
}
Please ignore the empty array in the result and the fact that I'm not doing anything with the response.
I've got logs on the server methods and they're not even being called, and the loop continues to run infinitely.
Note that when I use the request method instead of requestAsync I do get the correct result.
Any ideas here?
Thank's!

Answer 1

Just call $promisesAggregate->wait() after you get it from GuzzleHttp\Promise\all function.
It means the same as your code, but does it right (your wait code calls ->tick() only once and this is the mistake).