php-guzzleHow to use PHP Guzzle to make a batch request?

PHP Guzzle can be used to make batch requests. This is done by creating an array of requests and passing it to the send() method of the GuzzleHttp\Client class.

$client = new GuzzleHttp\Client();
$requests = [
    'req1' => $client->getAsync('http://httpbin.org/get'),
    'req2' => $client->getAsync('http://httpbin.org/get?foo=bar'),
    'req3' => $client->getAsync('http://httpbin.org/get?baz=bam')
];
$results = GuzzleHttp\Promise\unwrap($requests);

The output of the above code will be an array of responses:

Array
(
    [req1] => GuzzleHttp\Psr7\Response Object
        (
            [reasonPhrase:GuzzleHttp\Psr7\Response:private] => OK
            ...
        )
    [req2] => GuzzleHttp\Psr7\Response Object
        (
            [reasonPhrase:GuzzleHttp\Psr7\Response:private] => OK
            ...
        )
    [req3] => GuzzleHttp\Psr7\Response Object
        (
            [reasonPhrase:GuzzleHttp\Psr7\Response:private] => OK
            ...
        )
)

Code explanation

1. $client = new GuzzleHttp\Client(); - This creates a new instance of the GuzzleHttp\Client class.
2. $requests = [ ... ] - This creates an array of requests.
3. $results = GuzzleHttp\Promise\unwrap($requests); - This sends the requests and returns an array of responses.

Helpful links

• Guzzle Documentation

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