Question

如何使用Guzzle 6在以下条件下创建5个异步请求：

所有请求同时开始
我希望所有请求的超时值为500毫秒。如果一个请求超时，我不想让它中断其他请求
如果一个请求返回非200，我就不想让它中断其他请求。
所有请求都在不同的域上...（所以我不确定这与base_uri设置是否匹配...

如果所有5个请求都返回200OK <500ms，那么我希望能够遍历他们的响应...

但是，如果说其中2个非200，并且其中1个超时（超过500毫秒），我希望仍然能够访问2个成功响应的响应。

编辑到目前为止，除超时仍在引发异常之外，一切正常

这是我到目前为止的情况：

<?php

  require __DIR__.'/../vendor/autoload.php';

  use GuzzleHttp\Client;
  use GuzzleHttp\Promise;

  $client = new Client([
    'http_errors'     => false,
    'connect_timeout' => 1.50, //////////////// 0.50
    'timeout'         => 2.00, //////////////// 1.00
    'headers' => [
      'User-Agent' => 'Test/1.0'
    ]
  ]);

  // initiate each request but do not block
  $promises = [
    'success'            => $client->getAsync('https://httpbin.org/get'),
    'success'            => $client->getAsync('https://httpbin.org/delay/1'),
    'failconnecttimeout' => $client->getAsync('https://httpbin.org/delay/2'),
    'fail500'            => $client->getAsync('https://httpbin.org/status/500'),
  ];

  // wait on all of the requests to complete. Throws a ConnectException if any
  // of the requests fail
  $results = Promise\unwrap($promises);

  // wait for the requests to complete, even if some of them fail
  $results = Promise\settle($promises)->wait();

Answer 1

Guzzle在池中提供了fulfilled和rejected callabcks。在这里，我根据您的值进行了测试，请访问Guzzle docs了解更多信息：

    $client = new Client([
        'http_errors'     => false,
        'connect_timeout' => 0.50, //////////////// 0.50
        'timeout'         => 1.00, //////////////// 1.00
        'headers' => [
          'User-Agent' => 'Test/1.0'
        ]
      ]);

$requests = function ($total) {
    $uris = [
        'https://httpbin.org/get',
        'https://httpbin.org/delay/1',
        'https://httpbin.org/delay/2',
        'https://httpbin.org/status/500',
        ];
    for ($i = 0; $i < count($uris); $i++) {
        yield new Request('GET', $uris[$i]);
    }
};

$pool = new Pool($client, $requests(8), [
    'concurrency' => 10,
    'fulfilled' => function ($response, $index) {
        // this is delivered each successful response
        print_r($index."fulfilled\n");
    },
    'rejected' => function ($reason, $index) {
        // this is delivered each failed request
        print_r($index."rejected\n");
    },
]);
// Initiate the transfers and create a promise
$promise = $pool->promise();
// Force the pool of requests to complete.
$promise->wait();

响应

0fulfilled
3fulfilled
1rejected
2rejected

如果您想在上面使用代码，也可以在$ promises中传递响应状态，这是一个示例：

use Psr\Http\Message\ResponseInterface;
use GuzzleHttp\Exception\RequestException;
....
$client = new Client([
    'http_errors'     => false,
    'connect_timeout' => 1.50, //////////////// 0.50
    'timeout'         => 2.00, //////////////// 1.00
    'headers' => [
      'User-Agent' => 'Test/1.0'
    ]
  ]);

            $promises = [
        'success' => $client->getAsync('https://httpbin.org/get')->then(
            function (ResponseInterface $res) {
                echo $res->getStatusCode() . "\n";
            },
            function (RequestException $e) {
                echo $e->getMessage() . "\n";
                echo $e->getRequest()->getMethod();
            }
        )
        ,
        'success' => $client->getAsync('https://httpbin.org/delay/1')->then(
            function (ResponseInterface $res) {
                echo $res->getStatusCode() . "\n";
            },
            function (RequestException $e) {
                echo $e->getMessage() . "\n";
                echo $e->getRequest()->getMethod();
            }
        ),
        'failconnecttimeout' => $client->getAsync('https://httpbin.org/delay/2')->then(
            function (ResponseInterface $res) {
                echo $res->getStatusCode() . "\n";
            },
            function (RequestException $e) {
                echo $e->getMessage() . "\n";
                echo $e->getRequest()->getMethod();
            }
        ),
        'fail500' => $client->getAsync('https://httpbin.org/status/500')->then(
            function (ResponseInterface $res) {
                echo $res->getStatusCode() . "\n";
            },
            function (RequestException $e) {
                echo $e->getMessage() . "\n";
                echo $e->getRequest()->getMethod();
            }
        ),
      ];

  $results = Promise\settle($promises)->wait();

如何使用GuzzleHttp执行并发请求

1 个答案: