guzzlehttp/guzzle 在 ->send() 之前发送 HTTP 请求答案

【问题标题】：guzzlehttp/guzzle sends HTTP request before ->send()guzzlehttp/guzzle 在 ->send() 之前发送 HTTP 请求
【发布时间】：2015-04-14 05:02:00
【问题描述】：

我正在尝试使用 Guzzle 来消耗 RESTful API。阅读Guzzle documentation，我调用get和post等方法配置请求，然后调用send实际运行HTTP请求。

$request = $client->post('http://httpbin.org/post', array(), array(
    'custom_field' => 'my custom value',
    'file_field'   => '@/path/to/file.xml'
));

$response = $request->send();

但是，在我的情况下，似乎在调用post 期间正在发送一个没有字段的 HTTP 请求。这是我的代码

define('CUST_ID', 'blahblah');
define('API_KEY', 'verysecure');

// Construct the underlying Guzzle client
$oClient = new \GuzzleHttp\Client(
    ['base_url' =>
    ['http://api.postmates.com/{version}/', ['version' => 'v1']],
    'defaults' => [
        // HTTP Basic auth header, username is api key, password is blank
        'auth'    => [API_KEY, ''],
    ]]);
$oRq = $oClient->post(
    "customers/" . CUST_ID . "/delivery_quotes",
    [], 
    ['pickup_address'  => '232 E Manhattan Ave, Denver, CO 80203',
     'dropoff_address' => '4400 Midwest St, Denver, CO 80205']);

发出的请求（无 POST 参数）

POST /v1/customers/blahblah/delivery_quotes HTTP/1.1
Host: api.postmates.com
Authorization: Basic verysecure==
User-Agent: Guzzle/5.2.0 curl/7.37.1 PHP/5.6.0
Content-Length: 0

和回应

HTTP/1.1 400 BAD REQUEST
Content-Type: application/json
Date: Fri, 13 Feb 2015 07:32:16 GMT
Server: nginx/1.1.19
Content-Length: 205
Connection: keep-alive

{"kind": "error", "code": "invalid_params", "params": {"dropoff_address": "This field is required.", "pickup_address": "This field is required."}, "message": "The parameters of your request were invalid."}

所以看起来我正在验证，但没有传递任何帖子参数。我尝试使用 setPostField 方法设置 POST 字段，但没有成功。正如我所说，在这种情况下，似乎在调用 setPostField 之前发送了一个 HTTP 请求，在这两种情况下，在我调用 send 之前发送了一个 HTTP 请求。

我试过 guzzlehttp/guzzle 5.2.0 和 5.0.0。

【问题讨论】：

标签： php rest composer-php guzzle postmates

【解决方案1】：

哇，看起来我在看两份文档，一份给the newer GuzzleHttp\Client，一份给the older Guzzle\Http\Client。与新库的最大区别在于，如果您想推迟 HTTP 请求的调用，则需要调用 createRequest。

新库下的工作代码

define('CUST_ID', 'blahblah');
define('API_KEY', 'verysecure');

// Construct the underlying Guzzle client
$oClient = new GuzzleHttp\Client(
    ['base_url' =>
    ['http://api.postmates.com/{version}/', ['version' => 'v1']],
    'defaults' => [
        // HTTP Basic auth header, username is api key, password is blank
        'auth'    => [API_KEY, ''],
    ]]);

// Create the request
$oRq = $oClient->createRequest(
    'POST',
    "customers/" . CUST_ID . "/delivery_quotes",
    [ 'body' =>
        ['pickup_address'  => '232 E Manhattan Ave, Denver, CO 80203',
         'dropoff_address' => '4400 Midwest St, Denver, CO 80205']]);

// Send the request
$oRsp = $oClient->send($oRq);

【讨论】：