
发送异步的 POST 请求
在 PHP 开发中主要是「面向过程」式的开发方式,但请求第三方接口时,有时候并不需要等待第三方接口返回结果才继续执行。如用户购买成功时,我们需要向短信接口,发送一个 post 请求,由短信平台发送一条短信给用户,告知用户支付成功了,因为这类「提醒消息」属于「额外的附加功能」,并不需要在用户支付时「知道」有没有发送提醒成功。
这时候可以使用 Guzzle 的异步请求功能,直接看代码:
public function sms(Request $request) {
$code = $request->input('code');
$client = new Client();
$sid = '9815b4a2bb6d5******8bdb1828644f2';
$time = '20171029173312';
$token = 'af8728c8bc*******12019c680df4b11c';
$sig = strtoupper(md5($sid.$token.$time));
$auth = trim(base64_encode($sid . ":" . $time));
$params = ['templateSMS' => [
'appId' => '12b43**********0091c73c0ab',
'param' => "coding01,$code,30",
'templateId' => '3***3',
'to' => '17689974321'
]
];
$options = json_encode($params, JSON_UNESCAPED_UNICODE);
$data = [
'query' => [
'sig' => $sig
],
'body' => $options,
'headers' => [
'content-type' => 'application/json',
'Authorization' => $auth
]
];
// 发送 post 请求
$promise = $client->requestAsync('POST', 'https://api.ucpaas.com/2014-06-30/Accounts/9815b4a2bb6d5******8bdb1828644f2/Messages/templateSMS', $data);
$promise->then(
function (ResponseInterface $res) {
Log::info('---');
Log::info($res->getStatusCode() . "
");
Log::info($res->getBody()->getContents() . "
");
},
function (RequestException $e) {
Log::info('-__-');
Log::info($e->getMessage() . "
");
}
);
$promise->wait();
return $this->output_json('200', '测试短信 api', []);
}先返回接口数据:

然后再输出 Log:
[2017-10-29 09:53:14] local.INFO: ---
[2017-10-29 09:53:14] local.INFO: 200
[2017-10-29 09:53:14] local.INFO: {"resp":{"respCode":"000000","templateSMS":{"createDate":"20171029175314","smsId":"24a93f323c9*****8608568"}}}最后收到短信信息:

发送多线程异步 POST 请求
「发送多线程异步 POST 请求」在很多场合中使用到的,如:双十一快到了,可以做一些回馈老用户的活动,这是就需要批量的向老用户推送一条模板消息,告诉用户参与哪些活动的。这时候就需要用到多线程异步请求微信公众号接口。
直接上代码:
public function send($templateid, $openid, $url, $data) {
$client = $this->bnotice->getHttp()->getClient();
$requests = function ($open_ids) use ($templateid, $url, $data) {
foreach($open_ids as $v){
try {
yield $this->bnotice
->template($templateid)
->to($v)
->url($url)
->data($data)
->request();
} catch(Exception $e) {
Log::error('sendtemplate:'.$e->getMessage());
}
}
};
$pool = new Pool($client, $requests($openid), [
'concurrency' => 16,
'fulfilled' => function ($response, $index) {
},
'rejected' => function ($reason, $index) {
},
]);
$promise = $pool->promise();
$promise->wait();
}其中 request 方法:
public function request($data = [])
{
$params = array_merge([
'touser' => '',
'template_id' => '',
'url' => '',
'topcolor' => '',
'miniprogram' => [],
'data' => [],
], $data);
$required = ['touser', 'template_id'];
foreach ($params as $key => $value) {
if (in_array($key, $required, true) && empty($value) && empty($this->message[$key])) {
throw new InvalidArgumentException("Attribute '$key' can not be empty!");
}
$params[$key] = empty($value) ? $this->message[$key] : $value;
}
$params['data'] = $this->formatData($params['data']);
$this->message = $this->messageBackup;
$options = json_encode ( $params, JSON_UNESCAPED_UNICODE);
$data = [
'query' => [
'access_token' => $this->getAccessToken()->getToken()
],
'body' => $options,
'headers' => ['content-type' => 'application/json']
];
return function() use ($data) {
return $this->getHttp()->getClient()->requestAsync('POST', $this::API_SEND_NOTICE, $data);
};
}Guzzle 多线程异步请求原型函数,使用 GuzzleHttpPool 对象
use GuzzleHttpPool;use GuzzleHttpClient;use GuzzleHttpPsr7Request;$client = new Client();$requests = function ($total) {
$uri = 'http://127.0.0.1:8126/guzzle-server/perf';
for ($i = 0; $i < $total; $i++) {
yield new Request('GET', $uri);
}};$pool = new Pool($client, $requests(100), [
'concurrency' => 5,
'fulfilled' => function ($response, $index) {
// this is delivered each successful response
},
'rejected' => function ($reason, $index) {
// this is delivered each failed request
},]);// Initiate the transfers and create a promise$promise = $pool->promise();// Force the pool of requests to complete.$promise->wait();总结
有了 Guzzle,极大方便了我们并发异步请求第三方接口。如果时间允许,我们可以看看 Guzzle 源代码,看看是如何实现的。
推荐教程:《PHP教程》
