workerman/http-client

说明

workerman/http-client是一个异步http客户端组件。所有请求响应异步非阻塞，内置连接池，消息请求和响应符合PSR7规范。

安装：

composer require workerman/http-client

示例：

get post request用法

use Workerman\Worker;

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

$worker = new Worker();
$worker->onWorkerStart = function () {
    $http = new Workerman\Http\Client();

    $http->get('https://example.com/', function ($response) {
        var_dump($response->getStatusCode());
        echo $response->getBody();
    }, function ($exception) {
        echo $exception;
    });

    $http->post('https://example.com/', ['key1' => 'value1', 'key2' => 'value2'], function ($response) {
        var_dump($response->getStatusCode());
        echo $response->getBody();
    }, function ($exception) {
        echo $exception;
    });

    $http->request('https://example.com/', [
        'method' => 'POST',
        'version' => '1.1',
        'headers' => ['Connection' => 'keep-alive'],
        'data' => ['key1' => 'value1', 'key2' => 'value2'],
        'success' => function ($response) {
            echo $response->getBody();
        },
        'error' => function ($exception) {
            echo $exception;
        }
    ]);
};
Worker::runAll();

上传文件

<?php
use Workerman\Worker;

require_once 'vendor/autoload.php';

$worker = new Worker();
$worker->onWorkerStart = function () {
    $http = new Workerman\Http\Client();
    // 上传文件
    $multipart = new \Workerman\Psr7\MultipartStream([
        [
            'name' => 'file',
            'contents' => fopen(__FILE__, 'r')
        ],
        [
            'name' => 'json',
            'contents' => json_encode(['a'=>1, 'b'=>2])
        ]
    ]);
    $boundary = $multipart->getBoundary();
    $http->request('http://127.0.0.1:8787', [
        'method' => 'POST',
        'version' => '1.1',
        'headers' => ['Connection' => 'keep-alive', 'Content-Type' => "multipart/form-data; boundary=$boundary"],
        'data' => $multipart,
        'success' => function ($response) {
            echo $response->getBody();
        },
        'error' => function ($exception) {
            echo $exception;
        }
    ]);
};

Worker::runAll();

progress流式返回

<?php
require_once __DIR__ . '/vendor/autoload.php';

use Workerman\Connection\TcpConnection;
use Workerman\Http\Client;
use Workerman\Protocols\Http\Chunk;
use Workerman\Protocols\Http\Request;
use Workerman\Protocols\Http\Response;
use Workerman\Worker;

$worker = new Worker('http://0.0.0.0:1234');
$worker->onMessage = function (TcpConnection $connection, Request $request) {
    $http = new Client();
    $http->request('https://api.ai.com/v1/chat/completions', [
        'method' => 'POST',
        'data' => json_encode([
            'model' => 'gpt-3.5-turbo',
            'temperature' => 1,
            'stream' => true,
            'messages' => [['role' => 'user', 'content' => 'hello']],
        ]),
        'headers' => [
            'Content-Type' => 'application/json',
            'Authorization' => 'Bearer sk-xxx',
        ],
        'progress' => function($buffer) use ($connection) {
            $connection->send(new Chunk($buffer));
        },
        'success' => function($response) use ($connection) {
            $connection->send(new Chunk('')); // 发送空的的chunk代表response结束
        },
    ]);
    $connection->send(new Response(200, [
        //"Content-Type" => "application/octet-stream",
        "Transfer-Encoding" => "chunked",
    ], ''));
};
Worker::runAll();

Optinons 选项

<?php
require __DIR__ . '/vendor/autoload.php';
use Workerman\Worker;
$worker = new Worker();
$worker->onWorkerStart = function(){
    $options = [
        'max_conn_per_addr' => 128, // 每个域名最多维持多少并发连接
        'keepalive_timeout' => 15,  // 连接多长时间不通讯就关闭
        'connect_timeout'   => 30,  // 连接超时时间
        'timeout'           => 30,  // 请求发出后等待响应的超时时间
    ];
    $http = new Workerman\Http\Client($options);

    $http->get('http://example.com/', function($response){
        var_dump($response->getStatusCode());
        echo $response->getBody();
    }, function($exception){
        echo $exception;
    });
};
Worker::runAll();

协程用法

注意
协程用法需要workerman>=5.1，http-client>=3.0，安装swoole或者swow扩展，或者安装composer require revolt/event-loop 以支持Fiber驱动

use Workerman\Worker;

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

$worker = new Worker();
$worker->eventLoop = \Workerman\Events\Swoole::class; // Or \Workerman\Events\Swow::class or \Workerman\Events\Fiber::class
$worker->onWorkerStart = function () {
    $http = new Workerman\Http\Client();

    $response = $http->get('https://example.com/');
    var_dump($response->getStatusCode());
    echo $response->getBody();

    $response = $http->post('https://example.com/', ['key1' => 'value1', 'key2' => 'value2']);
    var_dump($response->getStatusCode());
    echo $response->getBody();

    $response = $http->request('https://example.com/', [
        'method' => 'POST',
        'version' => '1.1',
        'headers' => ['Connection' => 'keep-alive'],
        'data' => ['key1' => 'value1', 'key2' => 'value2'],
    ]);
    echo $response->getBody();
};
Worker::runAll();

当不设置回调函数时，客户端会用同步的方式返回异步请求结果，请求过程不阻塞当前进程，也就是可以并发处理请求。

注意：

1、项目首先要加载require __DIR__ . '/vendor/autoload.php';

2、所有的异步代码只能在workerman启动后的运行环境运行

3、支持基于workerman开发的所有项目，包括Webman、GatewayWorker、PHPSocket.io等

webman中的用法

如果你需要在webman中使用异步http请求并将结果返回给前端，参考以下用法

<?php
namespace app\controller;

use support\Request;
use support\Response;
use Workerman\Protocols\Http\Chunk;

class IndexController
{
    public function index(Request $request)
    {
        $connection = $request->connection;
        $http = new \Workerman\Http\Client();
        $http->get('https://example.com/', function ($response) use ($connection) {
            $connection->send(new Chunk($response->getBody()));
            $connection->send(new Chunk('')); // 发送空的的chunk代表response结束
        });
        return response()->withHeaders([
            "Transfer-Encoding" => "chunked",
        ]);
    }
}

以上用法是先给客户端返回一个带chunked的http头，然后将数据以chunk的方式发送给客户端。

在webman中请求OpenAI接口并流式返回

参考 https://www.workerman.net/plugin/157