swoole怎样封装写接口

<?php

use \Swoole\Coroutine\Http\Server as HttpServer;
use \Swoole\Http\Request;
use \Swoole\Http\Response;

class BaseApiServer
{
    protected $httpServer;

    public function __construct($host, $port)
    {
        $this->httpServer = new HttpServer($host, $port, false);
        $this->httpServer->set([
            'worker_num' => swoole_cpu_num(),
            'max_request' => 50000,
            'dispatch_mode' => 3,
            'open_http2_protocol' => true,
        ]);
    }

    public function start()
    {
        $this->httpServer->on('Request', [$this, 'onRequest']);
        $this->httpServer->start();
    }

    protected function jsonResponse(Response $response, $status = 200, $data = [], $msg = 'ok')
    {
        $result = [
            'code' => $status,
            'message' => $msg,
            'data' => $data
        ];
        $response->header('Content-Type', 'application/json;charset=utf-8');
        $response->end(json_encode($result, JSON_UNESCAPED_UNICODE));
    }

    protected function exceptionHandler(Response $response, $exception)
    {
        $this->jsonResponse($response, 500, [], $exception->getMessage());
    }

    protected function retry(\Closure $callback, $retryCount = 3, $interval = 300, $default = [])
    {
        $current = 0;
        while ($current < $retryCount) {
            try {
                $result = $callback();
                if ($result) {
                    return $result;
                }
            } catch (\Throwable $throwable) {
                //ignore
            }

            $current++;
            if ($current < $retryCount) {
                usleep($interval * 1000);
            }
        }

        return $default;
    }

    public function onRequest(Request $request, Response $response)
    {
        try {
            $this->handle($request, $response);
        } catch (\Throwable $throwable) {
            $this->exceptionHandler($response, $throwable);
        }
    }

    protected function onNotFound(Request $request, Response $response)
    {
        $this->jsonResponse($response, 404);
    }

    protected function handle(Request $request, Response $response)
    {
        $url = $request->server['request_uri'];
        $method = $request->server['request_method'];

        if (method_exists($this, $method . ucfirst($url))) {
            $this->{$method . ucfirst($url)}($request, $response);
        } else {
            $this->onNotFound($request, $response);
        }
    }
}

<?php

use \Swoole\Http\Request;
use \Swoole\Http\Response;

class UserApiServer extends BaseApiServer
{
    public function getUser(Request $request, Response $response)
    {
        $userId = $request->get['userId'];
        $result = $this->retry(function () use ($userId) {
            // TODO: 从数据库或缓存中获取用户信息
            return [
                'id' => $userId,
                'name' => 'demo',
                // ...
            ];
        });
        $this->jsonResponse($response, 200, $result);
    }
}

<?php

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

$server = new UserApiServer('0.0.0.0', 9501);

$server->start();