PHP code example of yzh52521 / webman-throttle

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

yzh52521 / webman-throttle example snippets

//cat config/middleware.php

return [
    // 全局中间件
    '' => [
        // ... 这里省略其它中间件
        app\middleware\Throttle::class,
    ]
];

// cat config/plugin/yzh52521/throttle/app.php
// 中间件配置
return [

    // 缓存键前缀，防止键值与其他应用冲突
    'prefix' => 'throttle_',
	
    // 缓存的键，true 表示使用来源ip (request->getRealIp(true))
    'key' => true,
	
    // 要被限制的请求类型, eg: GET POST PUT DELETE HEAD
    'visit_method' => ['GET'],
	
    // 设置访问频率，例如 '10/m' 指的是允许每分钟请求10次。值 null 表示不限制,
	// eg: null 10/m  20/h  300/d 200/300
    'visit_rate' => '100/m',

    // 响应体中设置速率限制的头部信息，含义见：https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting
    'visit_enable_show_rate_limit' => true,
	
    // 访问受限时返回的响应( type: null|callable )
    'visit_fail_response' => function (Throttle $throttle, Request $request, int $wait_seconds): Response {
        return response('Too many requests, try again after ' . $wait_seconds . ' seconds.', 429);
    },
	
    /*
     * 设置节流算法，组件提供了四种算法：
     *  - CounterFixed ：计数固定窗口
     *  - CounterSlider: 滑动窗口
     *  - TokenBucket : 令牌桶算法
     *  - LeakyBucket : 漏桶限流算法
     */
    'driver_name' => CounterFixed::class,
	
    // Psr-16通用缓存库规范: https://blog.csdn.net/maquealone/article/details/79651111
    // Cache驱动必须符合PSR-16缓存库规范，最低实现get/set俩个方法 (且需静态化实现)
    //    static get(string $key, mixed $default=null)
    //    static set(string $key, mixed $value, int $ttl=0);

    //webman默认使用 symfony/cache作为cache组件(https://www.workerman.net/doc/webman/db/cache.html)
	'cache_drive' => support\Cache::class,
    
    //使用ThinkCache
    //'cache_drive' => think\facade\Cache::class,
	
];

'key' => function($throttle, $request) {
    return $request->session()->get('user_id');
},

'key' => function($throttle, $request) {
    return  implode('/', [
		$request->controller,
		$request->action,
		$request->getRealIp($safe_mode=true)
	]);
},

//'key' => 'controller/action/ip' //上述配置的快捷实现

'key' => function($throttle, $request) {
    $throttle->setRate('5/m');                      // 设置频率
    $throttle->setDriverClass(CounterSlider::class);// 设置限流策略
    return true;
},