@midwayjs-plus/throttler
v3.9.3
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midway throttler base on traffic-throttler
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midway-throttler
midway request throttler component, based on traffic-throttler。 It's core design base on @nestjs/throttler, and API will same as @nestjs/throttler.
这是基于 midway 3.0 的限流器组件模块,基于 traffic-throttler 封装。核心逻辑来自 @nestjs/throttler, API 用法也尽量与其保持一致
Install (安装)
npm i midway-throttler --save
Usage(用法)
1. 引入组件
首先在 src/configuration.ts 中引入组件,并且配置全局守卫
import * as throttler from 'midway-throttler';
import { ThrottlerGuard } from 'midway-throttler';
import * as koa from '@midwayjs/koa';
@Configuration({
imports: [koa, throttler], //import throttler 组件
importConfigs: [join(__dirname, './config')],
})
export class ContainerLifeCycle {
@App()
app: koa.Application;
async onReady() {
//全局守卫配置
this.app.useGuard(ThrottlerGuard);
}
}
2. 配置相关参数
在 config.default.ts 配置文件中,配置如下
throttler: {
ttl?: number, //时间窗口,在该时间段内限制 limit 个数的请求, 超出限流
limit?: number, //请求个数限制
storage?: IThrottlerStorageOption, //内部存储配置,支持 memory | redis 两种存储方式
errorMsg?: string, //超出限流后的报错信息
}
针对某些 Controller 或者某些 Method, 支持
- 想覆盖全局配置,可以通过 Throttle 装饰器进行配置修改;
- 想要不限流,可以通过 SkipThrottle 装饰器放开限流
import { Controller, Get } from '@midwayjs/decorator';
import { SkipThrottle, Throttle } from 'midway-throttler';
@Throttle(2, 20) //重新配置
@Controller('/')
export class HomeController {
@Throttle(1, 10) //重新配置
@Get('/')
async home(): Promise<string> {
return 'Hello Midwayjs!';
}
@SkipThrottle(true) //该请求不限流
@Get('/skip')
async doSkip(): Promise<string> {
return 'I am skip, no throttle';
}
}
Example(例子)
- cd example
- npm i
- npm run dev