logger中间件

书写请求日志中间件

/**
 * 调用日志中间价
 */
import { Injectable , NestMiddleware } from "@nestjs/common";
import { Request , Response } from 'express'
@Injectable()
export class LoggerMiddleware implements NestMiddleware {
    use(req:Request ,res:Response,next:()=>void){
        const { method ,path } = req;
        console.log(`${method} ${path}`);
        next();
    }
}

配置中间件

import { MiddlewareConsumer, Module, RequestMethod } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { TemplateController } from './template/template.controller';
//  导入中间价
import { LoggerMiddleware} from './common/middleware/logger.middleware'
@Module({
  imports: [],
  controllers: [AppController, TemplateController, ],
  providers: [AppService],
})
//    配置中间件
export class AppModule {
  configure(consumer:MiddlewareConsumer){
    //  为template添加中间价
    consumer
    .apply(LoggerMiddleware)  //  应用中间件
    .exclude({                //  排除的路径
      path:'template',
      method:RequestMethod.POST,
    })
    .forRoutes('template')    //  监听路径
  }
}