Egg.js中间件详解与应用实例

// app/middleware/middlewareOne.js
module.exports = (options, app) => {
    return async function middlewareOne(ctx, next) {
        console.log("==request One==");

        console.log(ctx.url)

        if(ctx.url === '/'){
            await next();
        }

        console.log("==response One==");
    }
};

// config/config.default.js
exports.middleware = ['middlewareOne']; // 数组的顺序为中间件执行的顺序

'use strict';

/**
 * @param {Egg.Application} app - egg application
 */
module.exports = app => {
  const { router, controller } = app;
  const gzip = app.middleware.middlewareOne();
  router.get('/', gzip, controller.home.index);
  router.get('/zyu', controller.home.zyu);
  router.get('/test', controller.test.index);
};