[express] router

express router

 

//index.js

import express from "express";

app.listen(3000);

app.get("/", (req, res) => res.send("Hi from home"));

// http://localhost:3000 으로 GET 되면 response 로 Hi from home 메세지 출력

 

조각조각 분할하여

route, router, controller 로 나눌 수 있다.

 

// routes.js

const HOME = "/"

const routes = {
home:HOME
}

export default routes

// controller.js

export const home = (req, res) => res.send("Hi from home")

// homeRouter.js

import express from "express"
import routes from "routes"
import { home }  from "controller"

const homeRouter = express.Router();

homeRouter.get(routes.home, home)

 

 

//index.js

import express from "express";
import routes from "routes";
import homeRouter from "homeRouter";

app.listen(3000);

app.use(routes.home, homeRouter);
//router 를 쓸때는 app.use 로 사용함
//여기서 homeRouter 로 연결되고 라우터에서 컨트롤러로 연결