117. (NodeJs) [Mac Os] [Session] : express session 세션 값 삭제 및 페이지 Redirect 리다이렉트 수행 실시

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[개발 환경 설정]

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개발 툴 : VS CODE

개발 언어 :NodeJs

 

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[사전) NodeJS 모듈 추가 방법]

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https://blog.naver.com/kkh0977/223336146203

115. (NodeJs) [Mac Os] [Session] : express session 모듈 설치 방법 설명

 

 

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[사전) NodeJS 프로젝트 설정 방법]

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[app.js : 소스 코드]

 

// ----------------------------------------------------------------------------------------------

// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
const express = require('express')
const app = express()



// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
app.set('view engine', 'ejs') // [Page] : [Render]
app.set('views', './views') // [Page] : [Render]



// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
var bodyParser = require('body-parser'); // [body-parser 사용]

app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());



// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
var nocache = require('nocache'); // [nocache 사용]
app.use(nocache());



// ---------------------------------------
// [모듈 추가]
// ---------------------------------------
const session = require('express-session'); // [세션 추가]

app.use(session({
    secret: 'twok2k0123456789', // [세션 암복호화 키]
    resave: false, // [세션 데이터가 바뀌기 전까지는 세션 저장소에 값을 저장하지 않음]
    saveUninitialized: true, // [세션이 필요하기 전까지는 세션을 구동시키지 않음]$
    cookie: { secure: false } // [브라우저 쿠키 설정]
}))

// ----------------------------------------------------------------------------------------------

// [Get] : Path = [/] : http://localhost:3000/
app.get('/', function (req, res) {
    console.log("")
    console.log("==============================================================================")
    console.log("[Server] :: [App] :: [Path = /] :: [Start]")
    console.log("==============================================================================")
    console.log("")

    try {

        res.status(200).send(JSON.stringify({"result" : "Success"})); // [http 반환]
        
    }
    catch (err) {
        res.status(500).send(JSON.stringify({"result" : err})); // [http 반환]
    }
    
})

// ----------------------------------------------------------------------------------------------

// [Get] : Path = [/login] : http://localhost:3000/login?id=admin&pw=1234
app.get('/login', function (req, res) {
    console.log("")
    console.log("==============================================================================")
    console.log("[Server] :: [App] :: [Path = /login] :: [Start]")
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Headers] :: " + JSON.stringify(req.headers))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Session] :: " + JSON.stringify(req.session))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Cookies] :: " + JSON.stringify(req.cookies))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Query] :: " + JSON.stringify(req.query))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Body] :: " + JSON.stringify(req.body))
    console.log("==============================================================================")
    console.log("")


    try {

        // [파라미터 값 확인]
        const { id, pw } = req.query; 

        // [세션 값 확인]
        if (id != undefined && id != ""){

            if(req.session.user){ // [세션 이미 존재함]
                console.log("")
                console.log("==============================================================================")
                console.log("[Server] :: [App] :: [Path = /login] :: [Session] : [OK]")
                console.log("--------------------------------------------------------------------------")
                console.log(req.session.user)
                console.log("==============================================================================")
                console.log("")
            }
            else { // [세션 없음 >> 세션 생성]

                req.session.user = id; // [세션 생성]

                console.log("")
                console.log("==============================================================================")
                console.log("[Server] :: [App] :: [Path = /login] :: [Session] : [NO]")
                console.log("==============================================================================")
                console.log("")
            }

            // [response 반환]
            res.status(200).send(JSON.stringify({"result" : id})); // [http 반환]

        }
        else {

            res.status(403).send(JSON.stringify({"result" : "id, pw error"})); // [http 반환]

        }
        
    }
    catch (err) {
        res.status(500).send(JSON.stringify({"result" : err})); // [http 반환]
    }
    
})

// ----------------------------------------------------------------------------------------------

// [Get] : Path = [/delSession] : http://localhost:3000/delSession
app.get('/delSession', function (req, res) {
    console.log("")
    console.log("==============================================================================")
    console.log("[Server] :: [App] :: [Path = /delSession] :: [Start]")
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Headers] :: " + JSON.stringify(req.headers))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Session] :: " + JSON.stringify(req.session))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Cookies] :: " + JSON.stringify(req.cookies))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Query] :: " + JSON.stringify(req.query))
    console.log("--------------------------------------------------------------------------")
    console.log("[INPUT] :: [Body] :: " + JSON.stringify(req.body))
    console.log("==============================================================================")
    console.log("")


    try {

        // [세션 값 확인]
        if(req.session){
            req.session.destroy(()=>{
                res.redirect('/'); // [리다이렉트 수행]
            });
        }
        else {
            res.status(200).send(JSON.stringify({"result" : "제거할 세션이 없습니다"})); // [http 반환]
        }
        
    }
    catch (err) {
        res.status(500).send(JSON.stringify({"result" : err})); // [http 반환]
    }
    
})

// ----------------------------------------------------------------------------------------------

// [Server] : [Start]
//*
app.listen(3000, function () {
    console.log("")
    console.log("==============================================================================")
    console.log("[Server] :: [Port = 3000] :: [Start]")
    console.log("==============================================================================")
    console.log("")
})
// */

// ----------------------------------------------------------------------------------------------

 

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[결과 출력]

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