Xây dựng Json Web Token trong NodeJS

ACCESS_TOKEN_SECRET = froggydev1210

var jwt = require('jsonwebtoken');
var dotent = require('dotenv');
dotent.config();

class JwtModel {
	static generateToken(data, time) {
		return jwt.sign(data, process.env.ACCESS_TOKEN_SECRET, { expiresIn: time });
	}

	static generateRefreshToken(data, time) {
		return jwt.sign(data, process.env.ACCESS_TOKEN_SECRET, { expiresIn: time });
	}
}

module.exports = JwtModel;

var db = require('./database');

var queryLogin = ((email, password) =>
	`SELECT u.fullname, u.email, GROUP_CONCAT(r.name) AS roles
	FROM roles r
	INNER JOIN userrole ur ON r.id = ur.roleid
	INNER JOIN account u ON ur.username like u.username
	WHERE u.email like '${email}' and u.password like '${password}' 
	GROUP BY u.email;`
)

class UserModel {
	static login(user) {
		console.log("getdatabase: " + { user });
		return new Promise((resolve, reject) => {
			let sql = queryLogin(user.email, user.password);
			console.log(user);
			db.query(sql, function (err, data) {
				if (err) {
					reject(err);
				}
				resolve(data);
			});
		});
	}
}

module.exports = UserModel;

const UserModel = require('../models/userModel');
var jwtModel = require('../models/jwtModel');

class UserController {
	static async login(req, res) {
		try {
			const user = await UserModel.login(req.body);
			if (user.length === 0) {
				return res.status(404).json({ error: 'User not found' });
			}
			let userRes = {
				email: user[0].email,
				roles: user[0].roles.split(',') 
				// "ROLE_ADMIN,ROLE_USER" -> ["ROLE_ADMIN", "ROLE_USER"]
			}
			console.log(userRes);
			const accessToken = jwtModel.generateToken(userRes, '5h');
			const refreshToken = jwtModel.generateRefreshToken(userRes, '10h');
			let resp = {
				fullname: user[0].fullname,
				token: accessToken,
				refreshToken: refreshToken
			}
			res.json(resp);
		} catch (error) {
			console.error(error);
			res.status(500).json({ error: 'Internal server error' });
		}
	}
}

module.exports = UserController;

var express = require('express');
var router = express.Router();
var loginCtrl = require('../controllers/UserController');

/* GET users listing. */
router.get('/', loginCtrl.getUser);
/* 
	RETURN: Token when login success
	{
		fullname: Tran Huu Dang
		token: eyhsujbjsv...nsje
		refreshToken: eyvkdnrks...jujee
	}
*/
router.post('/', (req, res) => {
	loginCtrl.login(req, res);
});


module.exports = router;

$(document).ready(function () {
	function delay(ms) {
		return new Promise(function (resolve) {
			setTimeout(resolve, ms);
		})
	}
	$("#loginForm").submit(function (e) {
		e.preventDefault(); // Ngăn chuyển hướng mặc định của form

		var formData = {
			email: $("input[name='email']").val(),
			password: $("input[name='password']").val()
		};

		$.ajax({
			url: 'http://localhost:3000/login',
			method: 'POST',
			data: formData,
			dataType: 'json',
			success: function (response) {
				console.log(response)
				//Này là thông báo với data nữa cần lưu data thì lây xài
				// xuất thhong báo
				let lastname = response.fullname;
				alert('Chào ' + lastname);
				saveCookie('fullname', lastname.substring(lastname.lastIndexOf(" ")));
				localStorage.setItem('token', response.token);
				localStorage.setItem('refreshToken', response.refreshToken);
				//Cho 2s
				delay(2000).then(res => {
					// chuyển trang sau 2s
					window.location.href = "#/main";
				});
			},

			error: function (xhr, status, error) {
				// Xử lý lỗi
				console.error(error);
			}
		});
	});
});

npm start