Implement auth with jwt and add endpoints

helpers/authJwt.js

@@ -0,0 +1,36 @@
+const jwt = require('jsonwebtoken');
+const { jwt_secret } = require('../config/config');
+
+module.exports = {
+	authenticate,
+	generateToken,
+};
+
+function generateToken(user) {
+	const payload = {
+		username: user.username,
+		email: user.email
+	};
+
+	const options = {
+		expiresIn: '30d',
+	};
+
+	return jwt.sign(payload, jwt_secret, options);
+}
+
+function authenticate(req, res, next) {
+	const token = req.get('Authorization');
+
+	if (token) {
+		jwt.verify(token, jwt_secret, (err, decoded) => {
+			if (err) return res.status(401).json(err);
+			req.decoded = decoded;
+			next();
+		});
+	} else {
+		return res.status(401).json({
+			error: 'No token provided, must be set on the Authorization Header',
+		});
+	}
+}