Node scripts added

Node App/index.js

@@ -0,0 +1,95 @@
+const express = require("express");
+const bodyParser = require("body-parser");
+const jwt = require("jsonwebtoken");
+const dotenv = require("dotenv");
+
+dotenv.config();
+
+const app = express();
+
+app.use(bodyParser.json());
+
+const PORT = process.env.PORT || 3000;
+
+app.listen(PORT, () => {
+  console.log(`Server is up and running on port ${PORT}!`);
+});
+
+const router = express.Router();
+
+app.get("*", (req, res) => {
+  res.json({ message: "Working!" });
+});
+
+app.use("/", router);
+
+router.post("/login", (req, res) => {
+  const { id, password } = req.body;
+  if (id === "[email protected]" && password === "abcdef") {
+    const token = generateToken(req.body.id);
+    res.status(200).json({ token, message: "Login successful!" });
+  } else {
+    res.status(401).json({ message: "Invalid password!" });
+  }
+});
+
+const generateToken = (id) => {
+  return jwt.sign(
+    {
+      id,
+      exp: (Date.now() + 24 * 3600 * 1000) / 1000, //24 hours
+    },
+    process.env.JWT_SECRET
+  );
+};
+
+//ACCESSING PROTECTED ROUTES
+// router.post("/protected1", (req, res) => {
+//   try {
+//     const token = req.headers.authorization;
+//     if (!token) throw { message: "Token missing!" };
+
+//     const verify = jwt.verify(token, process.env.JWT_SECRET);
+
+//     res.json({ message: "Authorized User!" });
+//   } catch (err) {
+//     res.status(401).json(err);
+//   }
+// });
+
+// router.post("/protected2", (req, res) => {
+//   try {
+//     const token = req.headers.authorization;
+//     if (!token) throw { message: "Token missing!" };
+
+//     const verify = jwt.verify(token, process.env.JWT_SECRET);
+
+//     res.json({ message: "Authorized User!" });
+//   } catch (err) {
+//     res.json(err);
+//   }
+// });
+
+//MIDDLEWARE
+const isAuthenticated = (req, res, next) => {
+  try {
+    const token = req.headers.authorization;
+    if (!token) throw { message: "Token missing!" };
+
+    const verify = jwt.verify(token, process.env.JWT_SECRET);
+
+    req.id = verify.id;
+
+    next();
+  } catch (err) {
+    res.json(err);
+  }
+};
+
+router.post("/protected1", isAuthenticated, (req, res) => {
+  res.json({ message: "You're authenticated", id: req.id });
+});
+
+router.post("/protected2", isAuthenticated, (req, res) => {
+  res.json({ message: "You're authenticated", id: req.id });
+});