setup auth routes, setup mongodb, created signup + login + logout end…

…points

.env

@@ -1 +1,5 @@
-PORT=8000
+PORT=5000
+MONGO_DB_URI=mongodb+srv://michelleli12315:[email protected]/chat-app-db?retryWrites=true&w=majority&appName=Cluster0
+JWT_SECRET=iOnLS5F/ucJ/Ez8HoMVclNLcsRdieR7XPtHhv1lbyME=
+
+NODE_ENV=development

backend/controllers/auth.controller.js

@@ -0,0 +1,91 @@
+import bcrypt from "bcryptjs";
+import User from "../models/user.model.js";
+import generateTokenAndSetCookie from "../utils/generateToken.js";
+
+export const signup = async (req, res) => {
+    try {
+        const {fullName, username, password, confirmPassword, gender} = req.body;
+
+        if (password !== confirmPassword) {
+            return res.status(400).json({error:"Passwords don't match"});
+        }
+
+        const user = await User.findOne({username});
+
+        if (user) {
+            return res.status(400).json({error:"Username already exists"});
+        }
+
+        // HASH PASSWORD HERE
+        const salt = await bcrypt.genSalt(10);
+        const hashedPassword = await bcrypt.hash(password, salt);
+
+        // https://avatar-placeholder.iran.liara.run/
+
+        const boyProfilePic = `https://avatar.iran.liara.run/public/boy?username=${username}`;
+        const girlProfilePic = `https://avatar.iran.liara.run/public/girl?username=${username}`;
+
+        const newUser = new User({
+            fullName,
+            username,
+            password: hashedPassword,
+            gender,
+            profilePic: gender === "male" ? boyProfilePic : girlProfilePic,
+        });
+
+        if (newUser) {
+            // Generate JWT token here
+            generateTokenAndSetCookie(newUser._id, res);
+            await newUser.save();
+
+        res.status(201).json({
+            _id: newUser._id,
+            fullName: newUser.fullName,
+            username: newUser.username,
+            profilePic: newUser.profilePic,
+        });
+        } else {
+            res.status(400).json({error: "Invalid user data"});
+        }
+
+    } catch (error) {
+        console.log("Error in signup controller", error.message);
+        res.status(500).json({error: "Internal Server Error"});
+
+    }
+};
+
+export const login = async (req, res) => {
+    try {
+        const {username, password} = req.body;
+        const user = await User.findOne({username});
+        const isPasswordCorrect = await bcrypt.compare(password, user?.password || "");
+
+        if (!user || !isPasswordCorrect) {
+            return res.status(400).json({error: "Invalid username or password"});
+        }
+
+        generateTokenAndSetCookie(user._id, res);
+
+        res.status(200).json({
+            _id: user._id,
+            fullName: user.fullName,
+            username: user.username,
+            profilePic: user.profilePic,
+        });
+
+    } catch (error) {
+        console.log("Error in login controller", error.message);
+        res.status(500).json({error: "Internal Server Error"});
+    }
+};
+
+export const logout = (req, res) => {
+    try {
+        res.cookie("jwt", "", {maxAge: 0});
+        res.status(200).json({message: "Logged out succesfully"});
+    } catch (error) {
+        console.log("Error in logout controller", error.message);
+        res.status(500).json({error: "Internal Server Error"});
+    }
+};

backend/db/connectToMongoDB.js

@@ -0,0 +1,12 @@
+import mongoose from 'mongoose';
+
+const connectToMongoDB = async () => {
+    try {
+        await mongoose.connect(process.env.MONGO_DB_URI);
+        console.log("Connected to MongoDB");
+    } catch (error) {
+        console.log("Error connecting to MongoDB", error.message);
+    }
+};
+
+export default connectToMongoDB;

backend/routes/auth.routes.js

@@ -0,0 +1,13 @@
+import express from "express";
+import { login, logout, signup } from "../controllers/auth.controller.js";
+
+
+const router = express.Router();
+
+router.post("/signup", signup);
+
+router.post("/login", login);
+
+router.post("/logout", logout);
+
+export default router;

backend/server.js

@@ -1,14 +1,24 @@
 import express from "express";
 import dotenv from "dotenv";
 
+import authRoutes from "./routes/auth.routes.js";
+import connectToMongoDB from "./db/connectToMongoDB.js";
+
 const app = express();
+const PORT = process.env.PORT || 5000;
 
 dotenv.config();
-const PORT = process.env.PORT || 5000;
 
-app.get("/", (req, res) => {
-    // root route http://localhost:5000/
-    res.send("Hello World!!");
-});
+app.use(express.json()); // to parse the incoming requests with JSON payloads (from req.body)
+
+app.use("/api/auth", authRoutes);
+
+// app.get("/", (req, res) => {
+//     // root route http://localhost:5000/
+//     res.send("Hello World!!");
+// });
 
-app.listen(PORT, () => console.log(`Server Running on port ${PORT}`));
+app.listen(PORT, () => {
+    connectToMongoDB();
+    console.log(`Server Running on port ${PORT}`)
+});