backendchanged

backend/.env

@@ -0,0 +1 @@
+JWT_SECRET= "random#secret"

backend/config/db.js

@@ -0,0 +1,9 @@
+import mongoose from "mongoose";
+
+export const connectDb = async () => {
+    await mongoose
+      .connect(
+        "mongodb+srv://blazeopgamingyt:yXzV250vyGDfSrKw@cluster0.6ppwv.mongodb.net/chat-app"
+      )
+      .then(() => console.log("db CONNECTED"));
+}

backend/controllers/userController.js

@@ -0,0 +1,79 @@
+import userModel from "../models/userModel.js";
+import jwt from "jsonwebtoken";
+import bcrypt from "bcrypt";
+import validator from "validator";
+
+
+
+const createToken = (id) => {
+  return jwt.sign({ id }, process.env.JWT_SECRET)
+}
+
+
+// login user
+const loginUser = async (req, res) => {
+const {email,password} = req.body;
+try {
+    const user = await userModel.findOne({email});
+if(!user){
+return res.json({success:false,message:"user doesn't exist"});
+}
+
+const isMatch = await bcrypt.compare(password,user.password);
+if(!isMatch){
+return res.json({success:false,message:"Invalid password"});
+}
+const token = createToken(user._id);
+res.json({success:true,token});
+} catch (error) {
+    console.log(error);
+    res.json({success:false,message:"Login failed",error:error.message});
+}}
+
+// register user
+const registerUser = async (req, res) => {
+  const { email, password } = req.body;
+  try {
+    const exists = await userModel.findOne({ email });
+    if (exists) {
+      return res.json({ success: false, message: "User already exists" });
+    }
+
+    if (!validator.isEmail(email)) {
+      return res.json({
+        success: false,
+        message: "Please enter a valid email",
+      });
+    }
+
+    if (password.length < 8) {
+      return res.json({
+        success: false,
+        message: "Please enter a strong password",
+      });
+    }
+
+    const salt = await bcrypt.genSalt(10);
+    const hashedPassword = await bcrypt.hash(password, salt);
+
+    const newUser = new userModel({
+      email: email,
+      password: hashedPassword,
+    });
+
+    const user = await newUser.save();
+    const token = createToken(user._id);
+    return res.json({ success: true, token });
+  } catch (error) {
+    console.error("Error during user registration:", error.message);
+    res.json({
+      success: false,
+      message: "Registration failed",
+      error: error.message,
+    });
+  }
+
+};
+
+
+export { loginUser, registerUser };

backend/models/userModel.js

@@ -0,0 +1,12 @@
+import mongoose from "mongoose";
+
+const userSchema = new mongoose.Schema(
+  {
+    email: { type: String, required: true, unique: true },
+    password: { type: String, required: true },
+  },
+);
+
+const userModel = mongoose.models.user || mongoose.model("user", userSchema);
+
+export default userModel;