Password Encryption with Bcrypt

IT18021080/Telemedicine-Chat-App/backend/controllers/userControllers.js

@@ -49,7 +49,7 @@ const authUser = asyncHandler(async (req, res) => {
     const user = await User.findOne({ email });
 
     //If user is already exist check it with DB data such as password
-    if (user) {
+    if (user && (await user.matchPassword(password))) {
         res.json({
             _id: user._id,
             name: user.name,
@@ -63,4 +63,4 @@ const authUser = asyncHandler(async (req, res) => {
     }
 });
 
-module.exports = { registerUser };
\ No newline at end of file
+module.exports = { registerUser, authUser };
\ No newline at end of file

IT18021080/Telemedicine-Chat-App/backend/models/userModel.js

 const mongoose = require("mongoose");
+const bcrypt = require("bcryptjs");
 
 const userSchema = mongoose.Schema({
     name: { type: String, required: true },
@@ -14,6 +15,22 @@ const userSchema = mongoose.Schema({
     {timestamps:true}
 );
 
+userSchema.methods.matchPassword = async function (enteredPassword) {
+    //Verify Password
+    return await bcrypt.compare(enteredPassword, this.password);
+    
+};
+
+//I add the .pre becouse before goint to database saving
+userSchema.pre("save", async function (next) {
+    if (!this.isModified) {
+        next();
+    }
+
+    const salt = await bcrypt.genSalt(10); // generate strongest new salt
+    this.password = await bcrypt.hash(this.password, salt); //add Hash and bcrypt
+});
+
 const User = mongoose.model("User", userSchema);
 
 module.exports = User;
\ No newline at end of file

IT18021080/Telemedicine-Chat-App/backend/routes/userRoutes.js

 const express = require("express");
-const { registerUser } = require("../controllers/userControllers");
+const { registerUser,authUser } = require("../controllers/userControllers");
+
+
 
 const router = express.Router();
 
 router.route("/").post(registerUser);
-router.post("/login", authUser);
+router.post("/login",authUser );
 
 module.exports = router;