Backend

backend/.env

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+PORT = 8000
+URI = "mongodb://localhost:27017/BookStoreApp"

backend/controller/book.controller.js

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+import Book from "../model/book.model.js";
+
+export const getBook= async (req, res)=>{
+  try {
+    const book= await Book.find();
+res.status(200).json(book);
+
+  } catch (error) {
+    console.log("Error", error);
+    res.status(500).send(error);
+  }
+}

backend/controller/user.controller.js

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+import User from "../model/user.model.js";
+import bcryptjs from "bcryptjs";
+
+export const signup =async(req, res)=>{
+  try {
+    const {fullname, email, password} = req.body;
+    const user = await User.findOne({email});
+    if(user){
+      return res.status(400).json({message: "User already exists"})
+    }
+    const hashPassword = await bcryptjs.hash(password, 10)
+    const createUser = new User({
+      fullname: fullname,
+      email: email,
+      password: hashPassword,
+    })
+
+    await createUser.save().then((user) =>{
+      res.status(201).json({message: "User created sucessfullly", user:{_id: createUser._id, fullname: createUser.fullname}})
+    })
+
+  } catch (error) {
+    console.log("Error: " + error.message);
+
+  }
+}
+// Best way to handle async use Promise instead of await
+
+
+export const login = async (req, res)=>{
+try {
+  const {email, password ,fullname} = req.body;
+
+const user = await User.findOne({email});
+console.log("hey " + fullname);
+
+
+const isMatch =  await bcryptjs.compare(password, user.password)
+if(!isMatch || !user){
+  return res.status(400).json({message: error.message})
+}
+else{
+res.status(200).json({message: "Login Sucessfully", user: {
+  _id: user._id,
+  fullname : user.fullname,
+  email: user.email,
+
+}})
+}
+} catch (error) {
+  console.log("Error: "+ error.message);
+  res.status(500).json({message:" Invalid username or password"})
+}
+} 

backend/index.js

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+import express from "express"
+import  dotenv from "dotenv"
+import mongoose from "mongoose"
+import cors from "cors";
+
+import bookRoute from "./routes/book.route.js";
+import userRoute from "./routes/user.route.js"
+
+const app = express();
+app.use(cors());
+app.use(express.json());
+
+
+dotenv.config();
+
+
+const PORT = process.env.PORT || 8001;
+const URI = process.env.URI;
+app.get("/", (req, res)=>{
+  res.send("Hello  Banger!")
+});
+
+// Connect to MongoDb
+
+
+try {
+
+mongoose
+.connect(URI)
+.then(()=>{
+  console.log(`Connected to Database`);
+  app.listen(PORT, console.log(`Server Connected at ${PORT}`))
+})
+} catch (error) {
+  console.log(error);
+
+}
+
+app.use("/book", bookRoute)
+app.use("/user", userRoute )
+
+
+

backend/model/book.model.js

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+import mongoose from "mongoose";
+const bookSchema = mongoose.Schema({
+  name: String,
+  price: Number,
+  category: String,
+  image: String,
+  title: String,
+})
+
+//Book is a collection when data is come
+// schema me jis feild me data aayega wo book Collection me store ho jayea 
+
+const Book =  mongoose.model("Book", bookSchema);
+
+export default Book;

backend/model/user.model.js

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+import mongoose from "mongoose";
+
+const useSchema = mongoose.Schema({
+  fullname:{
+    type:String,
+    require: true
+  },
+  email:{
+    type:String,
+    require: true,
+    unique: true
+  },
+  password:{
+    type:String,
+    require: true
+  }
+
+})
+
+const User = mongoose.model("User", useSchema);
+
+export default User;