changes to index.js

final_project/index.js

@@ -11,9 +11,22 @@ app.use(express.json());
 app.use("/customer",session({secret:"fingerprint_customer",resave: true, saveUninitialized: true}))
 
 app.use("/customer/auth/*", function auth(req,res,next){
-//Write the authenication mechanism here
+ if(req.session.authorization) {
+       token = req.session.authorization['accessToken'];
+       jwt.verify(token, "access",(err,user)=>{
+           if(!err){
+               req.user = user;
+               next();
+           }
+           else{
+               return res.status(403).json({message: "User not authenticated"})
+           }
+        });
+    } else {
+        return res.status(403).json({message: "User not logged in"})
+    }
 });
- 
+
 const PORT =5000;
 
 app.use("/customer", customer_routes);

final_project/router/auth_users.js

@@ -5,24 +5,83 @@ const regd_users = express.Router();
 
 let users = [];
 
+//valid username
 const isValid = (username)=>{ //returns boolean
-//write code to check is the username is valid
+let filtered_users = users.filter((user)=> user.username === user);
+    if(filtered_users){
+        return true;
+    }
+    return false;
 }
 
+//authenticate username and password
 const authenticatedUser = (username,password)=>{ //returns boolean
-//write code to check if username and password match the one we have in records.
+if(isValid(username)){
+        let filtered_users = users.filter((user)=> (user.username===username)&&(user.password===password));
+        if(filtered_users){
+            return true;
+        }
+        return false;       
+    }
+    return false;
 }
 
+//register new user
+regd_users.post("/register", (req,res) => {
+    //Write your code here
+    const username = req.body.username;
+    const password = req.body.password;
+    if(username&&password){
+        const present = users.filter((user)=> user.username === username)
+        if(present.length===0){
+            users.push({"username":req.body.username,"password":req.body.password});
+            return res.status(201).json({message:"New user created successfully"})
+        }
+        else{
+          return res.status(400).json({message:"User already exists"})
+        }
+    }
+    else if(!username && !password){
+      return res.status(400).json({message:"Check username and Password!"})
+    }
+    else if(!username || !password){
+      return res.status(400).json({message:"Check username and password"})
+    }   
+  });
+
 //only registered users can login
 regd_users.post("/login", (req,res) => {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+  let user = req.body.username;
+    let pass = req.body.password;
+    if(!authenticatedUser(user,pass)){
+        return res.status(403).json({message:"User not authenticated"})
+    }
+    let accessToken = jwt.sign({
+        data: user
+    },'access',{expiresIn:60*60})
+    req.session.authorization = {
+        accessToken
+    }
+    res.send("User logged in Successfully") 
 });
 
+
 // Add a book review
 regd_users.put("/auth/review/:isbn", (req, res) => {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+ let userd = req.session.username;
+  let ISBN = req.params.isbn;
+  let details = req.query.review;
+  let rev = {user:userd,review:details}
+  books[ISBN].reviews = rev;
+  return res.status(201).json({message:"New review added successfully!"})  
+});
+
+//delete a review
+regd_users.delete("/auth/review/:isbn", (req, res) => {
+    let ISBN = req.params.isbn;
+    books[ISBN].reviews = {}
+    return res.status(200).json({messsage:"Review has been deleted!"})
+  //return res.status(300).json({message: "Yet to be implemented"});
 });
 
 module.exports.authenticated = regd_users;

final_project/router/general.js

@@ -6,38 +6,108 @@ const public_users = express.Router();
 
 
 public_users.post("/register", (req,res) => {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+  const username = req.body.username;
+    const password = req.body.password;
+    if(username&&password){
+        const present = users.filter((user)=> user.username === username)
+        if(present.length===0){
+            users.push({"username":req.body.username,"password":req.body.password});
+            return res.status(201).json({message:"New user created"})
+        }
+        else{
+          return res.status(400).json({message:"User already exists"})
+        }
+    }
+    else if(!username && !password){
+      return res.status(400).json({message:"Bad request"})
+    }
+    else if(!username || !password){
+      return res.status(400).json({message:"Check username and password"})
+    }  
+
+
+
+  //return res.status(300).json({message: "Yet to be implemented"});
 });
 
 // Get the book list available in the shop
 public_users.get('/',function (req, res) {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+    let myPromise1= new Promise((resolve,reject) =>{
+        setTimeout(() =>{
+            resolve(books)
+        },0 )})
+    myPromise1.then((successMessage)=>{
+        res.send(JSON.stringify(books,null,4))
+    })    
+  //res.send(JSON.stringify(books,null,4));
+  //return res.status(300).json({message: "Yet to be implemented"});
 });
 
 // Get book details based on ISBN
 public_users.get('/isbn/:isbn',function (req, res) {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+  let myPromise1= new Promise((resolve,reject) =>{
+        setTimeout(() =>{
+            resolve(books)
+        },0 )})
+    myPromise1.then((successMessage)=>{
+        const isbn = req.params.isbn
+        res.send(books[isbn])
+    })     
+
+
+  //const isbn = req.params.isbn;
+    //res.send(books[isbn])
+  //return res.status(300).json({message: "ISBN"});
  });
 
 // Get book details based on author
 public_users.get('/author/:author',function (req, res) {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+  let myPromise1= new Promise((resolve,reject) =>{
+        setTimeout(() =>{
+            resolve(books)
+        },0 )})
+    myPromise1.then((successMessage)=>{
+        const authors = req.params.author
+        let filtered_author = Object.values(books).filter(books => books.author === authors);
+        res.send(filtered_author);
+    })     
+
+
+
+  //const authors = req.params.author;
+  //let filtered_author = Object.values(books).filter(books => books.author === authors);
+  //res.send(filtered_author);
+  //return res.status(300).json({message: "Author"});
 });
 
 // Get all books based on title
 public_users.get('/title/:title',function (req, res) {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+  public_users.get('/title/:title',function (req, res) {
+    let myPromise1= new Promise((resolve,reject) =>{
+        setTimeout(() =>{
+            resolve(books)
+        },0 )})
+    myPromise1.then((successMessage)=>{
+        const titles = req.params.title;
+        let filtered_title = Object.values(books).filter(books => books.title === titles);
+        res.send(filtered_title);
+    })     
+
+
+
+  //const titles = req.params.title;
+  //let filtered_title = Object.values(books).filter(books => books.title === titles);
+  //res.send(filtered_title);
+  //return res.status(300).json({message: "Yet to be implemented"});
 });
 
 //  Get book review
 public_users.get('/review/:isbn',function (req, res) {
-  //Write your code here
-  return res.status(300).json({message: "Yet to be implemented"});
+  const isbn = req.params.isbn;  
+
+  res.send(books[isbn].reviews)
+
+  //return res.status(300).json({message: "Review via isbn"});
 });
 
 module.exports.general = public_users;