whole week 3

02-nodejs/authenticationServer.js

@@ -33,5 +33,48 @@ const express = require("express")
 const PORT = 3000;
 const app = express();
 // write your logic here, DONT WRITE app.listen(3000) when you're running tests, the tests will automatically start the server
+const bodyParser = require('body-parser')
+
+app.use(bodyParser.json());
+
+let arr=[]
+app.get('/data', (req, res)=>{
+  const {username, password} = 
+})
+
+//1
+app.post('/signup', (req, res)=>{
+  // const  {username, password, firstname, lastname} = req.body;
+  const newUser={
+    username: req.body.username,
+    password: req.body.password,
+    fistname: req.body.firstname,
+    lastname: req.body.lastname
+  }
+  const userExist=find(user=>user===newUser);
+  if(userExist){
+    return res.status(400).json({error: "Bad request"})
+  }else{
+    const Id=Math.floor(Math.random()*1000000);
+    newUser.push({id:Id});
+    return res.status(201).json({"successfull"})
+  }
+});
+
+//2
+app.post('/login', (req, res)=>{
+  const {username, password} = req.body;
+  const user = arr.find(user=>user.username===username);
+  if(!user || user.password!==password){
+    return res.status(401).json({error: 'Unauthorized'});
+  }
+  res.status(200).json({
+    id: user.id,
+    firstName: user.firstName,
+    lastName: user.lastName
+  })
+});
+
+app.use()
 
 module.exports = app;

02-nodejs/fileServer.js

@@ -21,5 +21,32 @@ const fs = require('fs');
 const path = require('path');
 const app = express();
 
+app.get('/files', (req, res)=>{
+  const fileDirectory = path.join(__dirname,'./files/');
+  fs.readdir(fileDirectory, (err, data)=>{
+    if(err){
+      return res.status(500).json({error: "Failed to retrieve files"});
+    }
+    res.status(200).json(data);
+  });
+});
+
+app.get('/file/:filename', (req, res)=>{
+  const fileName = req.params.filename;
+  const fileDirectory = path.join(__dirname, './files/', fileName);
+  fs.readFile(fileDirectory, "utf8", (err, data)=>{
+    if(err){
+        return res.status(404).send( 'File not found');
+    }
+      res.send(data);
+  });
+});
+
+app.all('*',(req, res)=>{
+  res.status(404).send("Route not found");
+});
 
 module.exports = app;
+
+
+

02-nodejs/solutions/todoServer.solution.file.js

@@ -103,4 +103,6 @@ app.use((req, res, next) => {
   res.status(404).send();
 });
 
+// app.listen(3000)
+
 module.exports = app;

02-nodejs/solutions/todoServer.solution.simple.js

@@ -71,4 +71,6 @@ app.use((req, res, next) => {
   res.status(404).send();
 });
 
-module.exports = app;
+// module.exports = app;
+
+app.listen(3000);

02-nodejs/tempCodeRunnerFile.js

@@ -0,0 +1 @@
+npm run test-todoServer

02-nodejs/todo.json

@@ -0,0 +1 @@
+[{"id":916331,"title":"gym","description":"8to 12PM"},{"id":597864,"title":"gym","description":"222 to 8"},{"id":732970,"title":"gym","description":"8to 12PM"},{"id":897750},{"id":444071},{"id":709983,"title":"gym","description":"4 to 8"},{"id":78693,"title":"gym","description":"4 to 8"},{"id":28951,"title":"gym","description":"4 to 8"},{"id":481301},{"id":721574}]

02-nodejs/todoServer.js

@@ -39,11 +39,116 @@
 
   Testing the server - run `npm run test-todoServer` command in terminal
  */
+  // npx jest todoServer.js
+
 const express = require('express');
 const bodyParser = require('body-parser');
+const fs = require('fs');
 
 const app = express();
 
 app.use(bodyParser.json());
 
-module.exports = app;
+
+function findIndex(arr, id){
+  for(let i=0; i<arr.length;i++){
+    if(arr[i].id===id)
+    return i;
+  }
+  return -1;
+}
+
+function removeAtIndex(arr, index){
+  const newArray = [];
+  for(let i=0;i<arr.length;i++){
+    if(i!=index)newArray.push(arr[i]);
+  }
+  return newArray;
+}
+
+app.get("/todos", (req, res)=>{
+  fs.readFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", "utf8", (err, data)=>{
+    if(err) throw err;
+    res.json(JSON.parse(data));
+  });
+});
+
+app.get("/todos/:id", (req, res)=>{
+  fs.readFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", "utf8", (err, data)=>{
+    if(err) throw err;
+    const todos = JSON.parse(data);
+    const todoIndex = findIndex(todos, parseInt(req.params.id));
+    if(todoIndex===-1){
+      res.status(404).send();
+    }else {
+      res.json(todos[todoIndex]);
+    }
+  });
+});
+
+app.post("/todos", (req, res)=>{
+  const newTodo={
+    id: Math.floor(Math.random()*1000000),
+    title: req.body.title,
+    description: req.body.description
+  };
+  fs.readFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", "utf8", (err, data)=>{
+    if(err) throw err;
+    const todos = JSON.parse(data);
+    todos.push(newTodo);
+    fs.writeFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", JSON.stringify(todos), (err)=>{
+      if(err)throw err;
+      res.status(201).json(newTodo);
+    });
+  });
+});
+
+app.put("/todos/:id", (req, res)=>{
+  fs.readFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", "utf8", (err, data)=>{
+    if(err) throw err;
+    else{
+      const todos = JSON.parse(data);
+      const todoIndex = findIndex(todos, parseInt(req.params.id));
+      if(todoIndex==-1)
+      res.status(404).send("Not found");
+    else{
+      const updatedTodo={
+        id: todos[todoIndex].id,
+        title: req.body.title,
+        description: req.body.description
+      };
+        todos[todoIndex]=updatedTodo;
+        fs.writeFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", JSON.stringify(todos),(err)=>{
+          if(err) throw err;
+          res.status(200).json(updatedTodo);
+        });
+      }
+    }
+  });
+});
+
+app.delete("/todos/:id", (req, res)=>{
+  fs.readFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", "utf8", (err, data)=>{
+    if(err) throw err;
+    let todos = JSON.parse(data);
+    const todoIndex = findIndex(todos, parseInt(req.params.id));
+    if(todoIndex==-1){
+      res.status(404).send();
+    }else{
+      todos = removeAtIndex(todos, todoIndex);
+      fs.writeFile("D:\\Programming\\Harkirat\\Week-2-Assignments\\02-nodejs\\todo.json", JSON.stringify(todos), (err)=>{
+        if(err) throw err;
+        res.status(200).json(todos);
+      })
+    }
+  })
+})
+
+
+app.use((req, res, next)=>{
+  res.status(404).send();
+} )
+
+// module.exports = app;
+
+app.listen(3000);

02-nodejs/week3_assignment.html

@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <div id="mainArea"></div>
+    <script>
+        function createDomElement(data){
+    var parentElement = document.getElementById("mainArea");
+    parentElement.innerHTML = "";
+    for(var i=0;i<data.length;i++){
+        var childElement = document.createElement("div");    
+        var grandChildElement1 = document.createElement("span");
+        grandChildElement1.innerHTML=data[i].title;
+        var grandChildElement2=document.createElement("span");
+        grandChildElement2.innerHTML=data[i].description;
+        var grandChildElement3=document.createElement("button");
+        grandChildElement3.innerHTML="Delete";
+        grandChildElement3.setAttribute("onclick","deleteTodo("+data[i].id+")");
+
+        childElement.appendChild(grandChildElement1);
+        childElement.appendChild(grandChildElement2);
+        childElement.appendChild(grandChildElement3);
+        parentElement.appendChild(childElement);
+
+    }        
+}
+window.setInterval(()=>{
+    let todos=[];
+    for(let i=0;i<Math.floor(Math.random()*100);i++){
+        todos.push({
+            title:"Go to gym",
+            description:"Go to gym at 5",
+            id:i+1
+        })
+    }
+    createDomElement(todos);
+},2000)
+    </script>
+</body>
+</html>