week-2-assignment submission

02-nodejs/authenticationServer.js

@@ -34,4 +34,73 @@ 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
 
+var users = [];
+
+app.use(express.json());
+app.post("/signup", (req, res) => {
+  var user = req.body;
+  let userAlreadyExists = false;
+  for (var i = 0; i<users.length; i++) {
+    if (users[i].email === user.email) {
+        userAlreadyExists = true;
+        break;
+    }
+  }
+  if (userAlreadyExists) {
+    res.sendStatus(400);
+  } else {
+    users.push(user);
+    res.status(201).send("Signup successful");
+  }
+});
+
+app.post("/login", (req, res) => {
+  var user = req.body;
+  let userFound = null;
+  for (var i = 0; i<users.length; i++) {
+    if (users[i].email === user.email && users[i].password === user.password) {
+        userFound = users[i];
+        break;
+    }
+  }
+
+  if (userFound) {
+    res.json({
+        firstName: userFound.firstName,
+        lastName: userFound.lastName,
+        email: userFound.email
+    });
+  } else {
+    res.sendStatus(401);
+  }
+});
+
+app.get("/data", (req, res) => {
+  var email = req.headers.email;
+  var password = req.headers.password;
+  let userFound = false;
+  for (var i = 0; i<users.length; i++) {
+    if (users[i].email === email && users[i].password === password) {
+        userFound = true;
+        break;
+    }
+  }
+
+  if (userFound) {
+    let usersToReturn = [];
+    for (let i = 0; i<users.length; i++) {
+        usersToReturn.push({
+            firstName: users[i].firstName,
+            lastName: users[i].lastName,
+            email: users[i].email
+        });
+    }
+    res.json({
+        users
+    });
+  } else {
+    res.sendStatus(401);
+  }
+});
+
 module.exports = app;

02-nodejs/fileServer.js

@@ -21,5 +21,28 @@ const fs = require('fs');
 const path = require('path');
 const app = express();
 
+app.get('/files', (req, res) => {
+  fs.readdir(path.join(__dirname, './files/'), (err, files) => {
+    if(err) {
+      return res.status(500).json({error: "Failed to retrieve files"});
+    }
+    res.json(files);
+  });
+});
+
+app.get('/file/:filename', (req, res) => {
+  const filepath = path.join(__dirname, './files/', req.params.filename);
+
+  fs.readFile(filepath, 'utf8', (err, data) => {
+    if(err) {
+      return res.status(404).send('File not found');
+    }
+    res.send(data);
+  });
+});
+
+app.get('*', (req, res) => {
+  res.status(404).send('Route not found');
+});
 
 module.exports = app;

02-nodejs/todoServer.js

@@ -46,4 +46,63 @@ const app = express();
 
 app.use(bodyParser.json());
 
+let todos = [];
+
+function findIndex(arr, id) {
+  for(var i=0; i<arr.length; i++) {
+    if(arr[i].id === id) return i;
+  }
+  return -1;
+}
+app.get('/todos', (req, res) => {
+  res.json(todos);
+});
+
+app.get('/todos/:id', (req, res) => {
+  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() * 10000),
+    title: req.body.title,
+    description: req.body.description
+  }
+  todos.push(newTodo);
+  res.status(201).json(newTodo);
+});
+
+app.put('/todos/:id', (req, res) => {
+  const todoIndex = findIndex(todos, parseInt(req.params.id));
+  if(todoIndex == -1) {
+    res.status(404).send();
+  }
+  else {
+    todos[todoIndex].title = req.body.title,
+    todos[todoIndex].description = req.body.description,
+    res.json(todos[todoIndex]);
+  }
+});
+
+app.delete('/todos/:id', (req, res) => {
+  const todoIndex = findIndex(todos, parseInt(req.params.id));
+  if(todoIndex == -1) {
+    res.status(404).send();
+  }
+  else {
+    todos.splice(todoIndex, 1);
+    res.status(200).send();
+  }
+});
+
+app.use((req, res, next) => {
+  res.status(404).send();
+});
+
 module.exports = app;