Week-2 Assignment, With a slight modification in test case of FileServer

02-nodejs/authenticationServer.js

@@ -29,9 +29,79 @@
   Testing the server - run `npm run test-authenticationServer` command in terminal
  */
 
-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
-
-module.exports = app;
+  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
+
+  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

@@ -16,10 +16,50 @@
 
     Testing the server - run `npm run test-fileServer` command in terminal
  */
-const express = require('express');
-const fs = require('fs');
-const path = require('path');
-const app = express();
+    const express = require('express');
+    const fs = require('fs').promises; // Used promises version of fs 
+    const path = require('path');
+    const app = express();
+
+    app.use(express.json());
+
+    const listOfFiles = async (req, res) => {
+      try {
+        const files = await fs.readdir('./files');
+        res.status(200).json(files);
+      } 
+      catch (error) {
+        res.sendStatus(500);
+      }
+    };
+
+    const getFileContent = async (req, res) => {
+      const { filename } = req.params;
+      const filePath = `./files/${filename}`;
+
+      try {
+        const stats = await fs.stat(filePath);
+
+        if (!stats.isFile()) {
+          res.status(404).send("File not found");
+          return;
+        }
+
+        const fileContent = await fs.readFile(filePath, 'utf8');
+        res.status(200).send(fileContent);
+      } 
+      catch (error) {
 
-
-module.exports = app;
+        res.status(404).send("File not found");
+      }
+    };
+
+    app.get('/files', listOfFiles);
+    app.get('/file/:filename', getFileContent);
+
+    app.use((req, res) => {
+      res.status(404).send("Route not found");
+    });
+
+    module.exports = app;
+