All tasks completed

02-nodejs/authenticationServer.js

@@ -30,8 +30,88 @@
  */
 
 const express = require("express")
+const bodyParser = require("body-parser")
+const { v4: uuidv4 } = require("uuid");
+const jwt = require("jsonwebtoken");
 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 arrUsers = [];
 
+app.use(bodyParser.json())
+
+app.post("/signup", (req,res) => {
+  userExists = false;
+  var jsonObject = req.body;
+  if(arrUsers.length > 0) {
+    arrUsers.forEach((val) => {
+      if(jsonObject.email === val.email) {
+        userExists = true;
+      }
+    })
+  }
+
+  if (!userExists) {
+    jsonObject.uuid = uuidv4();
+    arrUsers.push(jsonObject);
+    res.status(201).send("Signup successful");
+  } else {
+    res.status(400).send("Username already exists");
+  }
+})
+
+app.post("/login", (req,res) => {
+  userFound = false;
+  requestedUser = {};
+  var authFields = req.body;
+  if(arrUsers.length > 0) {
+    arrUsers.forEach((val) => {
+      if(val.email === authFields.email && val.password === authFields.password) {
+        userFound = true;
+        requestedUser = val;
+      }
+    })
+  }
+
+  if(userFound) {
+    var token = jwt.sign({
+      username: authFields.username,
+      password: authFields.password
+    }, "privatekey");
+    res.json({
+      "email": requestedUser.email,
+      "firstName": requestedUser.firstName,
+      "lastName": requestedUser.lastName,
+      "token": token
+      });
+  } else {
+    res.status(401).send("Unauthorized user credentials");
+  }
+
+})
+
+app.get("/data", (req,res) => {
+  var emailD = req.headers.email;
+  var passwordD = req.headers.password;
+  var returnObj = [];
+  if (emailD != null && emailD.trim() != "" && passwordD != null && passwordD.trim() != "") {
+    if(arrUsers.length > 0) {
+      arrUsers.forEach((val) => {
+        returnObj.push({
+          "firstName": val.firstName,
+          "lastName": val.lastName,
+          "id": val.uuid
+        });
+      });
+    }
+
+    res.status(200).send({
+      "users": returnObj
+    });
+  } else {
+    res.status(401).send("Unauthorized");
+  }
+})
+
+// app.listen(PORT);
 module.exports = app;

02-nodejs/fileServer.js

@@ -20,6 +20,34 @@ const express = require('express');
 const fs = require('fs');
 const path = require('path');
 const app = express();
+const PORT = 3000;
 
+app.get("/files", (req,res) => {
+  fs.readdir(path.join(__dirname, '/files/'), (err, files) => {
+    if (err) {
+      res.status(500).send("Cant retrieve files ");
+    } else {
+      res.json(files);
+    }
+  });
+})
 
+app.get("/file/:fileName", (req,res) => {
+  var filepath = path.join(__dirname, './files/', req.params.fileName);
+
+  fs.readFile(filepath, "utf8", (err,data) => {
+    if (err) {
+      res.status(404).send("File not found");
+    } else {
+      console.log(data);
+      res.send(data);
+    }
+  });
+})
+
+app.all("*", (req,res) => {
+  res.status(404).send("Route not found");
+})
+
+// app.listen(PORT);
 module.exports = app;

02-nodejs/package.json

@@ -21,7 +21,9 @@
     "testTimeout": 10000
   },
   "dependencies": {
+    "body-parser": "^1.20.2",
     "express": "^4.18.2",
-    "uuid": "^9.0.0"
+    "jsonwebtoken": "^9.0.2",
+    "uuid": "^9.0.1"
   }
 }

02-nodejs/todoServer.js → 02-nodejs/solutions/todoServer.js

@@ -41,9 +41,116 @@
  */
 const express = require('express');
 const bodyParser = require('body-parser');
-
+const fs = require('fs');
 const app = express();
+var allTodos = [];
+const PORT = 3000;
 
 app.use(bodyParser.json());
 
+app.get("/todos", (req,res) => {
+  fs.readFile("todos.json", "utf-8", (err, data) => {
+    if (err) throw err;
+    res.json(JSON.parse(data));
+  })
+})
+
+app.get("/todos/:id", (req,res) => {
+  var queryId = req.params.id;
+
+  fs.readFile("todos.json", "utf-8", (err,data) => {
+    if (err) throw err;
+    var returnobj = {};
+    const todos = JSON.parse(data);
+    todos.forEach((val) => {
+      if(val.id == queryId) {
+        returnobj = val;
+      }
+    })
+
+    if (returnobj.id != null) {
+      res.json(returnobj);
+    } else {
+      res.status(404).send("Not Found");
+    }
+  })
+})
+
+app.post("/todos", (req,res) => {
+  const newtodo = {
+    id: Math.floor(Math.random() * 10000),
+    title: req.body.title,
+    description: req.body.description
+  }
+
+  fs.readFile("todos.json", "utf-8", (err,data) => {
+    if (err) throw err;
+    const todos = JSON.parse(data);
+    todos.push(newtodo);
+
+    fs.writeFile("todos.json", JSON.stringify(todos), (err) => {
+      if (err) throw err;
+      res.status(201).send({"id": newtodo.id});
+    })
+  })
+})
+
+app.put("/todos/:id", (req,res) => {
+  var id = req.params.id;
+  var updatedItem = req.body;
+  updatedItem.id = id;
+  var index = null;
+
+  fs.readFile("todos.json", "utf-8", (err, data) => {
+    if (err) throw err;
+    const todos = JSON.parse(data);
+
+    if(todos.length > 0) {
+      index = todos.findIndex((val) => val.id == id);
+
+      if (index > -1) {
+        todos[index] = updatedItem;
+
+        fs.writeFile("todos.json", JSON.stringify(todos), (err) => {
+          if (err) throw err;
+          res.status(200).send("found and updated");
+        })
+      }
+
+      if (index == -1) {
+        res.status(404).send("Not Found");
+      }
+    }
+  })
+})
+
+app.delete("/todos/:id", (req,res) => {
+  var id = req.params.id;
+  var index = null;
+
+  fs.readFile("todos.json", "utf-8", (err, data) => {
+    if (err) throw err;
+
+    const todos = JSON.parse(data);
+
+    if(todos.length > 0) {
+      index = todos.findIndex((val) => val.id == id);
+
+      if (index > -1) {
+        todos.splice(index, 1);
+
+        fs.writeFile("todos.json", JSON.stringify(todos), (err) => {
+          if (err) throw err;
+          res.status(200).send("found and deleted");
+        })
+      }
+
+      if (index == -1) {
+        res.status(404).send("Not Found");
+      }
+    }
+  })
+})
+
+app.listen(PORT);
 module.exports = app;

02-nodejs/solutions/todos.json

@@ -0,0 +1 @@
+[{"id":6214,"title":"Buy groceries","description":"I should buy groceries"}]