Create an express HTTP server in Node.js which will handle the logic of a todo list app.

[shash369]

You need to create an express HTTP server in Node.js which will handle the logic of a todo list app.

• Don't use any database, just store all the data in an array to store the todo list data (in-memory)

Each todo has a title and a description. The title is a string and the description is a string.
Each todo should also get an unique autogenerated id every time it is created
The expected API endpoints are defined below,

1.GET /todos - Retrieve all todo items
  Description: Returns a list of all todo items.
  Response: 200 OK with an array of todo items in JSON format.
  Example: GET http://localhost:3000/todos
  
2.GET /todos/:id - Retrieve a specific todo item by ID
  Description: Returns a specific todo item identified by its ID.
  Response: 200 OK with the todo item in JSON format if found, or 404 Not Found if not found.
  Example: GET http://localhost:3000/todos/123
  
3. POST /todos - Create a new todo item
  Description: Creates a new todo item.
  Request Body: JSON object representing the todo item.
  Response: 201 Created with the ID of the created todo item in JSON format. eg: {id: 1}
  Example: POST http://localhost:3000/todos
Request Body: { "title": "Buy groceries", "completed": false, description: "I should buy groceries" }
  
4. PUT /todos/:id - Update an existing todo item by ID
  Description: Updates an existing todo item identified by its ID.
  Request Body: JSON object representing the updated todo item.
  Response: 200 OK if the todo item was found and updated, or 404 Not Found if not found.
  Example: PUT http://localhost:3000/todos/123
  Request Body: { "title": "Buy groceries", "completed": true }
  
5. DELETE /todos/:id - Delete a todo item by ID
  Description: Deletes a todo item identified by its ID.
  Response: 200 OK if the todo item was found and deleted, or 404 Not Found if not found.
  Example: DELETE http://localhost:3000/todos/123

  - For any other route not defined in the server return 404