CRUD API Instruction

Todo App CRUD API

Use 'Java and Spring' or 'NodeJS and NestJS' to build the following CRUD API

• NodeJS - NestJS Setup: https://docs.nestjs.com/first-steps
• Spring Setup: https://spring.io/quickstart
• Everything can just be stored in memory (If the CRUD API is shutdown, tasks will be lost, this is ok)

API Structure

The Todo App CRUD API is a set of endpoints that allow users to perform CRUD (Create, Read, Update, Delete) operations on todo items in the Todo App.

The API includes the following endpoints:

• GET /todos: Retrieves a list of all todo items.
• GET /todos/{id}: Retrieves a specific todo item by its ID.
• POST /todos: Creates a new todo item.
• PUT /todos/{id}: Updates an existing todo item.
• DELETE /todos/{id}: Deletes a todo item.

Each endpoint accepts and returns JSON data.

Sample CURL requests with responses for the Todo App CRUD API:

1. Retrieve a list of all todo items:

   curl -X GET /todos

   Response:

   [
     {
       "id": 1,
       "title": "Buy groceries",
       "completed": false
     },
     {
       "id": 2,
       "title": "Finish report",
       "completed": true
     },
     ...
   ]

2. Retrieve a specific todo item by its ID:

   curl -X GET /todos/{id}

   Response:

   {
     "id": 1,
     "title": "Buy groceries",
     "completed": false
   }

3. Create a new todo item:

   curl -X POST /todos \\
     -H "Content-Type: application/json" \\
     -d '{"title": "Walk the dog", "completed": false}'

   Response:

   {
     "id": 3,
     "title": "Walk the dog",
     "completed": false
   }

4. Update an existing todo item:

   curl -X PUT /todos/{id} \\
     -H "Content-Type: application/json" \\
     -d '{"title": "Buy groceries", "completed": true}'

   Response:

   {
     "id": 1,
     "title": "Buy groceries",
     "completed": true
   }

5. Delete a todo item:

   curl -X DELETE /todos/{id}

   Response:

   {
     "message": "Todo item deleted successfully"
   }

A Todo Item (DataModel)

The data model consists of the following fields:

• id (integer): Represents the unique identifier of a todo item.
• title (string): Represents the title or description of a todo item.
• completed (boolean): Represents the completion status of a todo item. It is true if the todo item has been completed, and false otherwise.

This data model is used to store information about a specific todo item in the Todo App. It includes an ID for identification, a title for describing the task, and a completion status to indicate whether the task has been completed or not.