🏗️ Project: Simple Task Manager API

🗒️ Description

A beginner-friendly backend project built with Node.js and Express, using an in-memory database (array of objects).
The goal is to practice RESTful API design, CRUD operations, error handling, and basic problem-solving.

📌 Requirements

Core Features

1. Add a task

   • Endpoint: POST /tasks
   • Input (JSON):

     { "title": "Buy milk" }

   • Output (JSON):

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

2. Get all tasks

   • Endpoint: GET /tasks
   • Output: Array of tasks.

3. Get one task by ID

   • Endpoint: GET /tasks/:id
   • Behavior: Return a single task if found.
   • Error: Return 404 if the task does not exist.

4. Update a task

   • Endpoint: PUT /tasks/:id
   • Input (JSON):

     { "title": "Buy almond milk", "completed": true }

   • Behavior: Update only provided fields.
   • Error: Return 404 if the task does not exist.

5. Delete a task

   • Endpoint: DELETE /tasks/:id
   • Behavior: Remove the task.
   • Error: Return 404 if the task does not exist.

🔏 Rules

• Store tasks in an array (no external DB).
• Each task should have:

  {
    "id": number,
    "title": string,
    "completed": boolean
  }
  

🚀 Extra Challenges

1. Search/filter tasks

   • Example: GET /tasks?completed=true → returns only completed tasks.

2. Validation

   • Don’t allow empty titles in tasks.
   • Return a 400 Bad Request error if input is invalid.

3. Reset route

   • Endpoint: DELETE /reset
   • Clears all tasks and resets ID counter.
   • Useful for testing and starting fresh.