REST API's

1. Simple CRUD API for a To-Do List:

   • Description: Build a basic CRUD (Create, Read, Update, Delete) API for a To-Do List application. Users should be able to add, view, update, and delete tasks.

2. User Authentication and Authorization API:

   • Description: Develop an API that handles user authentication and authorization. Include features like user registration, login, password reset, and role-based access control.

3. Blog Engine API:

   • Description: Create an API for a simple blog engine. Include features such as creating and updating blog posts, commenting, and user authentication for post creation.

4. E-commerce Product Management API:

   • Description: Build an API for managing products in an e-commerce system. Include features like adding products, updating product details, and retrieving product information.

5. Weather Forecast API:

   • Description: Develop an API that provides weather forecasts based on user-provided locations. Integrate with a third-party weather API for real-time data.

6. Chat Application API:

   • Description: Build a basic API for a chat application. Include features like sending and receiving messages, user authentication, and real-time updates using WebSocket.

7. Stock Portfolio Tracker API:

   • Description: Create an API for tracking a user's stock portfolio. Include features like adding stocks, updating stock quantities, and retrieving portfolio information.

8. Recipe Management API:

   • Description: Build an API for managing recipes. Include features such as adding recipes, updating ingredients, and searching for recipes based on ingredients.

9. Event Booking API:

   • Description: Develop an API for booking and managing events. Include features like creating events, booking tickets, and viewing event details.

10. Library Management API:

    • Description: Build an API for managing a library system. Include features like adding books, checking in/out books, and searching for books based on criteria.

11. Travel Itinerary API:

    • Description: Create an API for managing travel itineraries. Include features like adding destinations, updating travel details, and retrieving itinerary information.

12. Expense Tracker API:

    • Description: Build an API for tracking personal expenses. Include features like adding expenses, categorizing expenses, and generating expense reports.

And more on, focus on best practices such as proper error handling, input validation, and security considerations while implementing these projects.