FastAPI Tutorial – Structuring Your Applications

FastAPI is a modern web framework for building APIs with Python. In this tutorial, we will discuss how to structure your applications using FastAPI.

Creating a FastAPI Project

To create a new FastAPI project, you can use the following command:

pip install fastapi uvicorn

Once you have installed FastAPI, you can create a new Python file for your application. In this file, you can define your routes and endpoints using FastAPI decorators.

Structuring Your FastAPI Application

When structuring your FastAPI application, it is important to organize your code in a way that is easy to maintain and understand. Here are some tips for structuring your FastAPI application:

• Separate your code into modules: Divide your code into separate modules for different parts of your application, such as routes, models, and utilities.
• Use routers for grouping routes: Use FastAPI routers to group related routes together, making it easier to manage and organize your endpoints.
• Define dependencies: Use FastAPI dependencies to inject dependencies into your route handlers, making your code more modular and reusable.
• Use async and await: Take advantage of FastAPI’s async/await support for handling asynchronous operations efficiently.

Example FastAPI Application Structure

Here is an example of how you can structure your FastAPI application:


myapp/
├── main.py
├── routes/
│ ├── __init__.py
│ ├── auth.py
│ ├── users.py
├── models/
│ ├── __init__.py
│ ├── user.py
└── utils/
├── __init__.py
├── validation.py


In this example, we have separate modules for routes, models, and utilities. Each module contains related code that can be easily managed and maintained.

Conclusion

Structuring your applications using FastAPI can help you build scalable and maintainable APIs. By organizing your code into separate modules and using FastAPI features like routers and dependencies, you can create clean and efficient code that is easy to manage and extend.

Thank you for reading this FastAPI tutorial on structuring your applications. Happy coding!