Learn how to use Python & FastAPI creating a CRUD app

Beginner’s Tutorial

If you are new to Python and FastAPI, this tutorial will guide you through creating a CRUD (Create, Read, Update, Delete) app using FastAPI. FastAPI is a modern web framework for building APIs with Python that is fast, simple, and easy to use.

Step 1: Install FastAPI

First, you will need to install FastAPI using pip:

pip install fastapi

Step 2: Create a new Python file

Create a new Python file, for example app.py, and add the following code to create a FastAPI application:


from fastapi import FastAPI

@app.get("/")
def read_root():
return {"Hello": "World"}


Step 3: Run the FastAPI application

To run your FastAPI application, use the following command:

uvicorn app:app --reload

Step 4: Test your FastAPI application

Open your web browser and navigate to http://127.0.0.1:8000 to see the output of your FastAPI application.

Step 5: Add CRUD endpoints

To create CRUD endpoints, you will need to add functions for creating, reading, updating, and deleting data from your app. Here is an example of adding a CRUD endpoint for creating data:


@app.post("/items/")
def create_item(item: Item):
return item


Step 6: Test your CRUD endpoints

Test your CRUD endpoints by using tools like Postman or cURL to send requests to your FastAPI application.

With this tutorial, you have learned how to use Python and FastAPI to create a CRUD app. Feel free to explore more features of FastAPI and build more complex applications.