A Simple 🤓 yet Powerful 🚀 Server with Python 🐍

Python is very well known for it's simplicity 🤩. Which is a plus point if you are just getting started in the programming world.

In this post, you'll be learning how to create a simple FastAPI 🚀 server in Python 🐍.

FastAPI is really handy to get started with backend development in python. In this post, you'll see a simple code demo of FastAPI.

So let's get started 🚀

Setup Python Environment

Open a directory, open terminal or cmd and write the following command to create a virtual environment with Python v3

$ python3 -v venv env

Activate the Virtual Environment

Windows

$ .\env\Scripts\activate

Linux or Mac

$ . env/bin/activate

Install the Dependencies

Install FastAPI and other dependencies

(env) $ pip install fastapi "uvicorn[standard]"

Code 🚀

Create main.py file

Import FastAPI

from fastapi import FastAPI

Create FastAPI instance, app

app = FastAPI()

Write a route, on which you will be hitting the server (Requesting for some Resource).

@app.get("/")

This is a root route (eg. http://127.0.0.1:8000/)

Now, Write a function, which will be trigerred when you hit this API end-point

def index():
    return {"msg": "Hello, World!"}

Full Code 🤓

Combining the above script will result the main.py a this-

from fastapi import FastAPI

app = FastAPI()

@app.get("/")
def index():
    return {"msg": "Hello, World!"}

Spin up the FastAPI Server 🚀

(env) $ uvicorn main:app --reload

INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [28720]
INFO:     Started server process [28722]
INFO:     Waiting for application startup.
INFO:     Application startup complete.