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

Spin up the FastAPI Server

(env) $ uvicorn main:app --reloadINFO:     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.

Now, open http://127.0.0.1:8000/ in your browser, you'll se your first server serving the clients.

Explore FastAPI

Now, you have your first server running. You can walk through the FastAPI Docs. and explore the possibilities.

Hurray! You just learned how to setted up A Simple yet Powerful Server with Python .

I hope, you guys liked this quick tutorial. If so, then please don't forget to drop a Like

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Happy Coding!