Django / Flask / FastAPI Essentials

Master Django / Flask / FastAPI for Python Backend Development

Three powerful Python frameworks for building secure, scalable, and high-performance backend services and APIs.

Models Deployed

12,430+

Active Developers

58,900+

Key Features

Routing & Views

Define URL routes and view functions to handle HTTP requests and responses.

API Development

Build RESTful and async APIs using Flask’s decorators, Django REST Framework, or FastAPI’s type hints.

ORM & Database

Use Django ORM, SQLAlchemy, or Tortoise ORM to interact with databases.

Performance & Scalability

FastAPI supports async I/O, Flask is minimal and extensible, Django scales with built-in tools.

How It Works

Choose Framework

Pick Django for full-stack apps, Flask for flexibility, or FastAPI for async APIs.

Install Framework

Use pip: `pip install django`, `flask`, or `fastapi[all]`.

Define Routes

Create views or endpoints using decorators and route handlers.

Connect Database

Use ORM or raw SQL to interact with SQLite, PostgreSQL, or MySQL.

Run & Deploy

Start dev server and deploy using Gunicorn, Docker, or cloud platforms.

Code Example

// Django / Flask / FastAPI Model Training

# Django View
def hello(request):
    return HttpResponse("Hello from Django!")

# Flask Route
@app.route("/")
def hello():
    return "Hello from Flask!"

# FastAPI Endpoint
@app.get("/")
def hello():
    return {"message": "Hello from FastAPI!"}

Use Cases

Web Applications

Use Django’s admin, templates, and auth system for full-stack apps.

RESTful APIs

Build APIs with Flask or FastAPI for mobile, frontend, or microservices.

Async Services

FastAPI supports async endpoints for high-performance workloads.

Rapid Prototyping

Flask and FastAPI enable quick MVPs with minimal setup.

Integrations & Resources

Explore Django / Flask / FastAPI’s ecosystem and find the tools, platforms, and docs to accelerate your workflow.

Popular Integrations

PostgreSQL, MySQL, SQLite
SQLAlchemy, Django ORM, Tortoise ORM
Docker, Kubernetes, Gunicorn
JWT, OAuth2, Celery
GitHub, GitLab, Bitbucket

Helpful Resources

Django Docs Flask Docs FastAPI Docs Django GitHub Flask GitHub FastAPI GitHub

FAQ

Common questions about Django / Flask / FastAPI’s capabilities, usage, and ecosystem.