Learn TORNADO with Real Code Examples

Single-threaded event loop (IOLoop)

Non-blocking asynchronous request handling

Handler classes for routes

Supports both HTTP and TCP servers

Integration with third-party async libraries

Client sends HTTP request -> Tornado IOLoop

RequestHandler or WebSocketHandler processes request

Async operations performed if needed

Response generated and sent back

IOLoop continues handling other connections

Event-loop for non-blocking I/O

Handler-based routing

Async coroutines for concurrency

Modular extensions and utilities

WebSocket and streaming support

Real-time chat servers

Streaming dashboards

WebSocket-based APIs

IoT notification backends

High-concurrency microservices

Non-blocking, asynchronous I/O

Single-threaded event loop for high concurrency

Lightweight and modular framework

Flexible handler-based routing

Real-time and streaming-friendly design

Use multiple Tornado processes for horizontal scaling

Implement caching for high-traffic endpoints

Load balance with Nginx or HAProxy

Optimize IOLoop usage

Monitor and profile server performance

Adapt from Flask/Django by replacing blocking handlers with async

Use RequestHandler/WebSocketHandler

Replace WSGI-specific middleware

Test async endpoints thoroughly

Monitor event loop for blocking operations