API Versioning & Router Composition — Advanced FastAPI Patterns

Learn to version your API using APIRouter with prefixes and tags, composing multiple versioned routers into a single application.

What you'll learn

• Understand different API versioning strategies and when to use URL-based versioning
• Create separate APIRouter instances for each API version
• Use prefix and tags parameters to organize versioned routes
• Compose multiple routers into a single FastAPI application with include_router

Read the theory for API Versioning & Router Composition

All Advanced FastAPI Patterns lessons