fastapi_rest_api_versioning_with_apirouter_prefix.py

1from fastapi import FastAPI, APIRouter
2
3app = FastAPI()
4
5# --- Version 1 Logic ---
6v1_router = APIRouter(prefix="/v1")
7
8@v1_router.get("/items")
9async def read_v1_items():
10    return [{"item_id": "Portal Gun", "version": "v1"}]
11
12# --- Version 2 Logic ---
13v2_router = APIRouter(prefix="/v2")
14
15@v2_router.get("/items")
16async def read_v2_items():
17    return [{"item_id": "Portal Gun", "version": "v2", "description": "Now with more portals"}]
18
19# Include routers in the main app
20app.include_router(v1_router)
21app.include_router(v2_router)
22
23if __name__ == "__main__":
24    import uvicorn
25    uvicorn.run(app, host="0.0.0.0", port=8000)