FastAPI

Query Parameters

Parse query strings with defaults and validation.

#query#params#validation

Code

fastapi

from fastapi import FastAPI, Query

app = FastAPI()

@app.get("/search")
def search(q: str = Query(..., min_length=2, max_length=50)):
    return {"q": q}

@app.get("/items")
def list_items(skip: int = 0, limit: int = Query(10, ge=1, le=100)):
    return {"skip": skip, "limit": limit}

@app.get("/tags")
def by_tags(tags: list[str] = Query(default=[])):
    return {"tags": tags}

All snippets