fastapi_middleware_toolkit.cors

CORS middleware setup for FastAPI applications.

Extracted from GridFlow backend/src/infrastructure/app_factory.py lines 46-59

Functions

setup_cors_middleware(→ None)

Setup CORS middleware with secure defaults.

Module Contents

fastapi_middleware_toolkit.cors.setup_cors_middleware(app: fastapi.FastAPI, allowed_origins: str | List[str], allow_credentials: bool = False, allowed_methods: List[str] = None, allowed_headers: List[str] = None, max_age: int = 600) → None

Setup CORS middleware with secure defaults.

Args:

app: FastAPI application instance allowed_origins: List of allowed origins or single origin string allow_credentials: Whether to allow credentials (cookies, auth headers) allowed_methods: HTTP methods to allow (default: [“GET”, “POST”]) allowed_headers: Headers to allow (default: standard headers) max_age: Preflight cache time in seconds (default: 600)

Example:

>>> from fastapi import FastAPI
>>> app = FastAPI()
>>> setup_cors_middleware(
...     app,
...     allowed_origins=["http://localhost:3000"],
...     allow_credentials=False
... )