litellm/proxy/example_config_yaml/custom_auth.py

from litellm.proxy._types import UserAPIKeyAuth
from fastapi import Request
from dotenv import load_dotenv
import os

load_dotenv()


async def user_api_key_auth(request: Request, api_key: str) -> UserAPIKeyAuth:
    try:
        modified_master_key = f"{os.getenv('PROXY_MASTER_KEY')}-1234"
        if api_key == modified_master_key:
            return UserAPIKeyAuth(api_key=api_key)
        raise Exception
    except:
        raise Exception