FastAuth

OAuth2 library for FastAPI.

Current providers

• Google
• GitHub
• Reddit
• Discord
• Spotify

Setup

This setup currently works, but up for change, since this project is still under development

from fastapi import FastAPI

from dotenv import load_dotenv
from os import getenv

from autheon.libtypes import UserInfo, FallbackSecrets

from autheon.jwts.helpers import generate_secret
from autheon.oauth2_options import OAuthOptions
from autheon.providers.google.google import Google

from autheon.adapters.fastapi.csrf_middleware import CSRFMitigationMiddleware

load_dotenv()


# What happens when someone logs in
async def push_to_db(user_info: UserInfo) -> None:
    with open("my_db", "w") as f:
        f.write(user_info["name"])


# One router takes care of everything
auth = OAuthOptions(
    debug=True,
    provider=Google(
        client_id=getenv("GOOGLE_CLIENT_ID"),
        client_secret=getenv("GOOGLE_CLIENT_SECRET"),
        redirect_uri=getenv("GOOGLE_REDIRECT_URI"),
    ),
    signin_callback=push_to_db,
    fallback_secrets=FallbackSecrets(
        secret_1=getenv("SECRET"),
        secret_2=generate_secret(),
        secret_3=generate_secret(),
        secret_4=generate_secret(),
        secret_5=generate_secret(),
    ),
)

app = FastAPI()
# Plug in the router
app.include_router(auth)

# Optional for OAuth flow, but highly recommended
app.add_middleware(CSRFMitigationMiddleware)

Usage

@app.get("/auth/in")
def logged():
    return "youre in"

@app.get("/auth/out")
def out():
    return "out"

Development setup

Checkout justfile

License

MIT