FastLink

OAuth 2.0 client for various platforms, asynchronous, easy-to-use, extensible

---

---

Features

• All-in-one: Supports popular platforms like Google, Yandex, Telegram, etc.
• Asynchronous: Built on top of httpx is fully asynchronous.
• Easy-to-use: Simple and intuitive API for quick integration.
• Extensible: Easily add support for new platforms or customize existing ones.

Installation

pip install fastlink

Get Started

fromtypingimportAnnotated, AnyfromfastapiimportDepends, FastAPIfromfastapi.responsesimportRedirectResponsefromexamples.configimportsettingsfromfastlinkimportGoogleSSOfromfastlink.schemasimportOAuth2Callback, OpenIDapp=FastAPI()
sso=GoogleSSO(
settings.google_client_id,
settings.google_client_secret,
"http://localhost:8000/callback",
)
@app.get("/login")asyncdeflogin() ->RedirectResponse:
asyncwithsso:
url=awaitsso.login_url()
returnRedirectResponse(url=url)
@app.get("/callback")asyncdefcallback(call: Annotated[OAuth2Callback, Depends()]) ->OpenID:
asyncwithsso:
returnawaitsso.callback(call)

Now you can run the server and visit http://localhost:8000/login to start the OAuth 2.0 flow.

After logging into Google, you will be redirected to the callback URL. The server will then fetch the user's OpenID information and return it as a response.