Authlib Loginpass

Authlib Loginpass provides a high-level wrapper around Authlib to simplify social connections in Flask and Django applications. To use it with Flask, you need to:

1. Initialize your Flask app and an OAuth instance.
2. Define a callback function (handle_authorize) that processes the remote provider, the token, and the user_info.
3. Select your desired backends (e.g., Twitter, GitHub, Google).
4. Create a blueprint using create_flask_blueprint and register it with your app.

Note: This library works best with Authlib v0.14.3+.

from flask import Flask
from authlib.integrations.flask_client import OAuth
from loginpass import create_flask_blueprint
from loginpass import Twitter, GitHub, Google

app = Flask(__name__)
oauth = OAuth(app)

def handle_authorize(remote, token, user_info):
    if token:
        save_token(remote.name, token)
    if user_info:
        save_user(user_info)
        return user_page
    raise some_error

backends = [Twitter, GitHub, Google]
bp = create_flask_blueprint(backends, oauth, handle_authorize)
app.register_blueprint(bp, url_prefix='')