facebook flask-dance.py

app.py

from flask import Flask, url_for, redirect
from flask_dance.consumer import OAuth2ConsumerBlueprint

app = Flask(__name__)
app.secret_key = "<ISHOULDBESOMETHING>"
batman_example = OAuth2ConsumerBlueprint(
    "batman-example", __name__,
    client_id="<CLIENT_ID>",
    client_secret="<SECRET>",
    base_url="https://graph.facebook.com",
    authorization_url="https://www.facebook.com/dialog/oauth",
    token_url="https://graph.facebook.com/oauth/access_token",
)
app.register_blueprint(batman_example, url_prefix="/login")


@app.route("/")
def index():
    if not batman_example.session.authorized:
        return redirect(url_for("batman-example.login"))
    resp = batman_example.session.get("me")
    assert resp.ok
    return resp.text

if __name__ == "__main__":
    app.run(port=8080, debug=True)