How do I set up OAuth in a Flask application?

How do I set up OAuth in a Flask application?

To set up OAuth in a Flask application, you can use the Flask-OAuthlib or Authlib library. Would you like a step-by-step guide?

Yes, please provide the steps.

First, install Authlib using pip: pip install Authlib. Then, create a Flask app and configure your OAuth provider settings.

What are the key configurations I need to set?

You need to set the client ID, client secret, authorization URL, and token URL provided by your OAuth provider.

Can you show me a code example?

Sure! Here's a basic example:

from flask import Flask, redirect, url_for
from authlib.integrations.flask_client import OAuth

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

# Configure OAuth
oauth.register('provider_name',
    client_id='YOUR_CLIENT_ID',
    client_secret='YOUR_CLIENT_SECRET',
    access_token_url='https://provider.com/oauth/token',
    authorize_url='https://provider.com/oauth/authorize',
)

@app.route('/login')
def login():
    redirect_uri = url_for('authorize', _external=True)
    return oauth.provider_name.authorize_redirect(redirect_uri)

@app.route('/authorize')
def authorize():
    token = oauth.provider_name.authorize_access_token()
    return 'Logged in!'

This sets up a basic OAuth flow.