flask before request – add exception for specific route

There are a couple of properties on the request object you can check, documented here, request.path is probably what you want. Can I suggest request.endpoint though, so you’ll be covered should you decide to route your view to another url, or multiple urls

@app.before_request
def before_request():
    if 'logged_in' not in session and request.endpoint != 'login':
        return redirect(url_for('login'))