# To override flask-security's API response add the following into your app's configure_security(): @app.after_request def after_request(response): """Convert flask-security response into a format we can use Flask-security returns {'meta': {'code': 200}, 'response': { 'user': {...} } But we need {'code': 200, 'data': {'user': ...} } """ from nose.tools import set_trace; set_trace() if response.content_type == 'application/json': try: rdata = json.loads(response.data) ndata = dict(code=rdata.get('meta').get('code'), data=[rdata.get('response')]) response.data = json.dumps(ndata) except Exception as exc: app.logger.error('', exc_info=True) return response