I want to use the "Poll and External Website for JSON" connector in GeoEvent. The API I plan to poll requires you to first authenticate. Outside of GeoEvent, I have to first post a JSON with username/password to api/export/login. The API returns raw text "true" as a response when authenticated. Next, I have to post another JSON with search parameters to api/export/export. Any advice how to implement that in GeoEvent? I'm currently running version 10.3.1. Thanks very much in advance.