I am creating a project in HubSpot React, and I am trying to fetch the CRM API (Contact, Company, Deal, etc.). I read about the data-fetching method for HubSpot React, which only reads data, but I want to store and update the data as well. How can I do that? When I access the API directly, I encounter CORS errors, so is there any way to avoid CORS errors and still store and update the data?