i'm planning to write an application with GatsbyJS and sourcing data from Drupal. But for some application parts i want to have access to Drupal at some routes. For example page will be reachable at domain.com/. When user hits the page GatsbyJS should run at default route "/", in addition i want to create subpage /quiz. Here I don't want to write React code to handle form creation with API that takes data from Drupal, i want to leverage from Webforms module straight from Drupal. How can i approach the problem do i need some front server side route resolver? Thanks for any hints.