[guiriduro]

Our case is similar, albeit smaller, and we're only at the stage of considering the next step (from static, webpacked JSON.) Our application relies on several regionalised hefty product+metadata JSON files. Data changes, while infrequent (~2 per week), involve republishing. Especially for the (recently-added) mobile app, large downloads are a UX issue. Changes aren't easily isolated by file segregation, and can cross-cut, although of course we're looking at the right level of granularity (we do have a product hierarchy and price dimension.) The apps already rely on REST for a smaller part of their dynamic functionality, so providing the main bulk through CDN-cached REST is an option; GraphQL was superficially attractive but the CDN issues are a showstopper for adopting it, for now.