— I feel like we exchanged mails recently. Haha !
What dop2000 means is that you usually preload all JSON data on the loader layout, storing it in either variables, global dictionary and such to be parsed later, or you can also load the data directly in its corresponding object.
However, knowing what your use is, you will probably have to end up storing the JSON as text, and parse it on demand depending on what files (dialogues) you currently need.