Json samples

Is it possible to provide some samples using json as a datasource. All samples use xml, while I rpefer json, but I can’t get it to work.It seems data structures are limited to fixed definitions?

Reformatted json file, seems to work now!

If problem is still actual - can you provide a sample of problematic json file.
Normally you can use structures similar to next for form|template

{ some:value }

and for other components

[ { some:value }, { some:value }, { some:value } ]