Support array indices in JSON field paths

[mariusoe]

Hi,

when using a PayloadSubsectionExtractor (e.g. FieldPathPayloadSubsectionExtractor) to extract a subsection of a JSON payload, array indices are ignored.

I would assume that when a path is used like Outer[].Nested[0].Attribute only the first (in this example Nested) element or which is matching the specified index will match the given path and, thus, returned. But it extracts always all elements which results in a PayloadHandlingException({PATH} + " does not uniquely identify a subsection of the payload").

[wilkinsona]

That's working as (currently) designed. There's no support for array indices anywhere in REST Docs at the moment.

[dibog]

+1 from me for the enhancement request

[florensie]

If it's not supported, it shouldn't be parsed either. Currently it's possible to use path.to.array[0] and the index will be ignored, creating confusing results.