Remote DataSet json traversal?

Hello,
If i had a json response that looks like this:

with the root being “records”
and i’d want one of the url’s to be an external image column,
how would i write the path for that column, since it’s inside an array do I write:

fields.Annonsbild.url
or
fields.Annonsbild.0.url

or how does that work?

Regards,
Frank