categories

An array of content category specifications to use when searching for items.

The full path of each category is required and an OR relationship is applied between the categories within a particular string.

There can be up to 8 strings with an AND relationship being applied between the different strings.

For example, to search for items belonging to either the water or forest categories, both within the US, specify 2 strings as follows: "/Categories/Water,/Categories/Forest" and "/Region/US". Each entry in the array is a string containing a comma-separated list of up to 8 group content categories.