populating index from JSON data and performing simple facet serach
facets:
 - shop_category/{SHOP_CATEGORY} (where {SHOP_CATEGORY} is value of the given field in JSON i.e. shop_category/supermarket
Playing wit facets
facets:
 - shop_category/{SHOP_CATEGORY}/{AREA} (where {SHOP_CATEGORY} is value of the field in JSON e.g. shop_category: cafe, and {AREA} is also field area from JSON e.g. Fulham