JSON API

By default the search page, the show page, and the facet list page can return JSON responses provided you set the format suffix:

Search results /catalog.json?search_field=all_fields&q=auckland

Facet list /catalog/facet/subject_topic_facet.json

Single record /catalog/2009002600.json

If you wish to alter the format of the returned JSON, you can override render_search_results_as_json and render_facet_list_as_json methods in CatalogController.

See: https://github.com/projectblacklight/blacklight/blob/master/lib/blacklight/catalog.rb#L175-L191