There used to be finders for announcements, publications and statistics in this application, however these have been replaced by new finders rendered by finder-frontend and published from search-api.
We redirect searches from the old finders to the new in order to maintain a reasonable experience for users. Because we need to translate some of the query parameters, we do it in the controllers:
How to publish a finder in whitehall
Please consider publishing new finders from search-api. There are schema tests for both finders and email signup pages there.
Create a JSON file in lib/finders. You can base it on one of the existing files in that folder.
Double-check the filter format and document noun - the filter format is used for search_api to return the data, while the document noun is displayed to the user.
The default_documents_per_page key can be used to paginate very long finders (see whitehall/lib/finders/case_studies.json for an example).