#434

backend/app/controllers/concerns/counts_listing.rb

@@ -0,0 +1,19 @@
+module CountsListing
+  extend ActiveSupport::Concern
+
+  def index
+    locale = resolve_locale!
+    resource = is_a?(CountsPostsController) ? 'posts' : 'tags'
+    query = CountsQuery.new(version_scope, resource, request.query_parameters.except('locale')
+        .merge('locale' => locale.code))
+    result = { count: query.count, page: query.page, limit: query.limit }
+    if query.mode == 'summary'
+      result.merge!(query.summary)
+    else
+      result[:versions] = serialise_versions(query.details(version_scope), locale.language_code)
+    end
+    render json: result
+  rescue ArgumentError, TypeError
+    head :bad_request
+  end
+end