Add total results of search in header

app/controllers/v1/search_controller.rb

@@ -4,7 +4,9 @@ class V1::SearchController < ApplicationController
   # GET v1/search
   # GET v1/search.json
   def index
-    render json: SearchService.search(@search, current_user), status: :ok
+    search = SearchService.search(@search, current_user)
+    headers['X-Total-Count'] = search.total_count
+    render json: search.results, status: :ok
   rescue SearchService::InvalidSearchError
     render json: @search.errors, status: :bad_request
   end

app/services/search_service.rb

@@ -5,7 +5,7 @@ module SearchService
 
   def self.search(search, user)
     model = instance(search, user)
-    model.search.results
+    model.search
   end
 
   def self.autocomplete(search, user)

test/services/search_service_test.rb

@@ -4,21 +4,21 @@ class SearchServiceTest < ActiveSupport::TestCase
   test 'fetch learning object with all search params' do
     reindex LearningObject
 
-    search = SearchService.search(Search.new(los_complete_search), users(:john))
+    search = SearchService.search(Search.new(los_complete_search), users(:john)).results
     search.each {|o| assert_instance_of LearningObject, o}
   end
 
   test 'fetch all public collections' do
     reindex Collection
 
-    search = SearchService.search(Search.new(collections_search), users(:john))
+    search = SearchService.search(Search.new(collections_search), users(:john)).results
     search.each {|o| assert_instance_of Collection, o}
   end
 
   test 'fetch users named john' do
     reindex User
 
-    search = SearchService.search(Search.new(users_john_search), users(:john))
+    search = SearchService.search(Search.new(users_john_search), users(:john)).results
     assert_equal [users(:john), users(:one)], search
   end