Allow suggesting single line changes in diffs

1 files changed, 31 insertions, 0 deletions

diff --git a/lib/api/suggestions.rb b/lib/api/suggestions.rb
new file mode 100644
index 00000000000..d008d1b9e97
--- /dev/null
+++ b/lib/api/suggestions.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+module API
+  class Suggestions < Grape::API
+    before { authenticate! }
+
+    resource :suggestions do
+      desc 'Apply suggestion patch in the Merge Request it was created' do
+        success Entities::Suggestion
+      end
+      params do
+        requires :id, type: String, desc: 'The suggestion ID'
+      end
+      put ':id/apply' do
+        suggestion = Suggestion.find_by_id(params[:id])
+
+        not_found! unless suggestion
+        authorize! :apply_suggestion, suggestion
+
+        result = ::Suggestions::ApplyService.new(current_user).execute(suggestion)
+
+        if result[:status] == :success
+          present suggestion, with: Entities::Suggestion, current_user: current_user
+        else
+          http_status = result[:http_status] || 400
+          render_api_error!(result[:message], http_status)
+        end
+      end
+    end
+  end
+end