Return slug in /api/v4/projects/ID/services

changelogs/unreleased/return_slug_in_api_services_index.yml

+---
+title: Add slug to services API response
+merge_request: 22518
+author:
+type: added

doc/api/services.md

@@ -19,6 +19,7 @@ Example response:
   {
     "id": 75,
     "title": "Jenkins CI",
+    "slug": "jenkins",
     "created_at": "2019-11-20T11:20:25.297Z",
     "updated_at": "2019-11-20T12:24:37.498Z",
     "active": true,
@@ -38,6 +39,7 @@ Example response:
   {
     "id": 76,
     "title": "Alerts endpoint",
+    "slug": "alerts",
     "created_at": "2019-11-20T11:20:25.297Z",
     "updated_at": "2019-11-20T12:24:37.498Z",
     "active": true,
@@ -753,6 +755,7 @@ Example response:
 {
   "id": 4,
   "title": "Slack slash commands",
+  "slug": "slack-slash-commands",
   "created_at": "2017-06-27T05:51:39-07:00",
   "updated_at": "2017-06-27T05:51:39-07:00",
   "active": true,

lib/api/entities.rb

@@ -1129,7 +1129,11 @@ module API
     end
 
     class ProjectServiceBasic < Grape::Entity
-      expose :id, :title, :created_at, :updated_at, :active
+      expose :id, :title
+      expose :slug do |service|
+        service.to_param.dasherize
+      end
+      expose :created_at, :updated_at, :active
       expose :commit_events, :push_events, :issues_events, :confidential_issues_events
       expose :merge_requests_events, :tag_push_events, :note_events
       expose :confidential_note_events, :pipeline_events, :wiki_page_events

spec/fixtures/api/schemas/public_api/v4/service.json

@@ -3,6 +3,7 @@
   "properties": {
     "id": { "type": "integer" },
     "title": { "type": "string" },
+    "slug": { "type": "string" },
     "created_at": { "type": "date-time" },
     "updated_at": { "type": "date-time" },
     "active": { "type": "boolean" },

spec/requests/api/services_spec.rb

@@ -35,6 +35,7 @@ describe API::Services do
           expect(response).to have_gitlab_http_status(200)
           expect(json_response).to be_an Array
           expect(json_response.count).to eq(1)
+          expect(json_response.first['slug']).to eq('emails-on-push')
           expect(response).to match_response_schema('public_api/v4/services')
         end
       end
@@ -61,6 +62,7 @@ describe API::Services do
         put api("/projects/#{project.id}/services/#{dashed_service}?#{query_strings}", user), params: service_attrs
 
         expect(response).to have_gitlab_http_status(200)
+        expect(json_response['slug']).to eq(dashed_service)
         events.each do |event|
           next if event == "foo"