Use struct instead of hash

app/services/ci/create_trigger_request_service.rb

 module Ci
   module CreateTriggerRequestService
+    Result = Struct.new(:trigger_request, :pipeline)
+
     def self.execute(project, trigger, ref, variables = nil)
       trigger_request = trigger.trigger_requests.create(variables: variables)
 
       pipeline = Ci::CreatePipelineService.new(project, trigger.owner, ref: ref)
         .execute(:trigger, ignore_skip_ci: true, trigger_request: trigger_request)
 
-      { trigger_request: trigger_request,
-        pipeline: pipeline }
+      Result.new(trigger_request, pipeline)
     end
   end
 end

lib/api/triggers.rb

@@ -28,7 +28,7 @@ module API
 
         # create request and trigger builds
         result = Ci::CreateTriggerRequestService.execute(project, trigger, params[:ref].to_s, variables)
-        pipeline = result[:pipeline]
+        pipeline = result.pipeline
 
         if pipeline.persisted?
           present pipeline, with: Entities::Pipeline

lib/api/v3/triggers.rb

@@ -29,10 +29,10 @@ module API
 
           # create request and trigger builds
           result = Ci::CreateTriggerRequestService.execute(project, trigger, params[:ref].to_s, variables)
-          pipeline = result[:pipeline]
+          pipeline = result.pipeline
 
           if pipeline.persisted?
-            present result[:trigger_request], with: ::API::V3::Entities::TriggerRequest
+            present result.trigger_request, with: ::API::V3::Entities::TriggerRequest
           else
             render_validation_error!(pipeline)
           end

lib/ci/api/triggers.rb

@@ -25,10 +25,10 @@ module Ci
 
           # create request and trigger builds
           result = Ci::CreateTriggerRequestService.execute(project, trigger, params[:ref], variables)
-          pipeline = result[:pipeline]
+          pipeline = result.pipeline
 
           if pipeline.persisted?
-            present result[:trigger_request], with: Entities::TriggerRequest
+            present result.trigger_request, with: Entities::TriggerRequest
           else
             render_validation_error!(pipeline)
           end

spec/services/ci/create_trigger_request_service_spec.rb

@@ -17,26 +17,26 @@ describe Ci::CreateTriggerRequestService, services: true do
       subject { service.execute(project, trigger, 'master') }
 
       context 'without owner' do
-        it { expect(subject[:trigger_request]).to be_kind_of(Ci::TriggerRequest) }
-        it { expect(subject[:trigger_request].builds.first).to be_kind_of(Ci::Build) }
-        it { expect(subject[:pipeline]).to be_kind_of(Ci::Pipeline) }
-        it { expect(subject[:pipeline]).to be_trigger }
+        it { expect(subject.trigger_request).to be_kind_of(Ci::TriggerRequest) }
+        it { expect(subject.trigger_request.builds.first).to be_kind_of(Ci::Build) }
+        it { expect(subject.pipeline).to be_kind_of(Ci::Pipeline) }
+        it { expect(subject.pipeline).to be_trigger }
       end
 
       context 'with owner' do
-        it { expect(subject[:trigger_request]).to be_kind_of(Ci::TriggerRequest) }
-        it { expect(subject[:trigger_request].builds.first).to be_kind_of(Ci::Build) }
-        it { expect(subject[:trigger_request].builds.first.user).to eq(owner) }
-        it { expect(subject[:pipeline]).to be_kind_of(Ci::Pipeline) }
-        it { expect(subject[:pipeline]).to be_trigger }
-        it { expect(subject[:pipeline].user).to eq(owner) }
+        it { expect(subject.trigger_request).to be_kind_of(Ci::TriggerRequest) }
+        it { expect(subject.trigger_request.builds.first).to be_kind_of(Ci::Build) }
+        it { expect(subject.trigger_request.builds.first.user).to eq(owner) }
+        it { expect(subject.pipeline).to be_kind_of(Ci::Pipeline) }
+        it { expect(subject.pipeline).to be_trigger }
+        it { expect(subject.pipeline.user).to eq(owner) }
       end
     end
 
     context 'no commit for ref' do
       subject { service.execute(project, trigger, 'other-branch') }
 
-      it { expect(subject[:pipeline]).not_to be_persisted }
+      it { expect(subject.pipeline).not_to be_persisted }
     end
 
     context 'no builds created' do
@@ -46,7 +46,7 @@ describe Ci::CreateTriggerRequestService, services: true do
         stub_ci_pipeline_yaml_file('script: { only: [develop], script: hello World }')
       end
 
-      it { expect(subject[:pipeline]).not_to be_persisted }
+      it { expect(subject.pipeline).not_to be_persisted }
     end
   end
 end