Fix wrong scope for approvedBy in MR GraphQL API

app/graphql/resolvers/concerns/resolves_merge_requests.rb

@@ -40,7 +40,7 @@ module ResolvesMergeRequests
       author: [:author],
       merged_at: [:metrics],
       commit_count: [:metrics],
-      approved_by: [:approver_users],
+      approved_by: [:approved_by_users],
       milestone: [:milestone],
       head_pipeline: [:merge_request_diff, { head_pipeline: [:merge_request] }]
     }

app/graphql/types/merge_request_type.rb

@@ -174,10 +174,6 @@ module Types
     def commit_count
       object&.metrics&.commits_count
     end
-
-    def approvers
-      object.approver_users
-    end
   end
 end
 Types::MergeRequestType.prepend_if_ee('::EE::Types::MergeRequestType')

changelogs/unreleased/fix-wrong-scope-in-approved-by.yml

+---
+title: Fix approvedBy filed in MR GraphQL API
+merge_request: 43705
+author:
+type: fixed

ee/app/graphql/ee/types/merge_request_type.rb

@@ -16,7 +16,7 @@ module EE
               description: 'Users who approved the merge request'
 
         def approved_by
-          object.approver_users
+          object.approved_by_users
         end
       end
     end

ee/spec/requests/api/graphql/project/merge_requests_spec.rb

@@ -39,7 +39,7 @@ RSpec.describe 'getting merge request listings (EE) nested in a project' do
     let(:requested_fields) { query_graphql_field(:approved_by, nil, query_graphql_field(:nodes, nil, [:username])) }
 
     it 'exposes approver username' do
-      merge_request_a.approver_users << current_user
+      merge_request_a.approved_by_users << current_user
 
       execute_query