1 files changed, 52 insertions, 0 deletions
diff --git a/app/workers/merge_requests/close_issue_worker.rb b/app/workers/merge_requests/close_issue_worker.rb
new file mode 100644
index 00000000000..86d63e571ac
--- /dev/null
+++ b/app/workers/merge_requests/close_issue_worker.rb
@@ -0,0 +1,52 @@
+# frozen_string_literal: true
+
+module MergeRequests
+  class CloseIssueWorker
+    include ApplicationWorker
+
+    data_consistency :always
+    feature_category :code_review
+    urgency :low
+    idempotent!
+
+    # Issues:CloseService execute webhooks which are treated as external dependencies
+    worker_has_external_dependencies!
+
+    # This worker only accepts ID of an Issue. We are intentionally using this
+    # worker to close Issues asynchronously as we only experience SQL timeouts
+    # when closing an Issue.
+    def perform(project_id, user_id, issue_id, merge_request_id)
+      project = Project.find_by_id(project_id)
+
+      unless project
+        logger.info(structured_payload(message: 'Project not found.', project_id: project_id))
+        return
+      end
+
+      user = User.find_by_id(user_id)
+
+      unless user
+        logger.info(structured_payload(message: 'User not found.', user_id: user_id))
+        return
+      end
+
+      issue = Issue.find_by_id(issue_id)
+
+      unless issue
+        logger.info(structured_payload(message: 'Issue not found.', issue_id: issue_id))
+        return
+      end
+
+      merge_request = MergeRequest.find_by_id(merge_request_id)
+
+      unless merge_request
+        logger.info(structured_payload(message: 'Merge request not found.', merge_request_id: merge_request_id))
+        return
+      end
+
+      Issues::CloseService
+        .new(project: project, current_user: user)
+        .execute(issue, commit: merge_request)
+    end
+  end
+end