Merge branch '39639-clusters-poll' into 'master'

Adds callback function to initial cluster request

Closes #39639

See merge request gitlab-org/gitlab-ce!15105

app/assets/javascripts/clusters.js

@@ -64,19 +64,16 @@ export default class Clusters {
     this.poll = new Poll({
       resource: this.service,
       method: 'fetchData',
-      successCallback: (data) => {
-        const { status, status_reason } = data.data;
-        this.updateContainer(status, status_reason);
-      },
-      errorCallback: () => {
-        Flash(s__('ClusterIntegration|Something went wrong on our end.'));
-      },
+      successCallback: data => this.handleSuccess(data),
+      errorCallback: () => Clusters.handleError(),
     });
 
     if (!Visibility.hidden()) {
       this.poll.makeRequest();
     } else {
-      this.service.fetchData();
+      this.service.fetchData()
+        .then(data => this.handleSuccess(data))
+        .catch(() => Clusters.handleError());
     }
 
     Visibility.change(() => {
@@ -88,6 +85,15 @@ export default class Clusters {
     });
   }
 
+  static handleError() {
+    Flash(s__('ClusterIntegration|Something went wrong on our end.'));
+  }
+
+  handleSuccess(data) {
+    const { status, status_reason } = data.data;
+    this.updateContainer(status, status_reason);
+  }
+
   hideAll() {
     this.errorContainer.classList.add('hidden');
     this.successContainer.classList.add('hidden');

changelogs/unreleased/39639-clusters-poll.yml

+---
+title: Adds callback functions for initial request in clusters page
+merge_request:
+author:
+type: fixed