1 files changed, 22 insertions, 0 deletions
diff --git a/modern/src/CachingController.js b/modern/src/CachingController.js
new file mode 100644
index 0000000..7adb39b
--- /dev/null
+++ b/modern/src/CachingController.js
@@ -0,0 +1,22 @@
+import {  useDispatch, useSelector } from 'react-redux';
+import { connect } from 'react-redux';
+import { geofencesActions } from './store';
+import { useEffectAsync } from './reactHelper';
+
+
+const CachingController = () => {
+  const authenticated = useSelector(state => !!state.session.user);
+  const dispatch = useDispatch();
+
+  useEffectAsync(async () => {
+    if (authenticated) {
+      const response = await fetch('/api/geofences');
+      if (response.ok) {
+        dispatch(geofencesActions.update(await response.json()));
+      }
+    }
+  }, [authenticated]);
+  return null;
+}
+
+export default connect()(CachingController);