frontend > app

app/stores/ErrorsStore.js

@@ -0,0 +1,18 @@
+// @flow
+import { observable, action } from 'mobx';
+
+class ErrorsStore {
+  @observable data = observable.array([]);
+
+  /* Actions */
+
+  @action add = (message: string): void => {
+    this.data.push(message);
+  };
+
+  @action remove = (index: number): void => {
+    this.data.splice(index, 1);
+  };
+}
+
+export default ErrorsStore;