1 files changed, 23 insertions, 0 deletions

diff --git a/app/assets/javascripts/issues/dashboard/utils.js b/app/assets/javascripts/issues/dashboard/utils.js
new file mode 100644
index 00000000000..6fa95b38649
--- /dev/null
+++ b/app/assets/javascripts/issues/dashboard/utils.js
@@ -0,0 +1,23 @@
+import fuzzaldrinPlus from 'fuzzaldrin-plus';
+import { MAX_LIST_SIZE } from '~/issues/list/constants';
+import axios from '~/lib/utils/axios_utils';
+
+export class AutocompleteCache {
+  constructor() {
+    this.cache = {};
+  }
+
+  fetch({ url, cacheName, searchProperty, search }) {
+    if (this.cache[cacheName]) {
+      const data = search
+        ? fuzzaldrinPlus.filter(this.cache[cacheName], search, { key: searchProperty })
+        : this.cache[cacheName].slice(0, MAX_LIST_SIZE);
+      return Promise.resolve(data);
+    }
+
+    return axios.get(url).then(({ data }) => {
+      this.cache[cacheName] = data;
+      return data.slice(0, MAX_LIST_SIZE);
+    });
+  }
+}