add vuex-persist

store/index.js

@@ -1,3 +1,24 @@
-export default {
+import Vuex from 'vuex';
+import state from './state';
+import VuexPersist from 'vuex-persist'
 
-}
+export default {
+  install(Vue) {
+    Vue.use(Vuex);
+
+    const vuexLocalStorage = new VuexPersist({
+      key: 'vuex',
+      storage: window.localStorage,
+      reducer: ({ ...request }) => ({
+        ...request
+      })
+    })
+
+    const store = new Vuex.Store({
+      state,
+      plugins: [vuexLocalStorage.plugin]
+    });
+
+    Vue.prototype.$store = store;
+  },
+};