diff --git a/README.md b/README.md
index 0a43135..bc72ac3 100644
--- a/README.md
+++ b/README.md
@@ -8,17 +8,17 @@
 
 ### How to install
 ```bash
-npm install vuex-simple-cache
+npm install @vencakrecl/vuex-simple-cache
 ```
 ```bash
-yarn add vuex-simple-cache
+yarn add @vencakrecl/vuex-simple-cache
 ```
 
 ### How to use
 ```js
 import Vue from 'vue';
 import Vuex, { Store } from 'vuex';
-import VuexSimpleCache from 'vuex-simple-cache';
+import VuexSimpleCache from '@vencakrecl/vuex-simple-cache';
 
 Vue.use(Vuex);
 
@@ -53,6 +53,7 @@ store.registerModule('test', {
 * key - name of key from vuex state
 * action - standard vuex action
 * expiration - time in seconds 
+* onCache - callback for cached data (default return cached data) 
 
 [npm]: https://img.shields.io/npm/v/@vencakrecl/vuex-simple-cache.svg?style=flat-square
 [license]: https://img.shields.io/npm/l/@vencakrecl/vuex-simple-cache.svg?style=flat-square
diff --git a/package.json b/package.json
index f0661ab..29ffb1e 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "@vencakrecl/vuex-simple-cache",
   "author": "Venca Krecl <venca.email@gmail.com>",
   "description": "Simple cache for vuex action",
-  "version": "1.0.0-alpha.9",
+  "version": "1.0.0-beta.0",
   "license": "MIT",
   "repository": {
     "type": "git",
@@ -27,6 +27,7 @@
     "build": "tsdx build",
     "test": "tsdx test",
     "lint": "tsdx lint",
+    "lint-fix": "tsdx lint --fix",
     "prepare": "tsdx build",
     "size": "size-limit",
     "analyze": "size-limit --why",
diff --git a/src/index.ts b/src/index.ts
index 82d5f76..422d230 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -10,7 +10,10 @@ class VuexSimpleCache {
   public cacheAction = <S extends Record<string, any>, R>(
     key: string,
     action: (context: ActionContext<S, R>) => any,
-    expiration: number = 0
+    expiration: number = 30,
+    onCache: (context: ActionContext<S, R>, data: any) => any = (_, data) => {
+      return data;
+    }
   ): any => {
     return (context: ActionContext<S, R>) => {
       if (!(key in context.state)) {
@@ -31,7 +34,7 @@ class VuexSimpleCache {
 
       if (Array.isArray(context.state[key])) {
         if (context.state[key].length) {
-          return context.state[key];
+          return onCache(context, context.state[key]);
         }
 
         return action(context);
@@ -39,14 +42,14 @@ class VuexSimpleCache {
 
       if (context.state[key] instanceof Object) {
         if (Object.keys(context.state[key]).length) {
-          return context.state[key];
+          return onCache(context, context.state[key]);
         }
 
         return action(context);
       }
 
       if (context.state[key]) {
-        return context.state[key];
+        return onCache(context, context.state[key]);
       }
 
       return action(context);