> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rebellapp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# my.setStorage

> Store data in local cache asynchronously.

Use this API to store data with a specified key in local cache. Overwrites existing data with the same key.

## Parameters

| Property | Type          | Required | Description                   |
| -------- | ------------- | -------- | ----------------------------- |
| key      | String        | Yes      | Storage key identifier        |
| data     | Object/String | Yes      | Data to store                 |
| success  | Function      | No       | Callback on success           |
| fail     | Function      | No       | Callback on failure           |
| complete | Function      | No       | Callback that always executes |

## Limits

* Single data item: max 200KB
* Total storage per Mini Program: max 10MB

## Code Example

```javascript theme={null}
my.setStorage({
  key: 'userSettings',
  data: { theme: 'dark', language: 'en' },
  success: () => {
    console.log('Data saved');
  }
});
```

## Related APIs

<CardGroup cols={2}>
  <Card title="my.getStorage" icon="download" href="/jsapi/storage/my.getStorage">
    Get stored data
  </Card>

  <Card title="my.setStorageSync" icon="bolt" href="/jsapi/storage/my.setStorageSync">
    Store data synchronously
  </Card>
</CardGroup>