> ## 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.returnLoyaltyCardInfoToApp

> Return a selected loyalty card's information to the parent app.

Allow the user to select a loyalty card in the Mini Program and transmit that card's information back to the parent application.

## Parameters

| Property           | Type     | Required | Description                                                                |
| ------------------ | -------- | -------- | -------------------------------------------------------------------------- |
| cardId             | String   | No       | Identifier for the selected loyalty card                                   |
| merchantName       | String   | No       | Name of the card's merchant                                                |
| cardColor          | String   | No       | Gradient color as two hex values separated by `;` (e.g. `#033397;#011131`) |
| cardLogo           | String   | No       | Download URL for the card's logo image                                     |
| clearSelectedState | Boolean  | Yes      | `true` = no card selected or deleted · `false` = card actively selected    |
| success            | Function | No       | Callback on success                                                        |
| fail               | Function | No       | Callback on failure                                                        |

## Success Callback

| Property      | Type    | Description                                                 |
| ------------- | ------- | ----------------------------------------------------------- |
| success       | Boolean | Query success status                                        |
| resultCode    | String  | `0` success · `1000` invalid params · `1002` internal error |
| resultMessage | String  | Human-readable status message                               |

## Code Example

```javascript theme={null}
my.call('returnLoyaltyCardInfoToApp', {
  cardId: 'CARD_001',
  merchantName: 'Example Store',
  cardColor: '#033397;#011131',
  cardLogo: 'https://cdn.example.com/logo.png',
  clearSelectedState: false,
  success: (res) => {
    my.alert({ content: 'success: ' + JSON.stringify(res) });
  },
  fail: (error) => {
    my.alert({ content: 'error: ' + JSON.stringify(error) });
  }
});
```