# generateQRCode

## Description

Creates an image for a type of matrix barcode (QR Code).

## Input / Parameter

| Name  | Description                                                                 | Input Type  | Default | Options | Required |
| ----- | --------------------------------------------------------------------------- | ----------- | ------- | ------- | -------- |
| type  | Not currently in use by the function.                                       | String/Text | -       | -       | No       |
| value | The value to be attached to the QR code.                                    | String/Text | -       | -       | Yes      |
| logo  | An image base64 or URL of an image to be appended to the QR Code.           | String/Text | -       | -       | No       |
| extra | The value to be included to the 'callback' as a system value under 'extra'. | Any         | -       | -       | No       |

## Output

N/A

## Callback

### callback

It is executed after the function completeled generating the matrix barcode (QR Code).

| Description                     | Output Type |
| ------------------------------- | ----------- |
| Returns the image base64 value. | String/Text |

## Video

Coming Soon.

## Example

### Steps

1. First we add 2 components to the page:

   1. A button to generate the QR code
   2. `imgQR`, an image placeholder for the QR code once generated.

   ![](/files/mjyXXOTCpBu3e4rwSzxa)
2. Select the "Generate QR Local" button and add these 2 functions to the event flow:

   ![](/files/tRMpxfYpCJlnSxsNKu0y)
3. For `generateQRCode` function, the parameters are:

   ![](/files/rWcN2iH8DkCGWZRVw1R5)
4. For the `setComponentFunction`, we set the "component" value to "imgQR", the image placeholder created in step 1.

   ![](/files/eqhs6GEDhsaoZJbSxju2)

   For 'value', we add a subflow with the function "objectAttr" like so:

   ![](/files/10zYtambIWTd8BJl8xwy)

### Result

![](/files/3ZWk6iKAIxcD0RdAk6qk)

## Links


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