---
title: Create & Update Carousels with Embed SDK
description: Discover how to create and update engaging carousels using PostNitro's Embed SDK, directly from your web application.
canonical: https://postnitro.ai/docs/embed/sdk/creating-updating-carousels
---

# Create a new carousel

To create a new carousel, call the `createDesign` method and provide a callback function to handle the export data:
```typescript
editor?.createDesign((data: ExportData) => {
    console.log(data);
    // You can perform additional operations with the data, such as saving or displaying the carousel
});
```

## Edit an existing carousel
To edit an existing carousel, call the `editDesign` method and provide the carousel ID and a callback function to handle the export data:
```typescript
editor?.editDesign('your-carousel-id', (data: ExportData) => {
    console.log(data);
    // You can perform additional operations with the data, such as updating the existing carousel
});
```

Replace `your-carousel-id` with the actual ID of the carousel you want to edit.


## Understanding the ExportData type
The callback function receives an ExportData object, which contains the following properties:

```typescript
interface ExportData {
    id: string;           // Unique identifier for the content
    name: string;         // User-defined content name
    size: string;         // Aspect ratio (e.g., "16:9", "1:1", "9:16")
    type: string;         // Export format: "pdf", "png", or "mp4"
    data: Blob | Blob[];  // File data - single Blob for PDF/MP4, Blob array for PNG
}
```

You can use the provided data to save, display, or perform any other operations with the carousel.