Using Default Assets - SvelteKit

import type { EditorPlugin, EditorPluginContext } from '@cesdk/cesdk-js';
import { DesignEditorConfig } from '@cesdk/core-configs-web/design-editor';
import packageJson from './package.json';

/**
 * CE.SDK Plugin: Using Default Assets Guide
 *
 * Demonstrates loading all asset sources from IMG.LY's CDN using
 * addLocalAssetSourceFromJSONURI and creating a scene with
 * a star shape, sticker, and image.
 */
class Example implements EditorPlugin {
  name = packageJson.name;

  version = packageJson.version;

  async initialize({ cesdk, engine }: EditorPluginContext): Promise<void> {
    if (!cesdk) {
      throw new Error('CE.SDK instance is required for this plugin');
    }

    await cesdk.addPlugin(new DesignEditorConfig());

    // Versioned CDN URLs using the SDK package (recommended)
    // For production, self-host these assets - see the Serve Assets guide
    const PACKAGE_BASE = `https://cdn.img.ly/packages/imgly/cesdk-js/${cesdk.version}/assets`;
    const DEFAULT_ASSETS_URL = `${PACKAGE_BASE}/`;
    const DEMO_ASSETS_URL = `${PACKAGE_BASE}/`;

    // Load default asset sources (core editor components)
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.sticker/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.vector.shape/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.color.palette/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.filter/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.effect/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.blur/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.typeface/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.crop.presets/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEFAULT_ASSETS_URL}ly.img.page.presets/content.json`
    );

    // Load demo asset sources (sample content for testing)
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEMO_ASSETS_URL}ly.img.image/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEMO_ASSETS_URL}ly.img.video/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEMO_ASSETS_URL}ly.img.audio/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEMO_ASSETS_URL}ly.img.templates/content.json`
    );
    await engine.asset.addLocalAssetSourceFromJSONURI(
      `${DEMO_ASSETS_URL}ly.img.text.components/content.json`
    );

    // Update asset library entries to show the loaded sources in the UI
    cesdk.ui.updateAssetLibraryEntry('ly.img.sticker', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.sticker'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.vector.shape', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.vector.shape'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.color.palette', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.color.palette'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.filter', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.filter'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.effect', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.effect'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.blur', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.blur'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.typeface', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.typeface'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.crop.presets', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.crop.presets'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.page.presets', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.page.presets'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.image', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.image'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.video', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.video'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.audio', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.audio'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.templates', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.templates'])
      ]
    });
    cesdk.ui.updateAssetLibraryEntry('ly.img.text.components', {
      sourceIds: ({ currentIds }) => [
        ...new Set([...currentIds, 'ly.img.text.components'])
      ]
    });

    // Create the design scene
    await cesdk.actions.run('scene.create', {
      page: {
        sourceId: 'ly.img.page.presets',
        assetId: 'ly.img.page.presets.print.iso.a6.landscape'
      }
    });

    // Get the page to add content to
    const pages = engine.block.findByType('page');
    const page = pages[0];
    if (page == null) return;

    const pageWidth = engine.block.getWidth(page);
    const pageHeight = engine.block.getHeight(page);

    // Define the three assets to add: star shape, sticker, and image
    const assetsToAdd = [
      {
        sourceId: 'ly.img.vector.shape',
        assetId: '//ly.img.ubq/shapes/star/filled'
      },
      {
        sourceId: 'ly.img.sticker',
        assetId: '//ly.img.cesdk.stickers.emoticons/alien'
      },
      {
        sourceId: 'ly.img.image',
        assetId: 'ly.img.cesdk.images.samples/sample.1'
      }
    ];

    // Calculate layout for 3 centered blocks
    const blockSize = Math.min(pageWidth, pageHeight) * 0.2;
    const spacing = blockSize * 0.3;
    const totalWidth =
      assetsToAdd.length * blockSize + (assetsToAdd.length - 1) * spacing;
    const startX = (pageWidth - totalWidth) / 2;
    const centerY = (pageHeight - blockSize) / 2;

    // Create and position each block
    for (let i = 0; i < assetsToAdd.length; i++) {
      const { sourceId, assetId } = assetsToAdd[i];
      const asset = await engine.asset.fetchAsset(sourceId, assetId);

      if (asset != null) {
        const block = await engine.asset.apply(sourceId, asset);

        if (block != null) {
          engine.block.setWidth(block, blockSize);
          engine.block.setHeight(block, blockSize);
          engine.block.setPositionX(block, startX + i * (blockSize + spacing));
          engine.block.setPositionY(block, centerY);
        }
      }
    }

    // Clear selection for cleaner visual
    for (const block of engine.block.findAllSelected()) {
      engine.block.setSelected(block, false);
    }

    // Open the Elements panel to showcase all loaded asset sources
    cesdk.ui.openPanel('//ly.img.panel/assetLibrary', {
      payload: {
        entries: ['ly.img.image', 'ly.img.vector.shape', 'ly.img.sticker']
      }
    });
  }
}

export default Example;

Load all asset sources from IMG.LY’s CDN to populate your CE.SDK editor with shapes, stickers, filters, effects, fonts, images, and other media using the Asset API.

Using Default Assets example showing the CE.SDK editor with a star shape, sticker, and image centered on the canvas

5 mins

estimated time

Download

StackBlitz

GitHub

CE.SDK provides built-in asset sources for shapes, stickers, filters, effects, fonts, and sample media. This guide demonstrates loading all available asset sources from IMG.LY’s CDN and applying them to create a scene with a star shape, a sticker, and an image.

What Are Default and Demo Assets?#

IMG.LY provides two categories of asset sources hosted on the IMG.LY CDN for development and prototyping:

Default Assets are core editor components:

Source ID	Description
`ly.img.sticker`	Emojis, emoticons, decorations
`ly.img.vector.shape`	Shapes: stars, arrows, polygons
`ly.img.color.palette`	Default color palette
`ly.img.filter`	Color filters (LUT and duotone)
`ly.img.effect`	Visual effects
`ly.img.blur`	Blur effects
`ly.img.typeface`	Font families
`ly.img.crop.presets`	Crop presets
`ly.img.page.presets`	Page size presets

Demo Assets are sample content for development:

Source ID	Description
`ly.img.image`	Sample images
`ly.img.video`	Sample videos
`ly.img.audio`	Sample audio tracks
`ly.img.templates`	Design and video templates
`ly.img.text.components`	Text component presets

Loading Assets from URL#

Use addLocalAssetSourceFromJSONURI() to load an asset source directly from a JSON URL:

const baseURL = `https://cdn.img.ly/packages/imgly/cesdk-js/${cesdk.version}/assets/`;
await engine.asset.addLocalAssetSourceFromJSONURI(
  `${baseURL}ly.img.vector.shape/content.json`
);

Versioned CDN URLs#

Use the SDK version to construct versioned CDN URLs. This ensures assets are compatible with your SDK version. For production deployments, see the Serve Assets guide to self-host assets.

// Versioned CDN URLs using the SDK package (recommended)
// For production, self-host these assets - see the Serve Assets guide
const PACKAGE_BASE = `https://cdn.img.ly/packages/imgly/cesdk-js/${cesdk.version}/assets`;
const DEFAULT_ASSETS_URL = `${PACKAGE_BASE}/`;
const DEMO_ASSETS_URL = `${PACKAGE_BASE}/`;

Loading Default Asset Sources#

Load a default asset source from the CDN. Repeat this pattern for each source you need:

// Load default asset sources (core editor components)
await engine.asset.addLocalAssetSourceFromJSONURI(
  `${DEFAULT_ASSETS_URL}ly.img.sticker/content.json`
);

Loading Demo Asset Sources#

Load a demo asset source from the CDN. Repeat this pattern for each source you need:

// Load demo asset sources (sample content for testing)
await engine.asset.addLocalAssetSourceFromJSONURI(
  `${DEMO_ASSETS_URL}ly.img.image/content.json`
);

Updating the Asset Library#

After loading asset sources, update the asset library entries to display them in the UI. Repeat this pattern for each source:

// Update asset library entries to show the loaded sources in the UI
cesdk.ui.updateAssetLibraryEntry('ly.img.sticker', {
  sourceIds: ({ currentIds }) => [
    ...new Set([...currentIds, 'ly.img.sticker'])
  ]
});

Filtering Assets with Matcher#

Use the matcher option to load only specific assets from a source:

const baseURL = `https://cdn.img.ly/packages/imgly/cesdk-js/${cesdk.version}/assets/`;

// Load only star and arrow shapes
await engine.asset.addLocalAssetSourceFromJSONURI(
  `${baseURL}ly.img.vector.shape/content.json`,
  { matcher: ['*star*', '*arrow*'] }
);

// Load only emoji stickers
await engine.asset.addLocalAssetSourceFromJSONURI(
  `${baseURL}ly.img.sticker/content.json`,
  { matcher: ['*emoji*'] }
);

An asset is included if it matches ANY pattern in the array. Patterns support * wildcards.

API Reference#

Method	Description
`engine.asset.addLocalAssetSourceFromJSONURI(contentURI, options?)`	Load an asset source from a JSON URL

Parameters for addLocalAssetSourceFromJSONURI:

Parameter	Type	Description
`contentURI`	`string`	Full URL to the content.json file
`options.matcher`	`string[]`	Optional wildcard patterns to filter assets

Returns: Promise<string> — The asset source ID from the JSON

Next Steps#

Serve Assets — Self-host assets for production deployments
Customize Asset Library — Configure the asset library UI and entries
Asset Library Basics — Understand asset library structure and concepts
Import From Remote Source — Load assets from external URLs