---
title: Callbacks
lastModified: "2026-10-10T14:59:21+01:00"
lastAuthor: Kaylee
---
```ts title="src/main.ts"
import { hosted, init } from '@c15t/browser';

import { scripts } from './scripts';

export const consent = init({
	callbacks: {
		// Only a visitor's own accept, reject or save.
		onChoiceRecorded: ({ confirmed, snapshot }) => {
			console.info('Visitor confirmed', confirmed, snapshot.explicitChoice);
		},
		onError: ({ error }) => {
			console.warn('Consent request failed:', error);
		},
		// Any change to what may run, including a restored choice.
		onPermissionsChanged: ({ previous, snapshot }) => {
			console.info('Permissions', previous, snapshot.effectivePermissions);
		},
	},
	mode: hosted({ backendURL: 'https://your-project.inth.app' }),
	scripts,
});

// The surface c15t wants shown: 'banner', 'dialog' or 'none'.
consent.on('ui', (surface) => {
	document.documentElement.dataset.consentSurface = surface ?? 'none';
});
```