appwrite/docs/examples/account/update-prefs.md

Appwrite is an open-source self-hosted backend server that abstracts and simplifies complex and repetitive development tasks behind a very simple REST API

```javascript
import { Client, Account } from "appwrite";

const client = new Client()
    .setEndpoint('https://<REGION>.cloud.appwrite.io/v1') // Your API Endpoint
    .setProject('<YOUR_PROJECT_ID>'); // Your project ID

const account = new Account(client);

const result = await account.updatePrefs({
    prefs: {
        "language": "en",
        "timezone": "UTC",
        "darkTheme": true
    }
});

console.log(result);
```