appwrite/docs/examples/1.8.x/console-web/examples/databases/create-email-attribute.md

import { Client, Databases } from "@appwrite.io/console";

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

const databases = new Databases(client);

const result = await databases.createEmailAttribute({
    databaseId: '<DATABASE_ID>',
    collectionId: '<COLLECTION_ID>',
    key: '',
    required: false,
    default: 'email@example.com', // optional
    array: false // optional
});

console.log(result);