import ModerationAPI from '@moderation-api/sdk';

const client = new ModerationAPI({
  secretKey: process.env['MODAPI_SECRET_KEY'], // This is the default and can be omitted
});

const response = await client.wordlist.words.add('id', { words: ['string'] });

console.log(response.addedCount);

{
  "addedCount": 123,
  "totalCount": 123,
  "addedWords": [
    "<string>"
  ]
}