import { buildClient } from '@datocms/cma-client-node';
async function run() {
  const client = buildClient({ apiToken: '<YOUR_API_TOKEN>' });
  
  const webhookId = '312';
  
  const webhook = await client.webhooks.update(webhookId, {
    name: 'Item type creation/update',
    url: 'https://www.example.com/webhook',
    custom_payload: '{ message: 'Successfully published record!' }',
    headers: {
      'X-Foo': 'Bar'
    },
    events: [
      {
        entity_type: 'item_type',
        event_types: [
          'update',
          'create'
        ],
        filter: {
          entity_type: 'item_type',
          entity_ids: [
            '42',
            '43'
          ]
        }
      }
    ],
    http_basic_user: 'user',
    http_basic_password: 'password',
    enabled: true,
    payload_api_version: '3',
    nested_items_in_payload: true
  });
  
  console.log(webhook);
}
run();

{
  id: '312',
  name: 'Item type creation/update',
  enabled: true,
  url: 'https://www.example.com/webhook',
  custom_payload: '{ message: 'Successfully published record!' }',
  http_basic_user: 'user',
  http_basic_password: 'password',
  headers: {
    'X-Foo': 'Bar'
  },
  events: [
    {
      entity_type: 'item_type',
      event_types: [
        'update',
        'create'
      ],
      filter: {
        entity_type: 'item_type',
        entity_ids: [
          '42',
          '43'
        ]
      }
    }
  ],
  payload_api_version: '3',
  nested_items_in_payload: true
}