const SiteClient = require('datocms-client').SiteClient;
const client = new SiteClient('YOUR-API-TOKEN');
client.buildTrigger.create({
  name: 'Production',
  webhookToken: 'xA1239ajsk123',
  adapter: 'netlify',
  indexingEnabled: true,
  frontendUrl: 'https://www.mywebsite.com/',
  autotriggerOnScheduledPublications: true,
  adapterSettings: {
    triggerUrl: 'https://api.netlify.com/build_hooks/XXX',
    siteId: 'XXX',
    branch: 'master'
  }
})
.then((buildTrigger) => {
  console.log(buildTrigger);
})
.catch((error) => {
  console.error(error);
});

> node example.js
{
  "id": "1822",
  "name": "Production",
  "adapter": "netlify",
  "adapterSettings": {
    "triggerUrl": "https://api.netlify.com/build_hooks/XXX",
    "siteId": "XXX",
    "branch": "master"
  },
  "lastBuildCompletedAt": "2017-03-30T09:29:14.872Z",
  "buildStatus": "success",
  "webhookToken": "xA1239ajsk123",
  "webhookUrl": "https://webhooks.datocoms.com/xA1239ajsk123/deploy-results",
  "indexingStatus": "success",
  "frontendUrl": "https://www.mywebsite.com/",
  "autotriggerOnScheduledPublications": true,
  "indexingEnabled": true
}