const SiteClient = require('datocms-client').SiteClient;
const client = new SiteClient('YOUR-API-TOKEN');
client.workflows.all()
.then((workflows) => {
    workflows.forEach((workflow) => {
      console.log(workflow);
    });
  })
.catch((error) => {
  console.error(error);
});

> node example.js
{
  "id": "approval_by_editors",
  "name": "Approval by editors required",
  "stages": [
    {
      "id": "waiting_for_review",
      "name": "Waiting for review",
      "initial": true
    }
  ]
}