const SiteClient = require('datocms-client').SiteClient;
const client = new SiteClient('YOUR-API-TOKEN');
const uploadFilterId = '34';
client.uploadFilter.update(uploadFilterId, {
  name: 'Draft posts',
  shared: true,
  filter: {
    status: {
      eq: 'draft'
    }
  }
})
.then((uploadFilter) => {
  console.log(uploadFilter);
})
.catch((error) => {
  console.error(error);
});

> node example.js
{
  "id": "34",
  "name": "Draft posts",
  "filter": {
    "status": {
      "eq": "draft"
    }
  },
  "shared": true
}