import { buildClient } from '@datocms/cma-client-node';
async function run() {
  const client = buildClient({ apiToken: '<YOUR_API_TOKEN>' });
  
  const uploadRequest = await client.uploadRequest.create({
    filename: 'image.png'
  });
  
  console.log(uploadRequest);
}
run();

{
  id: '/7/1455102967-image.png',
  url: 'https://dato-images.s3-eu-west-1.amazonaws.com/7/1455102967-image.png?X-Amz-Credential=AKIAJDTXTZHHDUCKAUMA%2F20160210'
}