promises-example.js

const makeRequest = () => {
  return getJSON()
    .then(data => handleResult(data))
}

const handleResult = (data) => {
  return data.needsAnotherRequest
    ? handleIncompleteResult(data)
    : handleCompleteResult(data);
}

const handleIncompleteResult = (data) => {
  return makeAnotherRequest(data)
    .then(moreData => {
      console.log(moreData)
      return moreData
    });
}

const handleCompleteResult = (data) => {
  console.log(data)
  return data;
}