DIY async-await with generators and promises

asyncy-awaiter.js

const request = asyncy('https://jsonplaceholder.typicode.com/todos')

awaiter()
  .then(awaiter)
  .then(console.log)

function awaiter(item) {
  return request.next(item).value
}

function* asyncy(url) {
  const data = yield fetch(url);
  yield data.json();
}