request.duck.js

{
  on: 'on_request',
  reducer: ({ state, event }) => ({ ...state, loading: { [event.type]: true } }),
  reaction: ({ event }) =>  api(event.path, event.params)
    .then(res) => broadcast('request_success', res)
    .catch(err) => broadcast('request_fail', err)
    .finally() => broadcast('request_resolved', event)
},
{
  on: 'request_resolved',
  reducer: ({ state, event }) => ({ ...state, loading: { [event.type]: false } }),
}