feature request: parallels

[willin]

a bit like fxIf, pass in a list(array) of actions.

export const runOneByOne = () => state => parallels([
  action('set', {loading: true}),
  // async action like http
  action('makeRequest'),
  // sync action like set
  action('handleResponse'),
  // data filter
  action('updateState'),
  action('set', {loading: false})
]);

each one should be fired after previous one done.

[okwolf]

@willin action fx don't really have a concept of being "done". Some other fx do take an action parameter to act as a callback after some side effect (timer/network request/etc) is completed.

If you just want to call each of those actions, return an array of them. Your makeRequest action would be responsible for chaining the call to handleResponse that could update the state and set your loading to false:

const actions = {
  set: state => state,
  makeRequest: () => [
    action("set", { loading: true }),
    http("https://...", "handleResponse")
  ],
  handleResponse: data => action("set", { loading: false, data })
}

[okwolf]

@willin do you still want to request a new feature, or will my suggestion work for you?