example.js

// will be caught by promise-middleware
function makeASandwichWithSecretSauce(name) {
  return {
    types: [],
    payload: fetch(...)
  }
};

// This is complex one
// BTW, you don't have redux-thunk
// our injectDependencies middleware does that anyway
// because steida wanted it! Check it out
function makeSandwichesForEverybody() {
  return ({dispatch, getState}) => {
    if (!getState().sandwiches.isShopOpen) {
      // You don’t have to return Promises, but it’s a handy convention
      // so the caller can always call .then() on async dispatch result.
      return Promise.resolve();
    }
    return dispatch(
      makeASandwichWithSecretSauce('My Grandma')
    ).then(() =>
      Promise.all([
        dispatch(makeASandwichWithSecretSauce('Me')),
        dispatch(makeASandwichWithSecretSauce('My wife'))
      ])
    ).then(() =>
      dispatch(makeASandwichWithSecretSauce('Our kids'))
    ).then(() =>
      dispatch(getState().myMoney > 42 ?
        withdrawMoney(42) :
        apologize('Me', 'The Sandwich Shop')
      )
    );
  };