duck without actions.js

const ACTION = 'my-app/widgets/ACTION';

export default function reducer(state = {}, action = {}) {
  switch (action.type) {
    case ACTION:
      return action.reduce(state)
    default: 
      return state;
  }
}

export function loadWidgets() {
  return { type: ACTION, reduce: state => /* reduce stuff */ };
}

export function createWidget(widget) {
  return { type: ACTION, reduce: state => /* reduce stuff */ };
}

export function updateWidget(widget) {
  return { type: ACTION, reduce: state => /* reduce stuff */ };
}

export function removeWidget(widget) {
  return { type: ACTION, reduce: state => /* reduce stuff */ };
}

Based on https://github.com/erikras/ducks-modular-redux