ruddy/es/middleware/effects.js

Modularized state-management tools for modern front-end applications. Manage dispatched messages in a clean and predictable way for either small or large scale projects

import _default from 'ramda/src/curry';

import { isPromise, isAction } from '../util/is';

export var resultHandler = _default(function (dispatch, action, result) {
  if (isAction(result) && action.type !== result.type) {
    dispatch(result);
  }
});

export default _default(function (logger, effects, dispatch, action) {
  var handleResult = resultHandler(dispatch, action);
  effects.forEach(function (effect) {
    var result = effect(action);
    if (isPromise(result)) {
      result.then(handleResult);
    } else {
      handleResult(result);
    }
  });
  return action;
});