attadux/es/middleware/multipliers.js

Implementation of the redux-modular-ducks, forked from the extensible-duck implementation and extended to include spected validators, state machines, helpers, web workers, effect handling, action multipliers, action enhancers, action throttling/debouncing

import _default3 from 'ramda/src/unnest';
import _default2 from 'ramda/src/is';
import _default from 'ramda/src/curry';

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

export default _default(function (logger, multipliers, dispatch, action) {
    multipliers.filter(function (multiplierMap) {
        return multiplierMap[action.type];
    }).forEach(function (multiplierMap) {
        try {
            var fanout = multiplierMap[action.type];
            var nextActions = fanout(action);
            if (_default2(Array, nextActions)) {
                _default3(nextActions).filter(function (na) {
                    return isAction(na) && na.type !== action.type;
                }).forEach(function (nextAction) {
                    try {
                        dispatch(nextAction);
                    } catch (err) {
                        logger.error('Unable to dispatch action: "' + nextAction.type + '", multiplied from "' + action.type + '"', err);
                    }
                });
            }
        } catch (error) {
            logger.error('Unable to multiply action: "' + action.type + '"', error);
        }
    });
    return action;
});