updux/dist/effects.js

32 lines
1.3 KiB
JavaScript

import { augmentGetState } from './createStore.js';
export function buildEffects(localEffects, subduxes = {}) {
return [
...localEffects,
...Object.entries(subduxes).flatMap(([slice, { effects, actions, selectors }]) => {
if (!effects)
return [];
return effects.map((effect) => (api) => effect(augmentMiddlewareApi(Object.assign(Object.assign({}, api), { getState: () => api.getState()[slice] }), actions, selectors)));
}),
];
}
export function buildEffectsMiddleware(effects = [], actions = {}, selectors = {}) {
return (api) => {
const newApi = augmentMiddlewareApi(api, actions, selectors);
let mws = effects.map((e) => e(newApi));
return (originalNext) => {
return mws.reduceRight((next, mw) => mw(next), originalNext);
};
};
}
export const augmentMiddlewareApi = (api, actions, selectors) => {
return Object.assign(Object.assign({}, api), { getState: augmentGetState(api.getState, selectors), dispatch: augmentDispatch(api.dispatch, actions), actions,
selectors });
};
const augmentDispatch = (originalDispatch, actions) => {
const dispatch = (action) => originalDispatch(action);
for (const a in actions) {
dispatch[a] = (...args) => dispatch(actions[a](...args));
}
return dispatch;
};