rehydrateState.js

import routerResolve from 'router5/transition/resolve';
import { withStore } from './middleware';

export function rehydrateState(router, state) {
    const middlewares = [withStore].map(item => item(router, router.getDependencies()));

    return new Promise((resolve, reject) => {
        routerResolve(
            middlewares,
            {
                isCancelled: () => false,
                toState: state,
                fromState: null,
            },
            (err, state) => {
                if (!err) {
                    resolve(state);
                } else {
                    reject(err);
                }
            },
        );
    });
}