eunomia-controller/source/react/routes/index.js

// Boilerplate reduction for dynamic routes

const errorLoading = (err) => console.error('Dynamic page loading failed', err)

const loadModule = (cb) => (componentModule) => cb(null, componentModule.default)

const injectAndRender = (injectReducer, reducer, injectSagas, sagas, renderRoute, component) => {
  injectReducer('home', reducer.default);
  injectSagas(sagas.default);
  renderRoute(component);
}

const createRoutes = (store, routes, getAsyncInjectors, createReducer) => {
  const { injectReducer, injectSagas } = getAsyncInjectors(store, createReducer);
  return routes.map(item => {
    let result = {
      path: item.path,
      name: item.name
    }
    if (typeof item.component.length !== 'undefined') {
      Object.assign(result, {
        getComponent(nextState, cb) {
          const renderRoute = loadModule(cb);
          Promise.all(item.component).then(([reducer, sagas, component]) => injectAndRender(injectReducer, reducer, injectSagas, sagas, renderRoute, component)).catch(errorLoading);
        }
      })
    }
    else {
      Object.assign(result, {
        getComponent(nextState, cb) {
          item.component.then(loadModule(cb)).catch(errorLoading)
        }
      })
    }
    return result
  })
}

module.exports = ({
  errorLoading: errorLoading,
  loadModule: loadModule,
  injectAndRender: injectAndRender,
  createRoutes: createRoutes
})