thunkServerNeeds.js

function requestContextData(store = {}, { components = [] }) {
	const promises = components.reduce((prev, current = {}) => {
		return (current.need || []).concat(prev);
	}, []).map((need) => store.dispatch(need()));

	return Promise.all(promises);
}

// ...

requestContextData(store, props).then(() => {
	const state = store.getState();
	const html = renderToString(rootComponent);

	// ...
});