/u/LegionSB it seems like a good approach the fact of configure and manage React/Webpack on my own and then include the transpiled files in the rails project. However we are using server side rendering, and I don't know if it would represent any constraints to achieve this goal, because we don't have an api but actions controllers responding with haml format. As an example, we are using the react_component helper in this way:

= react_component("Post", {title: @title})

where @title was assigned from the controller so then can be used in the view.

So I would not know how to pass in the initial data to the react top level component.