pages_controller.rb

class PagesController < ApplicationController
  include ReactOnRails::Controller

  before_action do
    session[:something_useful] = "REALLY USEFUL"
  end

  before_action :data

  before_action :initialize_shared_store, only: [:client_side_hello_world_shared_store_controller,
                                                 :server_side_hello_world_shared_store_controller]

  rescue_from ReactOnRails::PrerenderError do |err|
    Rails.logger.error(err.message)
    Rails.logger.error(err.backtrace.join("\n"))
    redirect_to client_side_hello_world_path,
                flash: { error: "Error prerendering in react_on_rails. See server logs." }
  end

  # See files in spec/dummy/app/views/pages

  private

  def initialize_shared_store
    redux_store("SharedReduxStore", props: @app_props_server_render)
  end

  def data
    # This is the props used by the React component.
    @app_props_server_render = {
      helloWorldData: {
        name: "Mr. Server Side Rendering"
      }
    }

    @app_props_hello = {
      helloWorldData: {
        name: "Mrs. Client Side Rendering"
      }
    }

    @app_props_hello_again = {
      helloWorldData: {
        name: "Mrs. Client Side Hello Again"
      }
    }
  end
end