An example for react-sinatra
bundle install
cd client && npm install
cd client && npm run build && npm run build-server
and copy from dist
to public
cp dist/bundle.js ../public/
bundle exec ruby app.rb
bundle install
cd client && npm install
cd client && npm run build && npm run build-server
and copy from dist
to public
cp dist/bundle.js ../public/
bundle exec ruby app.rb