[TheAceOfHearts]

You can use a plugin like assets-webpack-plugin [0] to get a JSON file that maps to the compiled file names. That's basically the same thing asset pipeline would do.

Here's a blog post [1] explaining how to use webpack with rails.

[0] https://github.com/kossnocorp/assets-webpack-plugin

[1] http://clarkdave.net/2015/01/how-to-use-webpack-with-rails/#...