RailsConf 2020 -- Webpacker, It-Just-Works, But How?

railsfavoritesMay 05, 2020Dotby Justin Gordon

From RailsConf 2020


How does the Webpacker gem provide "it-just-works" webpack integration with Rails? That simplicity did not come easily. The rich functionality, complexity, and rapid evolution of the webpack ecosystem necessitated extension points beyond a simple Ruby config file.

Yet you need to know almost nothing about webpack to leverage the modern JavaScript ecosystem. But what if you want to extend the standard configuration? What information might help you upgrade webpack and webpacker in the future?

This talk will explain the magical plumbing of Webpacker so you can leverage the webpack ecosystem on your terms.


  1. Slides
  2. github.com/rails/webpacker
  3. github.com/shakacode/react_on_rails

Closing Remark

Could your team use some help with topics like this and others covered by ShakaCode's blog and open source? We specialize in optimizing Rails applications, especially those with advanced JavaScript frontends, like React. We can also help you optimize your CI processes with lower costs and faster, more reliable tests. Scraping web data and lowering infrastructure costs are two other areas of specialization. Feel free to reach out to ShakaCode's CEO, Justin Gordon, at [email protected] or schedule an appointment to discuss how ShakaCode can help your project!
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