Question 1

How do I set up Reaxt with an existing Phoenix app?

Accepted Answer

Integrate Reaxt by adding it to mix.exs, configuring Webpack with a webpack.config.js, and using WebPack.Plug.Static for development. Refer to the reaxt-example repository for a complete setup guide and ensure you serve compiled files correctly.

Question 2

Reaxt or Next.js for Elixir projects?

Accepted Answer

Reaxt is specifically designed for Elixir, offering deep integration and isomorphic rendering within Elixir apps, while Next.js is Node.js-based. Choose Reaxt if you're committed to Elixir; otherwise, consider other isomorphic frameworks that might have broader ecosystems.

Question 3

How to handle routing in Reaxt with React Router?

Accepted Answer

Use dynamic handlers like reaxt_server_render and reaxt_client_render to customize rendering for React Router. The README provides an example where Router.run is integrated to manage server and client-side routing seamlessly.

Question 4

Does Reaxt support TypeScript?

Accepted Answer

Yes, Reaxt supports any JavaScript compiled language via Webpack, so you can configure TypeScript in your webpack.config.js. The library imposes minimal constraints, allowing flexibility in your JS toolchain.

Question 5

How to debug JavaScript errors in Reaxt?

Accepted Answer

JavaScript exceptions are converted to Elixir stack traces, visible in tools like Plug.Debugger. This combined stack trace feature simplifies debugging by showing JS errors within the Elixir environment.

Question 6

What are the performance implications of the Node.js pool?

Accepted Answer

The configurable renderer pool enables multi-core rendering for scalability, but it adds overhead in managing Node.js processes. Adjust pool_size and max_overflow based on load, as suggested in the perfs configuration section.

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