Support for RN web

[rmit-s3804879-sainathreddy-kodiganti]

does metro based rock project support rn web ?

[whydidoo]

@rmit-s3804879-sainathreddy-kodiganti I use rsbuild together with RockJS for web development

[rmit-s3804879-sainathreddy-kodiganti]

@whydidoo thanks for that, have you used repack or metro bundler to begin with

[whydidoo]

@rmit-s3804879-sainathreddy-kodiganti I use Rock + Rspack for the native SDK with a module federation, and for the web I use Rsbuild in the same paradigm.

[rmit-s3804879-sainathreddy-kodiganti]

Thank you

[blazejkustra]

@thymikee @adhorodyski I think it would be great to support web platform the same way as expo does this (with metro). What do you think?

For context: I'm working on migrating webpack to metro in Expensify app and I think adding support in rock would be the easiest way 😄

[thymikee]

This is not something we intend to focus on in the upcoming months. Technically Metro works for web, but AFAIK it doesn't support proper code splitting or tree shaking for production bundles, which makes web apps load a lot of unnecessary JS. Curious if anything changed here?

[blazejkustra]

@thymikee Not sure about code-splitting, but tree shaking is experimentally supported in expo:

https://docs.expo.dev/guides/tree-shaking/#enabling-tree-shaking

[blazejkustra]

Related issues in metro repository:

facebook/metro#1561
facebook/metro#132

[thymikee]

@blazejkustra thanks for linking that! Expo did a fair bit of work to make that happen. I'm also aware of rnx-kit implementing that in their metro resolver. Still no good solution for per-route code splitting, which we'd need to emulate with tree-shaking multiple entry points for example.

I'd be happy to consider an external contribution if it doesn't add too much maintenance burden.

[VaggelisKa]

Does anyone have an example of how this setup would look like? A setup that supports all ios/android/web?