Do Fullstack KMM projects with web+ jvm backend support hot reloading the Kotlin/JS code?

# multiplatform

[Fudge]

Do Fullstack KMM projects with web+ jvm backend support hot reloading the Kotlin/JS code?

[Big Chungus]

@Robert Jaros had that working with kvision and legacy backend. Not sure if it's possible yet with ir.

[Robert Jaros]

Yes, it is. You have to run two different gradle tasks in two consoles. One is running standard Kotlin/JS webpack dev server and the other is running your backend server. You need to configure webpack to proxy backend calls.

[Robert Jaros]

Check: https://kvision.gitbook.io/kvision-guide/6.-full-stack-development-guide/setting-up-1#development

[Big Chungus]

Oh, I thought OP meant hot reload without browser refresh

[Robert Jaros]

It's also possible.

[Big Chungus]

I'd be a lot more interested in how to do that with ir 😀

[Robert Jaros]

With webpack configuration: https://github.com/rjaros/kvision-examples/blob/master/template-fullstack-ktor-koin/webpack.config.d/webpack.js#L5

[Big Chungus]

Is that all that's needed? How do you preserve state?

[Robert Jaros]

And some Kotlin code:
https://github.com/rjaros/kvision/blob/master/src/main/kotlin/io/kvision/Application.kt#L75-L106

[Big Chungus]

Awesome, thanks

[Robert Jaros]

This is in fact the same old code from the deprecated kotlin-frontend-plugin example project: https://github.com/Kotlin/kotlin-frontend-plugin/tree/master/examples/frontend-only/src/main/kotlin/test/hello

[Robert Jaros]

It's not documented anywhere in the current docs but still works.