kobweb-core/com.varabyte.kobweb.navigation/Router/setErrorHandler

setErrorHandler

fun setErrorHandler(errorPageMethod: ErrorPageMethod)(source)

Set a handler to call to render a page when the route is not found.

Using this in your project would look like this:

@InitKobweb
fun initKobweb(ctx: InitKobwebContext) {
  ctx.router.setErrorHandler { errorCode ->
    // NOTE: This callback is a @Composable function
    if (errorCode == 404) {
      // Render a 404 page
    }
  }
}