StaticResourceConfiguration.kt

@Configuration
class StaticResourceConfiguration(
  val reactOptions: ReactOptions,
  val webProperties: WebProperties
) : WebMvcConfigurerAdapter() {

  override fun addResourceHandlers(registry: ResourceHandlerRegistry) {

    val staticPaths = arrayOf(
      "classpath:/static/",
      reactOptions.staticBundleLocation
    )

    val resources = registry
      .addResourceHandler("/**")
      .addResourceLocations(*staticPaths)
      .setCachePeriod(webProperties.cachePeriod)

    if (webProperties.generateContentHash) {
      val versionResolver = VersionResourceResolver()
      versionResolver.addContentVersionStrategy("/**")
      resources
        .resourceChain(true)
        .addResolver(versionResolver)
    }
  }
}