status_pages_status_based.kt

install(StatusPages) {

    exception<Throwable> { ... }
    
    status(
        // any number of status codes can be mentioned
        HttpStatusCode.InternalServerError,
        HttpStatusCode.BadGateway,
    ) { call, statusCode ->
        when(statusCode) {
            HttpStatusCode.InternalServerError -> {
                call.respond(
                    HttpStatusCode.InternalServerError,
                    ExceptionResponse("Oops! internal server error at our end", HttpStatusCode.InternalServerError.value)
                )
            }
            HttpStatusCode.BadGateway -> {
                call.respond(
                    HttpStatusCode.BadGateway,
                    ExceptionResponse("Oops! We got a bad gateway. Fixing it. Hold on!", HttpStatusCode.BadGateway.value)
                )
            }
        }
    }
        
}