protected HttpResponse doDelete(ServiceRequestContext ctx, HttpRequest req) throws Exception {
        return HttpResponse.of(HttpStatus.METHOD_NOT_ALLOWED);
    }
Handles a {@link HttpMethod#DELETE DELETE} request.
This method sends a {@link HttpStatus#METHOD_NOT_ALLOWED 405 Method Not Allowed} response by default.
core/src/main/java/com/linecorp/armeria/server/AbstractHttpService.java