如何在Spring Boot Webflux中克隆ServerResponse

Question

I am using Spring Boot 2.0.1.RELEASE and functional endpoint for my REST web app. I want to add a custom header to all outgoing response, for which I have a filter. The problem I am facing is, how to clone the ServerResponse that's created by underneath handlers. ServerResponse.from builds a new ServerResponse , but only with headers and statuses. How can I copy the body?

Answer 1

Most of the methods in the ServerResponse provide you with a BodyBuilder and with the bodyBuilder you can add your body using a BodyInserters object and hopefully one of its methods. See below: -

ServerResponse.BodyBuilder bodyBuilder = ServerResponse.status(HttpStatus.OK);
bodyBuilder.body(BodyInserters.fromObject("test"));