rest - How to configure Spring HATEOAS behind proxy?

Question

I have Spring Data Rest with Hateoas as my backed. It is behind a proxy.

Backend url: backend.com

Proxy url: proxy.com

When I query proxy url, e.g. http://proxy.com/items/1, I get a response with href links with domain backend.com. I need the domain to be proxy.com.

Answer 1

As of Spring-Boot 2.1 / Spring 5.1, Spring shifts the responsibility of handling X-Forwarded-* from Spring HATEOAS to Spring MVC.

https://jira.spring.io/browse/SPR-16668

You now require the registration of a filter bean.

Minimal implementation:

@Bean
FilterRegistrationBean<ForwardedHeaderFilter> forwardedHeaderFilter()
{
    FilterRegistrationBean<ForwardedHeaderFilter> bean = new FilterRegistrationBean<>();
    bean.setFilter(new ForwardedHeaderFilter());
    return bean;
}