Unrecognized field "_links" since the 2.0.0.RC1 of Spring Data REST - spring-data-rest

Question

On one side, I have just update the version of spring-data-rest-webmc to the latest 2.0.0.RC1 version of my server. In this version, the json format change to an HAL format.
On the other side, I have a client which use the spring-hateoas library with the 0.9.0.RELEASE version.
In this client, I use RestTemplate to get a resource from my server like this :
AuthorResource authorResource = restTemplate.getForObject(BASE_URL+"authors/"+ authorId, AuthorResource.class);
The AuthorResource class extends ResourceSupport.
Now, I have this error :
Nested exception is com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "_links" (class org.example.hateoas.AuthorResource)
How can i configure my client to support this new format ?
I try
#EnableHypermediaSupport(type =
EnableHypermediaSupport.HypermediaType.HAL)
But it does not work.
thx for your help.

Answer 1

Problem is that halMapperObject is not setted because of context is not spring web.
You have to create your own RestTemplate class like this
#Component
public class EraRestTemplate extends RestTemplate implements InitializingBean {
#Autowired
#Qualifier("_halObjectMapper")
ObjectMapper halObjectMapper;
static class HALMessageConverter extends MappingJackson2HttpMessageConverter {
}
#Override
public void afterPropertiesSet() throws Exception {
halObjectMapper.registerModule(new Jackson2HalModule());
HALMessageConverter converter = new HALMessageConverter();
converter.setObjectMapper(halObjectMapper);
this.getMessageConverters().clear();
this.getMessageConverters().add(converter);
}
}
It works fine now for me thanks a friend who knows Spring very well.