Spring @FeignClient with OAuth2FeignRequestInterceptor not working

Question

I am trying to install FeignClient using OAuth2 to implement a Relay Token. I just want FeignClient to transfer / distribute the OAuth2 token that comes from ZuulProxy (SSO Enabled). I am using Spring 1.3.1-RELEASE and Spring Cloud Brixton.M4 .

I added an interceptor to the @FeignClient user configuration:

import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.security.oauth2.client.feign.OAuth2FeignRequestInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.oauth2.client.OAuth2ClientContext;
import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeResourceDetails;

import feign.RequestInterceptor;

@Configuration
public class FeignClientConfiguration {

@Value("${security.oauth2.client.userAuthorizationUri}")
private String authorizeUrl;

@Value("${security.oauth2.client.accessTokenUri}")
private String tokenUrl;

@Value("${security.oauth2.client.client-id}")
private String clientId;


// See https://github.com/spring-cloud/spring-cloud-netflix/issues/675
@Bean
public RequestInterceptor oauth2FeignRequestInterceptor(OAuth2ClientContext oauth2ClientContext){
    return new OAuth2FeignRequestInterceptor(oauth2ClientContext, resource());
}

@Bean
protected OAuth2ProtectedResourceDetails resource() {
    AuthorizationCodeResourceDetails resource = new AuthorizationCodeResourceDetails();
    resource.setAccessTokenUri(tokenUrl);
    resource.setUserAuthorizationUri(authorizeUrl);
    resource.setClientId(clientId);
    // TODO: Remove this harcode 
    resource.setClientSecret("secret");
    return resource;
}   
}

And I add the configuration to my @FeignClient as follows:

@FeignClient(name = "car-service", configuration =     FeignClientConfiguration.class)
interface CarClient {               
    @RequestMapping(value = "car-service/api/car", method = GET)
    List<CarVO> getAllCars();
}   

The application starts, but when I use the Feign client from my service, I get:

2016-01-08 13:14:29.757 ERROR 3308 --- [nio-9081-exec-1] o.a.c.c.C.[.[.[.    [dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in 

    context with path [/user-service] threw exception [Request processing failed; nested exception is com.netflix.hystrix.exception.HystrixRuntimeException: getAllCars failed and no fallback available.] with root cause

    java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.web.context.request.AbstractRequestAttributesScope.get(AbstractRequestAttributesScope.java:41) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:340) ~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]

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Answer 1

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Answer 2

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. https://jfconavarrete.wordpress.com/2014/09/15/make-spring-security-context-available-inside-a-hystrix-command/

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@Bean
public RequestInterceptor requestTokenBearerInterceptor() {

    return new RequestInterceptor() {
        @Override
        public void apply(RequestTemplate requestTemplate) {
            Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
            OAuth2AuthenticationDetails details = (OAuth2AuthenticationDetails) authentication.getDetails();
            requestTemplate.header("Authorization", "Bearer " + details.getTokenValue());                   
        }
    };
}

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