ClientHttpRequestInterceptor not called in springboot - httprequest

Question

I am trying to add logging to my application using ClientHttpRequestInterceptor.My interceptor is not being called.
Not sure what is going wrong here -
Here is my code -
#Component
#Slf4j
public final class RestTemplateInterceptor implements ClientHttpRequestInterceptor {
protected static final LoggingAspect aspect = new LoggingAspect();
private final RequestContext requestContext;
private boolean logResponseBody = true;
public RestTemplateInterceptor(RequestContext requestContext) {
this.requestContext = requestContext;
}
#Override
public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution clientHttpRequestExecution) throws IOException {
populateHeader(request);
traceRequest(request, body);
ClientHttpResponse response = clientHttpRequestExecution.execute(request,body);
traceResponse(response);
return response;
}
private void populateHeader(HttpRequest request) {
final HttpHeaders headers = request.getHeaders();
// Propagate TAM headers
headers.add("iv-user", requestContext.getUser());
headers.add("MessageId", requestContext.getMessageId());
headers.add("CorrelationId", requestContext.getConversationId());
headers.add("BusinessId", requestContext.getBusinessId());
headers.add("ApplicationName", requestContext.getSourceSystem());
headers.add("iv-groups", requestContext.getGroups());
headers.add("MessageDateTime", requestContext.getSourceTimestamp());
}
...................
Here is my config file
#Configuration
public class RestTemplateConfig {
/**
* initialise restTemplate
*
* #param restTemplateInterceptor autowired in RestTemplateInterceptor
* #return
*/
#Bean
public RestTemplate restTemplate(ClientHttpRequestInterceptor restTemplateInterceptor, ObjectMapper objectMapper) {
RestTemplate restTemplate = new RestTemplate(new BufferingClientHttpRequestFactory(new SimpleClientHttpRequestFactory()));
List<ClientHttpRequestInterceptor> interceptors = restTemplate.getInterceptors();
if (CollectionUtils.isEmpty(interceptors)) {
interceptors = new ArrayList<>();
}
interceptors.add(restTemplateInterceptor);
restTemplate.setInterceptors(interceptors);
return restTemplate;
}
}
Here is my WebMVC file
#Configuration
public class WebMvcConfig implements WebMvcConfigurer {
#Bean
public WebMvcConfigurer webAuthentication() {
return new WebMvcConfigurer() {
#Override
public void addInterceptors(InterceptorRegistry registry) {
//registry.addInterceptor(myInterceptor());
registry.addInterceptor(new MVCLoggingInterceptor()).addPathPatterns("/api/**");
registry.addInterceptor(new WebAuthentication()).addPathPatterns("/api/**/");
}
};
}
}
Here is my application file
#EnableAsync
#EnableScheduling
#SpringBootApplication(exclude = { SecurityAutoConfiguration.class })
public class XManagementApplication {
public static void main(String[] args) {
SpringApplication.run(XManagementApplication.class, args);
}
}
Can anybody tell why my interceptor class is not called when I try to call any API
Any help would be appreciate?

Answer 1

I don't really understand why you want to instantiate your RestTemplateInterceptor as a Bean. Why not simply instantiate your interceptor inside the method RestTemplateConfig.restTemplate() ?
#Configuration
public class RestTemplateConfig {
#Bean
public RestTemplate restTemplate() {
RestTemplate restTemplate = new RestTemplate(new BufferingClientHttpRequestFactory(new SimpleClientHttpRequestFactory()));
List<ClientHttpRequestInterceptor> interceptors = restTemplate.getInterceptors();
if (CollectionUtils.isEmpty(interceptors)) {
interceptors = new ArrayList<>();
}
interceptors.add(new RestTemplateInterceptor());
restTemplate.setInterceptors(interceptors);
return restTemplate;
}
}
Btw, why do you need to pass RequestContext to the constructor of your interceptor ?