How to configure OAuth2RestTemplate

[Laedislaw]

Updated

I am not sure if I have OAuth2RestTemplate configured correctly.

Error:

INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1df3248: defining beans [propertyConfigurer,dataSource,transactionManager,org.springframework.aop.config.internalAutoProxyCreator,org.springframework.transaction.annotation.AnnotationTransactionAttributeSource#0,org.springframework.transaction.interceptor.TransactionInterceptor#0,org.springframework.transaction.config.internalTransactionAdvisor,emf,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,accountRepository,questionRepository,org.springframework.data.repository.core.support.RepositoryInterfaceAwareBeanPostProcessor#0,org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0,org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor#0,jpaQuestionService,jpaAccountService,passwordEncoder,accountHelper,tradeConfig,org.springframework.data.repository.core.support.RepositoryInterfaceAwareBeanPostProcessor#1,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor,baseOAuth2ProtectedResourceDetails,oAuth2ProtectedResourceDetails,accessTokenRequest,oAuth2ClientContext,oAuth2RestTemplate]; root of factory hierarchy
Exception in thread "main" error="access_denied", error_description="Unable to obtain a new access token for resource 'null'. The provider manager is not configured to support it."
	at org.springframework.security.oauth2.client.token.AccessTokenProviderChain.obtainNewAccessTokenInternal(AccessTokenProviderChain.java:146)
	at org.springframework.security.oauth2.client.token.AccessTokenProviderChain.obtainAccessToken(AccessTokenProviderChain.java:118)
	at org.springframework.security.oauth2.client.OAuth2RestTemplate.acquireAccessToken(OAuth2RestTemplate.java:216)
	at org.springframework.security.oauth2.client.OAuth2RestTemplate.getAccessToken(OAuth2RestTemplate.java:168)
	at org.springframework.security.oauth2.client.OAuth2RestTemplate.createRequest(OAuth2RestTemplate.java:89)
	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:442)
	at org.springframework.security.oauth2.client.OAuth2RestTemplate.doExecute(OAuth2RestTemplate.java:123)
	at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:409)
	at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:385)
	at com.Tester.main(TraderTester.java:44)

Can somebody take a look and give some feedback?

    @Configuration
public class AppConfig {

        //@Scope(value="singleton", proxyMode=ScopedProxyMode.INTERFACES) <-- Why do I get an error if I uncomment this line?
        @Bean
        public BaseOAuth2ProtectedResourceDetails baseOAuth2ProtectedResourceDetails(){
                BaseOAuth2ProtectedResourceDetails baseOAuth2ProtectedResourceDetails =  new BaseOAuth2ProtectedResourceDetails();
                baseOAuth2ProtectedResourceDetails.setClientId(clientId);
                baseOAuth2ProtectedResourceDetails.setClientSecret(clientSecret);
                return baseOAuth2ProtectedResourceDetails;
        }

       	@Bean
	public DefaultAccessTokenRequest accessTokenRequest(){
		return new DefaultAccessTokenRequest();
	}
	
	@Bean
	public OAuth2ClientContext oAuth2ClientContext(){
		return new DefaultOAuth2ClientContext(accessTokenRequest());
	}
	
	@Bean
	public OAuth2RestTemplate oAuth2RestTemplate(){
		OAuth2RestTemplate restTemplate = new OAuth2RestTemplate(baseOAuth2ProtectedResourceDetails(),oAuth2ClientContext());
		return restTemplate;
	}
}}

Tester Class


public static void main(String[] args) {

                GenericXmlApplicationContext ctx = new GenericXmlApplicationContext();
                ctx.load("classpath*:jpa-app-context.xml");
                ctx.refresh();

        EntityManagerFactory emf = (EntityManagerFactory) ctx.getBean("emf");
        EntityManager em = emf.createEntityManager();
        TransactionSynchronizationManager.bindResource(emf , new EntityManagerHolder(em));
OAuth2RestTemplate oAuth2RestTemplate = (OAuth2RestTemplate) ctx.getBean("oAuth2RestTemplate");
     String uri="https://api..";
        Object obj = oAuth2RestTemplate.exchange(uri, HttpMethod.POST, null, Object.class);
        System.out.println("Tester Object: "+ obj.toString());


}
}