My simple solution. IMHO it's the cleanest.
First create a application.yml
spring.main.allow-bean-definition-overriding: true
security:
oauth2:
client:
clientId: XXX
clientSecret: XXX
accessTokenUri: XXX
tokenName: access_token
grant-type: client_credentials
Create the main class: Main
@SpringBootApplication
@EnableOAuth2Client
public class Main extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/").permitAll();
}
public static void main(String[] args) {
SpringApplication.run(Main.class, args);
}
@Bean
public OAuth2RestTemplate oauth2RestTemplate(ClientCredentialsResourceDetails details) {
return new OAuth2RestTemplate(details);
}
}
Then Create the controller class: Controller
@RestController
class OfferController {
@Autowired
private OAuth2RestOperations restOperations;
@RequestMapping(value = "/<your url>"
, method = RequestMethod.GET
, produces = "application/json")
public String foo() {
ResponseEntity<String> responseEntity = restOperations.getForEntity(<the url you want to call on the server>, String.class);
return responseEntity.getBody();
}
}
Maven dependencies
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.5.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security.oauth.boot</groupId>
<artifactId>spring-security-oauth2-autoconfigure</artifactId>
<version>2.1.5.RELEASE</version>
</dependency>
</dependencies>