Jhipster - How to send Request/Information from Gateway to Microservice - jhipster

Question

I am using Jhipster Microservice Archi which suit better for my need.
I am trying to find a way to send request from Gateway to Microservice, Or at least send some more user information (Phone number, email ...) to microservice. Is there is any way to do that ?
What i wanted to do is basically when an user are just freshly registered, i want to send a request from the gateway to microservice in order to create for example TaxiLocation if the authority of the user is taxi, or create a shop if the user is a Shop manager ...
Thanks for your help.

Answer 1

What you want to do is communication between microservices, so here, the backend of your gateway wants to send request to your other microservice.
Am I correct?
If it's the case, you can read this ticket, it has been discussed:
https://github.com/jhipster/generator-jhipster/issues/3649
You have this tutorial too, by Xetys, from JHipster team:
http://stytex.de/blog/2016/03/25/jhipster3-microservice-tutorial/
And, you have a specific module which can do the job too, made by Christophe, from JHipster team too:
https://github.com/cbornet/generator-jhipster-swagger-cli
Hope, it will help you.

Answer 2

Thanks for your help, i finally figured it out :
1 - Create a Feign Config with a RequestInterceptor so then request will be authentificate
public class FeignConfig {
#Inject
private JHipsterProperties properties;
#Bean
public RequestInterceptor requestTokenBearerInterceptor() {
return requestTemplate -> {
String token = Jwts.builder().
setSubject("xxx")
.claim("auth", "xxx")
.signWith(SignatureAlgorithm.HS512, properties.getSecurity().getAuthentication().getJwt().getSecret())
.compact();
requestTemplate.header("Authorization", "Bearer " + token);
};
}
}
2- Create MicroserviceClient & MicroserviceClientFallback
#FeignClient(name = "xxxxxxxx", fallback = MicroserviceClientFallback.class, configuration = FeignConfig.class)
public interface MicroserviceClient {
#RequestMapping(value = "/api/createuser",
method = RequestMethod.POST,
produces = MediaType.APPLICATION_JSON_VALUE)
UserInfo createUser(UserInfo user);
}
#Component
public class MicroserviceClientFallback implements MicroserviceClient {
private final Logger log = LoggerFactory.getLogger(MicroserviceClientFallback.class);
#Override
public UserInfo createUser(UserInfo user) {
log.warn("Triggered fallback for createUser : {}", user);
return null;
}
}
3 - Finally Call it from a rest controller
#Inject
private MicroserviceClient microserviceClient;
...
microserviceClient.createUser(userInfo);