Using FeignClient to get data from external service

Question

I am trying to get data from external service and put the in database.

@FeignClient(value = "name-feign", url = "http://localhost:8081")
public interface Client{

    @PostMapping("/Efforts")
    List<EffortsResponse> getAllEfforts();

}

I added @EnableFeignClients annotation on my app. I know what feign client do.

what is the best way to do it?

I actually dont know how to put it in database in this case.. — Hüseyin Kadıoğlu, Aug 05 '20 at 08:06
Do you already have declared anything about your database? Like a repository? — Milgo, Aug 05 '20 at 08:21
Yes i create a jpa repository. ım not really sure what is gonna be my service layers actually. In my opinion , i can call the feign client service again on my service layer and get the data. — Hüseyin Kadıoğlu, Aug 05 '20 at 08:24

score 2 · Accepted Answer · answered Aug 05 '20 at 08:39

2

You can inject the feign client and repository into the service.

There should have a method in the service like this:

@Service
public class Service {
  private final Client client;
  private final Repository repository;

  public Service(Client c, Repository r) {
    this.client = c;
    this.repository = r;
  }

  public yourMethod() {
    List<EffortsResponse> items = client.getAllEfforts();
    //some transformation: items => entities
    respository.saveAll(entities);
  }
}

answered Aug 05 '20 at 08:39

Max Peng

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Please add @Autowired. – Milgo Aug 05 '20 at 09:21
@Milgo it is not necessary actually. – Max Peng Aug 05 '20 at 14:20

Using FeignClient to get data from external service

1 Answers1