We can also inherit interfaces to avoid boilerplate code for the same type of services. Feign allows grouping common operations into convenient base interfaces. Let's see the following example:

@FeignClient(name="account-service") 
public interface AccountService { 
    
   @GetMapping(value = "/account/customer/{customer}") 
   List<Account> findByCutomer (@PathVariable("customer") Integer 
   customer); 
    
   ... 
} 

We can inherit this interface in the creation of another FeignClient service:

@FeignClient("users") 
public interface AdminAccountService extends AccountService { 
    
   ... 
}