private List<Ingredient> callViaFeign(Order order, String processId) {
   return order
       .getItems()
       .stream()
       .map(item -> ingredientsProxy.ingredients(item, processId, FEIGN.name()))
       .collect(Collectors.toList());
 }
 private List<Ingredient> callViaRestTemplate(Order order, String processId) {
   return order
       .getItems()
       .stream()
       .map(
           item ->
               restTemplate
                   .exchange(
                       requestEntity()
                           .processId(processId)
                           .serviceName(Collaborators.ZUUL)
                           .url("/ingredients/" + item.name())
                           .httpMethod(HttpMethod.POST)
                           .build(),
                       Ingredient.class)
                   .getBody())
       .collect(Collectors.toList());
 }