Configure the fallback method:

Pragya Keshap answered on February 19, 2023 Popularity 1/10 Helpfulness 1/10

answer Configure the fallback method:

Configure the fallback method:

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The @HystrixCommand annotation is used to configure fallbackMethod. We'll annotate controller RestaurantServiceAPI.java methods to configure the fallback methods. Whenever repeated failures are identified in restaurat-api calls written in this controller class

@RequestMapping("/restaurants/{restaurant-id}")
@HystrixCommand(fallbackMethod = "defaultRestaurant")
public ResponseEntity<Restaurant> getRestaurant(
  @PathVariable("restaurant-id") int restaurantId) {
  String url = "http://restaurant-service/v1/restaurants/" + 
                restaurantId;
  LOG.debug("GetRestaurant from URL: {}", url);

  ResponseEntity<Restaurant> result = restTemplate.getForEntity(
                                      url, Restaurant.class);
  LOG.info("GetRestaurant http-status: {}", result.getStatusCode());
  LOG.debug("GetRestaurant body: {}", result.getBody());

  return new ResponseEntity<>(result.getBody(), HttpStatus.OK);
}

@HystrixCommand(fallbackMethod = "defaultRestaurants")
@RequestMapping(method = RequestMethod.GET)
public ResponseEntity<Collection<Restaurant>> findByName(@RequestParam("name") String name) {
  LOG.info(
        String.format("api-service findByName() 
        invoked:{} for {} ", "v1/restaurants?name=", name));
  String url = "http://restaurant-service/v1/restaurants?
                name=".concat(name);
  LOG.debug("GetRestaurant from URL: {}", url);
  Collection<Restaurant> restaurants;
  ResponseEntity<Collection> result = restTemplate.getForEntity(
                                      url, Collection.class);
  LOG.info("GetRestaurant http-status: {}", result.getStatusCode());
  LOG.debug("GetRestaurant body: {}", result.getBody());

  return new ResponseEntity<>(result.getBody(), HttpStatus.OK);
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: configure fallback java

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Contributed on Feb 19 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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