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Handle failures gracefully – Allow fast degradation

Pragya Keshap answered on February 15, 2023 Popularity 1/10 Helpfulness 1/10

answer Handle failures gracefully – Allow fast degradation

Handle failures gracefully – Allow fast degradation

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If there are failures in your Microservice ecosystem, then you need to fail fast by opening the circuit. This ensures that no additional calls are made to the failing service, once the circuit breaker is open. So we return an exception immediately. This pattern also monitor the system for failures and once things are back to normal, the circuit is closed to allow normal functionality.

@Service

public class GreetingService {

    @HystrixCommand(fallbackMethod = "defaultGreeting")

    public String getGreeting(String username) {

        return new RestTemplate()

          .getForObject("http://localhost:9090/greeting/{username}", 

          String.class, username);

    }

  

    private String defaultGreeting(String username) {

        return "Hello User!";

    }

}


@Controller

public class GreetingController {

  

    @Autowired

    private GreetingService greetingService;

  

    @GetMapping("/get-greeting/{username}")

    public String getGreeting(Model model, @PathVariable("username") String username) {

        model.addAttribute("greeting", greetingService.getGreeting(username));

        return "greeting-view";

    }

https://www.linkedin.com/pulse/microservices-resilient-fault-tolerant-ahmed-marey/

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: handle java

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Contributed on Feb 15 2023

Pragya Keshap

0 Answers Avg Quality 2/10

Handle failures gracefully – Allow fast degradation

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