MockServiceClientSnippet.java

    @CircuitBreaker(name = "mockService", fallbackMethod = "fallback")
    public Mono<MockServiceResponse> getMockServiceResponse() {
        return mockServiceWebClient.get()
                .uri(DOWNSTREAM_PATH)
                .retrieve()
                .bodyToMono(MockServiceResponse.class)
                .doOnError(ex -> {
                    throw new RuntimeException("the exception message is - "+ex.getMessage());
                });
    }

    public Mono<MockServiceResponse> fallback(Throwable ex) {
        //Arrays.stream(ex.getStackTrace()).forEach(System.out::println);
        System.out.println("---> "+ex.getMessage());
        MockServiceResponse mockServiceResponse = new MockServiceResponse();
        mockServiceResponse.setError(true);
        return Mono.just(mockServiceResponse);
    }