CODEWITHSUNDEEP
javaspringspring-webflux
rusna
rusna

Reputation: 376

Get body to flux if I have list of strings in server request body and iterate over them

In my route I have one Post endpoint for which I expecting to accept the list of strings which I will then proccessing in handler.

My question is, how can I get these list of strings from ServerRequest body and iterate over them using Flux?

My Router

@Configuration
public class TestUrlRouter {

    @Bean
    public RouterFunction<ServerResponse> routes(TestUrlHandler handler) {
        return RouterFunctions.route(
                RequestPredicates.POST("/urls").and(RequestPredicates.accept(MediaType.APPLICATION_JSON)),
                handler::testUrls
        );
    }
}

My handler

@Component
public class TestUrlHandler {

    @Autowired
    private TestUrlService testUrlService;

    public Mono<ServerResponse> testUrls(ServerRequest request) {

        request.bodyToFlux(List.class) // how to iterate over strings?
    }
}

Upvotes: 2

Views: 3881

Answers (2)

rusna
rusna

Reputation: 376

I finally solved it by this code:

@Component
public class TestUrlHandler {

    @Autowired
    private TestUrlService testUrlService;

    public Mono<ServerResponse> testUrls(ServerRequest request) {

        ParallelFlux<TestUrlResult> results = request.bodyToMono(String[].class)
                .flatMapMany(Flux::fromArray)
                .flatMap(url -> testUrlService.testUrls(url))
                .doOnComplete(() -> System.out.println("Testing of URLS is done."));

        return ServerResponse.ok().contentType(MediaType.APPLICATION_JSON).body(results, TestUrlResult.class);
    }
}

Upvotes: 2

Barath
Barath

Reputation: 5283

There are lot of ways of achieving it.

Keeping it simple(modify as per your need).

protected static class WrapperList{

        private List<String> urls;

// getter & setter
}

public Mono<ServerResponse> testUrls(ServerRequest request) {       

        return request.bodyToFlux(WrapperList.class).flatMap(wrapperList -> {
            wrapperList.getUrls().stream().forEach(System.out::println);
            return ServerResponse.ok().build();
        }).take(1).next();

    }

request payload:

{
  "urls": ["url1","url2"]
}

Upvotes: 1

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