How to use

json

method

in

io.vertx.rxjava.ext.web.codec.BodyCodec

 @Override
 public void start() throws Exception {

  WebClient client = WebClient.create(vertx);
  Single<HttpResponse<Data>> request = client.get(8080, "localhost", "/")
   .as(BodyCodec.json(Data.class))
   .rxSend();

  // Fire the request
  request.subscribe(resp -> System.out.println("Server content " + resp.body().message));

  // Again
  request.subscribe(resp -> System.out.println("Server content " + resp.body().message));

  // And again
  request.subscribe(resp -> System.out.println("Server content " + resp.body().message));
 }
}

 @Test
 public void testErrorHandling() throws Exception {
  try {
   client = WebClient.wrap(vertx.createHttpClient(new HttpClientOptions()));
   Single<HttpResponse<WineAndCheese>> single = client
    .get(-1, "localhost", "/the_uri")
    .as(BodyCodec.json(WineAndCheese.class))
    .rxSend();
   single.subscribe(resp -> fail(), error -> {
    assertEquals(IllegalArgumentException.class, error.getClass());
    testComplete();
   });
   await();
  } catch (Throwable t) {
   fail();
  }
 }
}

@Test
public void testResponseBodyAsAsJsonMapped() throws Exception {
 JsonObject expected = new JsonObject().put("cheese", "Goat Cheese").put("wine", "Condrieu");
 HttpServer server = vertx.createHttpServer(new HttpServerOptions().setPort(8080));
 server.requestStream().handler(req -> req.response().end(expected.encode()));
 try {
  server.listen(ar -> {
   client = WebClient.wrap(vertx.createHttpClient(new HttpClientOptions()));
   Single<HttpResponse<WineAndCheese>> single = client
    .get(8080, "localhost", "/the_uri")
    .as(BodyCodec.json(WineAndCheese.class))
    .rxSend();
   single.subscribe(resp -> {
    assertEquals(200, resp.statusCode());
    assertEquals(new WineAndCheese().setCheese("Goat Cheese").setWine("Condrieu"), resp.body());
    testComplete();
   }, this::fail);
  });
  await();
 } finally {
  server.close();
 }
}