How to use

addCookie

method

in

reactor.netty.http.server.HttpServerResponse

@Override
protected void applyCookies() {
  for (String name : getCookies().keySet()) {
    for (ResponseCookie httpCookie : getCookies().get(name)) {
      Cookie cookie = new DefaultCookie(name, httpCookie.getValue());
      if (!httpCookie.getMaxAge().isNegative()) {
        cookie.setMaxAge(httpCookie.getMaxAge().getSeconds());
      }
      if (httpCookie.getDomain() != null) {
        cookie.setDomain(httpCookie.getDomain());
      }
      if (httpCookie.getPath() != null) {
        cookie.setPath(httpCookie.getPath());
      }
      cookie.setSecure(httpCookie.isSecure());
      cookie.setHttpOnly(httpCookie.isHttpOnly());
      this.response.addCookie(cookie);
    }
  }
}

@Override
protected void applyCookies() {
  for (String name : getCookies().keySet()) {
    for (ResponseCookie httpCookie : getCookies().get(name)) {
      Cookie cookie = new DefaultCookie(name, httpCookie.getValue());
      if (!httpCookie.getMaxAge().isNegative()) {
        cookie.setMaxAge(httpCookie.getMaxAge().getSeconds());
      }
      if (httpCookie.getDomain() != null) {
        cookie.setDomain(httpCookie.getDomain());
      }
      if (httpCookie.getPath() != null) {
        cookie.setPath(httpCookie.getPath());
      }
      cookie.setSecure(httpCookie.isSecure());
      cookie.setHttpOnly(httpCookie.isHttpOnly());
      this.response.addCookie(cookie);
    }
  }
}

.port(0)
.cookieCodec(ServerCookieEncoder.LAX, ServerCookieDecoder.LAX)
.handle((req, res) -> res.addCookie(new DefaultCookie("cookie1", "test_value"))
             .sendString(Mono.just("test")))
.wiretap(true)

@Override
protected void applyCookies() {
  for (String name : getCookies().keySet()) {
    for (ResponseCookie httpCookie : getCookies().get(name)) {
      Cookie cookie = new DefaultCookie(name, httpCookie.getValue());
      if (!httpCookie.getMaxAge().isNegative()) {
        cookie.setMaxAge(httpCookie.getMaxAge().getSeconds());
      }
      if (httpCookie.getDomain() != null) {
        cookie.setDomain(httpCookie.getDomain());
      }
      if (httpCookie.getPath() != null) {
        cookie.setPath(httpCookie.getPath());
      }
      cookie.setSecure(httpCookie.isSecure());
      cookie.setHttpOnly(httpCookie.isHttpOnly());
      this.response.addCookie(cookie);
    }
  }
}

@Test
public void clientWithoutCookieGetsANewOneFromServer() {
  DisposableServer server =
      HttpServer.create()
           .port(0)
           .route(r -> r.get("/test", (req, resp) ->
                    resp.addCookie(new DefaultCookie("cookie1", "test_value"))
                      .send(req.receive()
                           .log("server received"))))
           .wiretap(true)
           .bindNow();
  Mono<Map<CharSequence, Set<Cookie>>> cookieResponse =
      HttpClient.create()
           .port(server.port())
           .wiretap(true)
           .get()
           .uri("/test")
           .responseSingle((res, buf) -> Mono.just(res.cookies()))
           .doOnSuccess(System.out::println)
           .doOnError(t -> System.err.println("Failed requesting server: " + t.getMessage()));
  StepVerifier.create(cookieResponse)
        .expectNextMatches(l -> {
          Set<Cookie> cookies = l.get("cookie1");
          return cookies.stream().anyMatch(e -> e.value().equals("test_value"));
        })
        .expectComplete()
        .verify(Duration.ofSeconds(30));
  server.disposeNow();
}

@Override
protected void applyCookies() {
  for (String name : getCookies().keySet()) {
    for (ResponseCookie httpCookie : getCookies().get(name)) {
      Cookie cookie = new DefaultCookie(name, httpCookie.getValue());
      if (!httpCookie.getMaxAge().isNegative()) {
        cookie.setMaxAge(httpCookie.getMaxAge().getSeconds());
      }
      if (httpCookie.getDomain() != null) {
        cookie.setDomain(httpCookie.getDomain());
      }
      if (httpCookie.getPath() != null) {
        cookie.setPath(httpCookie.getPath());
      }
      cookie.setSecure(httpCookie.isSecure());
      cookie.setHttpOnly(httpCookie.isHttpOnly());
      this.response.addCookie(cookie);
    }
  }
}