CODEWITHSUNDEEP
javareactive-programmingreactivemicronaut
Sudipto Sarkar
Sudipto Sarkar

Reputation: 74

How do I set cookies in Micronaut Reactive Controllers

I have these service methods which return Monos, and I'm trying to set the cookies with them. This doesn't work. Does anyone know how to do this?

I need this to return HttpResponse<Mono> and using block() results in an error saying java.lang.IllegalStateException: block()/blockFirst()/blockLast() are blocking, which is not supported in thread default-nioEventLoopGroup-2-4

      @Post
      public Mono<HttpResponse<Mono<UserDto>>> login(@Body LoginDto loginDto, @Header(value = "User-Agent") String userAgentStr,
                                                     @CookieValue(value = "myapp-auth-deviceId") UUID deviceId) {
        return registrationService.login(loginDto)
            .flatMap(user -> {
              MutableHttpResponse<Mono<UserDto>> httpResponse = HttpResponse.ok(Mono.just(user));
              return registrationService.registerDevice(userAgentStr, deviceId, user)
                  .flatMap(device -> registrationService.getJwtToken(user, device))
                  .flatMap(jwtToken -> {
                    httpResponse.cookie(Cookie.of(DEVICE_ID_COOKIE_NAME, deviceId.toString()).path("/").maxAge(365 * 24 * 3600));
                    httpResponse.cookie(Cookie.of(AUTH_COOKIE_NAME, jwtToken).maxAge(365 * 24 * 3600));
                    return Mono.just((HttpResponse<Mono<UserDto>>) httpResponse);
                  });
            }).single();
      }

Upvotes: 1

Views: 42

Answers (2)

Sudipto Sarkar
Sudipto Sarkar

Reputation: 74

Figured it out.

    MutableHttpResponse<Mono<UserDto>> httpResponse = HttpResponse.ok();
    UUID finalDeviceId = deviceId;
    return httpResponse.body(registrationService.login(loginDto)
        .flatMap(user -> registrationService.registerDevice(userAgentStr, finalDeviceId, user)
            .flatMap(device -> registrationService.getJwtToken(user, device))
            .map(jwtToken -> {
              httpResponse.cookie(Cookie.of(DEVICE_ID_COOKIE_NAME, finalDeviceId.toString()).path("/").maxAge(365 * 24 * 3600));
              httpResponse.cookie(Cookie.of(AUTH_COOKIE_NAME, jwtToken).path("/").maxAge(365 * 24 * 3600));
              return user;
            })));

This way it is waiting for the body, while I'm populating the cookies. The body is resolved after the cookies are populated.

Upvotes: 0

Sunpreet Singh
Sunpreet Singh

Reputation: 1

  1. import required class: -->cookie to respond a cookie. -->HttpResponse to send a response that includes the cookie.

2.Set the cookie: -->Use the HttpResponse.cookie()method to create a respone with cookie.

Upvotes: 0

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