# Get Started with Reactive Programming in Spring **URL:** \ **Category:** Developer Blog Comments\ **Created:** [September 24, 2018, 7:38pm UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936 "2018-09-24T19:38:07Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [September 24, 2018, 7:38pm UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/1 "2018-09-24T19:38:07Z")
[Get Started with Reactive Programming in Spring](https://developer.okta.com/blog/2018/09/21/2018-09-21-reactive-programming-with-spring/) Reactive programming is an approach to writing software that embraces asynchronous I/O. It’s pretty awesome. ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [January 4, 2020, 6:15pm UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/2 "2020-01-04T18:15:08Z")
**Simone Di Cola** Nice article. Well done! ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [March 12, 2020, 10:36am UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/3 "2020-03-12T10:36:50Z")
**edward wu** Hi, In the method read of Asynchronous, the while block seems wrong, since [fileChannel.read](http://fileChannel.read "fileChannel.read") invoked in completed method. ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [April 27, 2020, 10:43am UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/4 "2020-04-27T10:43:09Z")
**amatureandroiduser** Would have been great to see same example written in reactive program ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [April 27, 2020, 3:09pm UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/5 "2020-04-27T15:09:31Z")
**Matt Raible** The next post in this series has code: [Build Reactive APIs with Spring WebFlux](https://developer.okta.com/blog/2018/09/24/reactive-apis-with-spring-webflux "https://developer.okta.com/blog/2018/09/24/reactive-apis-with-spring-webflux"). ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [April 28, 2020, 4:04am UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/6 "2020-04-28T04:04:12Z")
**amatureandroiduser** Thanks for sharing the next post. May be i should have been more clear, this post explains file read and serving it over network as non-reactive example. 1. how would be the same code in reactive programming 2. how would it respond when server is loaded with lot of request, may be unit/integration test to explain that 3. file read is synchronous blocking io operation, multiple concurrent requests for same file or different file, how would reactive programming handle that 4. how would the client be designed to access this async way of file read ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [April 28, 2020, 3:26pm UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/7 "2020-04-28T15:26:19Z")
**Matt Raible** Thanks for your suggestions. I’ll keep them in mind for my next post on reactive programming. ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [April 29, 2020, 12:07am UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/8 "2020-04-29T00:07:13Z")
**amatureandroiduser** Appreciate your help. Your posts are very helpful. Please do share more ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [February 26, 2021, 7:14am UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/9 "2021-02-26T07:14:42Z")
**Deep Mahajan** Hi, Anyone of you please let me know how we can emit/push flux using Sinks.Many.unicastspec ?I tried unicastSpecs.backpressure().tryEMitNext(10) but it seems like it is not working.Please some one provide example of it that would be great help. ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [March 11, 2021, 4:50am UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/10 "2021-03-11T04:50:11Z")
**Matt Raible** I would suggest posting this question to Stack Overflow and tagging it with “webflux”. ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [September 20, 2021, 7:37am UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/11 "2021-09-20T07:37:31Z")
**Nishant Malhotra** Hi Matt, Very nice article explaining reactive programming and how in form of Spring webflux we got a framework that wrap around Reactor API . I am very new to reactive and microservices as well . Can you please guide any real time example where multiple services created in Spring boot , registered with Spring cloud Registry and has Spring cloud gateway configured as proxy communicating with each other in form of events using reactive programming . If yes that will be really helpful for me to relate where actually reactive fits in. ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [September 20, 2021, 2:47pm UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/12 "2021-09-20T14:47:33Z")
**Matt Raible** Yes, you can see my [Reactive Java Microservices with Spring Boot and JHipster](https://developer.okta.com/blog/2021/01/20/reactive-java-microservices "https://developer.okta.com/blog/2021/01/20/reactive-java-microservices") post for an example. You can also navigate directly to [its GitHub repo](https://github.com/oktadev/java-microservices-examples/tree/main/reactive-jhipster "https://github.com/oktadev/java-microservices-examples/tree/main/reactive-jhipster"). ---
**Author:** ![oktadev-blog](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/oktadev-blog/32/3422_2.png) [@oktadev-blog](https://devforum.okta.com/u/oktadev-blog)\ **Post date:** [September 21, 2021, 1:19pm UTC](https://devforum.okta.com/t/get-started-with-reactive-programming-in-spring/16936/13 "2021-09-21T13:19:42Z")
**Nishant Malhotra** Thanks Matt