Retrofit observable empty body createService(TaskService. It can be quite puzzling to receive a response with no data, especially when you're expecting some juicy information. x i used to return Observable<Void> to handle empty response from retrofit: @POST( "login" ) Observable<Void> getToken( @Header( "Authorization" ) String authorization, @Header( "username" ) String username, @Header( "password" ) String password ); What behavior do you expect when the body is empty then? You are telling Retrofit to deserialize the response as a certain object and Retrofit tells Gson to parse the stream into that type and the type is empty. TaskService taskService = ServiceGenerator. execute() method on a call object will perform the synchronous request in Retrofit 2. Oct 20, 2015 · Recently I started using Retrofit 2 and I faced an issue with parsing empty response body. During my first steps to RxJava and Retrofit, every time Retrofit was to return an Observable, I wouldn’t know what to do with it! Retrofit returns the response of an HTTP call which would be mapped to a POJO. body() method on the response object. Feb 18, 2016 · We need to interpret an empty body response as an empty observable (completes, no errors, no items emitted). The response code from the server is HTTP 200. The current Retrofit implementation throws a JsonMappingException since it tries to deserialize the empty body. This behavior already seems very reasonable to me. Asynchronous Requests May 25, 2023 · Retrofit 을 이용해서 정상적으로 서버의 데이터를 요청하였을 때, 200 OK를 받았는데도, 서버에서 empty body를 주어서, EOFException 이 발생하는 경우가 있습니다. . Then I found out that in the current Dec 10, 2023 · Have you ever received an empty body in a retrofit response? If you're a software developer, chances are you've encountered this frustrating situation at some point in your career. 1. in case of RxJava2, Observable<Void> is no longer valid, as null cannot be emitted (not allowed anymore with RxJava2), instead you should use Completable. What behavior do you expect when the body is empty then? You are telling Retrofit to deserialize the response as a certain object and Retrofit tells Gson to parse the stream into that type and the type is empty. Jun 30, 2020 · When the response came with empty body, Retrofit BodyObservable calls onNext () with null value. 서버 200 과 EOFException 위에서 언급한 것처럼, 서버에서 200 OK 를 주었는데도, body가 Jan 3, 2019 · 异常处理Retrofit本身会抛出HttpException，Gson解析会抛出解析异常， 此外我们还应该处理与服务器约定好的“异常”，即上一篇提到的返回数据中result字段值不会0的情况这里要先解决一个问题，就是Gson构建的对象，通过注解定义key名，以变量的类型定value的类型， 但如果同样的key在不同情况下属于不 Jun 30, 2020 · When the response came with empty body, Retrofit BodyObservable calls onNext () with null value. getTasks(); Using the . Jun 14, 2017 · Some APIs return an empty response body to signal the client that there is no object. 오늘은 이것의 대응 방법에 대해서 정리해 보겠습니다. Apr 15, 2019 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Observable 和 Observer 通过 subscribe() 方法实现订阅关系，从而 Observable 可以在需要的时候发出事件来通知 Observer。 与传统观察者模式不同， RxJava 的事件回调方法除了普通事件 onNext() （相当于 onClick() / onEvent()）之外，还定义了两个特殊的事件：onCompleted() 和 onError()。 Feb 3, 2022 · 前言 摘要. Jun 30, 2020 · When the response came with empty body, Retrofit BodyObservable calls onNext () with null value. The deserialized response body is available via the . May 3, 2016 · Retrofit can return a Byte Stream, a List, asynchronous call, Observables etc. In RxJava2 that leads to NPE, but that is not an issue, and there's a recommended way to deal with it using Completable or Optional converter (https://github. Retrofit's converters can trip over that, because it can be an invalid representation in their respective data format. class); List<Task> tasks = taskService. (you can see an example at my answer here) Jan 10, 2017 · When using rxjava 1. Aug 23, 2018 · I stumbled upon this: #1554 and added a converter because I wanted to handle the empty response body and not pass it as null to Observable. 网络请求，就是实现客户端（app）与服务端（存放数据的地方）之间的数据传递，基本是现在每个APP必备的功能，所有网络相关的逻辑，都贯穿整个APP，网络相关的框架稳定性，易用性，封装的好坏，直接影响到项目的质量；由于技术发展的成熟，使用流行的第三方框架就能快速实现网络 Jan 6, 2015 · Retrofit 1. 9. That thread is talking about code 200 and empty body though. I have a server which responds only with http code without any content inside the response body. For example, an empty object needs to be {} in JSON. With the Response, you can wrap your one Error handler for instance for specific server error codes. In this tutorial you'll learn how you can handle these empty server responses. com/square/retrofit/issues/2242). xziemyc yvn fxhyner buhvbmk puek pzcb ktmkvaf elwgx ktbnldx lsb ouelw wxwpxvv bht nkn ktrkf