reactive-programming

I have tried all 3 solutions suggested in what is the right way to handle errors in spring-webflux , but WebExceptionHandler is not getting called. I am using Spring Boot 2.0.0.M7 . Github repo here @Configuration class RoutesConfiguration { @Autowired private lateinit var testService: TestService @Autowired private lateinit var globalErrorHandler: GlobalErrorHandler @Bean fun routerFunction(): RouterFunction<ServerResponse> = router { ("/test").nest { GET("/") { ServerResponse.ok().body(testService.test()) } } } } @Component class GlobalErrorHandler() : WebExceptionHandler { companion object

I have a sequence of numbers that are processed using an async method. I'm simulating a remote service call that may fail . In case of failure, I would like to retry until the call successes. The problem is that with the code I'm trying, every time an exception is thrown in the async method, the sequence seems to hang forever . You can test it with this simple code snippet (it's tested in LINQPad) Random rnd = new Random(); void Main() { var numbers = Enumerable.Range(1, 10).ToObservable(); var processed = numbers.SelectMany(n => Process(n).ToObservable().Retry()); processed.Subscribe( f =>

I'm RxJava newbie, and I've got following problem. Say I have sequence of items and on of items propagates error, I want to ignore it and to continue processing other items. I have following snippet: Observable.from(Arrays.asList("1", "2", "3")) .map(x -> { if (x.equals("2")) { throw new NullPointerException(); } return x + "-"; }) .onExceptionResumeNext(Observable.empty()) .subscribe(System.out::println); I'm getting: 1- But I want to get: 1- , 3- How can I do that? the trick is to wrap the value, which would be transformed somehow, into a new observable and flatmap over it as in the

I'm currently teaching myself reactive programming with rxjs, and I've set myself a challenge of creating an observable stream which will always emit the same result to a subscriber no matter what. I've memoized the creation of an HTTP "GET" stream given a specific URL, and I'm trying to act on that stream every two seconds, with the outcome being that for each tick of the timer, I'll extract a cached/memoized HTTP result from the original stream. import superagent from 'superagent'; import _ from 'lodash'; // Cached GET function, returning a stream that emits the HTTP response object var

I'm new to Flutter and I'm trying to accomplish a simple thing: I want to create a signup functionality using BLoC pattern and streams. For the UI part I have a stepper , that on the very last step should fire a request to the server with the collected data. I believe I have everything working until the StreamBuilder part. StreamBuilders are meant to return Widgets, however, in my case I don't need any widgets returned, if it's a success I want to navigate to the next screen, otherwise an error will be displayed in ModalBottomSheet. StreamBuilder is complaining that no widget is returned. Is

I have a R Shiny app, which calculates several statistics in different tabsets. As the calculations are quite computation intensive, I use submitButton to prevent reactivity. My problem is now that each calculation (all in different tabsets) are writing outputs to a folder and I want Shiny to write an output for all tabsets when initializing. Unfortunately, Shiny only creates an output for the tabset, that is active when initializing. Is there a way to tell Shiny , that it should calculate/render outputs for every tab when initializing? Here is a modified example from the Shiny [Tutorial]:(