I need to implement following behavior: Make a REST post request If response returns with a status 429 Too many requests, retry up to 3 times with a delay of 1 second If the third retry fails or ...

Let's say I have simple socket listening in one thread and I want to hold another thread until port is opened and socket is actually listening. Which one is correct: Using do? Documentation of do ...

I'm working on a Spring Boot application that uses Spring WebFlux, and I'm trying to intercept WebClient requests and responses. Specifically, I need to capture both the headers and the request/res...

I keep studying and trying Reactive Style of coding using Reactor and RxJava. I do understand that reactive coding makes better utilization of CPU compared to single threaded execution. Is there ...

I'm trying to find examples of WebClient use. My goal is to use Spring 5 WebClient to query a REST service using https and self signed certificate Any example?

What kinds of exceptions I should consider while working with Android Room. From my research I found out that there is only one exception that might occur. Room Exceptions That is also when you a...

I'm trying to reduce the width of the TextField component : Here is the render method: render() { return ( <div> <div> <form onSubmit={this.handleSubmit}> <TextField hin...

How to mock a method that returns Mono<Void>? I have this method that returns Mono<Void> public Mono<Void> deleteMethod(Post post) { return statusRepository.delete(post); } ...

I have started to slowly embrace the new Angular's Signal in my projects. I stumbled upon the following scenario, and while it works, I wonder if this is the "Angular way" of doing it. In...

I want to achieve result like this: L -1-2-3------4------5-6-7-8---- R ---------A------B----------C-- O ---------A3-----B4---------C8 So basically something like withLatestFrom but combining va...

I want to expose the metrics of a WebClient call to a downstream system from the service, metrics like count of request, min, max time for the response is needed. I want to know how I can write a ...

I'm trying to create a dashboard application where multiple widgets get updates through SSE. My DashboardController looks like: public class DashboardController { private WidgetService widgetServi...

I have this following code which uses WebClient to make HTTP calls. webClient.post() .uri("/users/track") .body(BodyInserters.fromObject(getUserTrackPayload(selection, customAttribute, partyId)...

I'm using a spring-webflux WebClient (build 20170502.221452-172) to access a Web application producing a stream of Entry objects (application/stream+json) like this: final WebClient producerClient...

Can someone give a clear definition together with a simple example that explains what is a "callback hell" for someone who does not know JavaScript and node.js ? When (in what kind of settings) do...

I have a list.stream() .map(element -> func()); where func() returns with Mono. What is the easiest way to convert this list of Mono<CustomObject> objects to Flux<CustomObject> a...

Let's say I'm having a Parent Component providing a Context which is a Store Object. For simplicity lets say this Store has a value and a function to update this value class Store { // value // fu...

I have a Flux and I want to convert it to List. How can I do that? Flux<Object> getInstances(String serviceId); // Current one List<Object> getInstances(String serviceId); // Demande...

I have a code where I can execute a piece of logic in loop with some delays in between using Flux. Something like this, Flux.defer(() -> service.doSomething()) .repeatWhen(v -> Flux.interval...

I happen to look into Apple's new Combine framework, where I see two things PassthroughSubject<String, Failure> CurrentValueSubject<String, Failure> Can someone explain to me what i...

How is Apache NIO HttpAsyncClient able to wait for a remote response without blocking any thread? Does it have a way to setup a callback with the OS (I doubt so?). Otherwise does it perform some so...

I am using publishOn vs subscribeOn both on the same flux as follows: System.out.println("*********Calling Concurrency************"); List<Integer> elements = new ArrayList<>(); Flu...

As per spring 5: WebClient is an interface representing the main entry point for performing web requests. It has been created as a part of the Spring Web Reactive module and will be replacing the ...

I've a use case where the stream should only emit when the cumulative "sum" equals or exceeds a given value, n. Let's take the example of six integers with n = 5. +---+------+---------+ |...

I need some help how could I match the password in react js. I used ant design the first password is working but for conform password I put statement its not working how could I do it handlePassw...