reactive-programming

Recently, I decided to try spring 5 with projectreactor.io (io.projectreactor:3.1.1). Does anyone know what the best case of using this functions? What cons and pros of using each of them and where they should be used? Good examples will be helpful. You have two broadly different categories of operators here: Operators that work on the Flux itself transform and compose are for code mutualization When you compose chains of operators regularly and you have common operator usage patterns in your application, you can mutualize this code or give it a more descriptive name by using compose and

I'm using kafka stream and I'm trying to materialize a KTable into a topic. It works but it seems to be done every 30 secs or so. How/When does Kafka Stream decides to materialize the current state of a KTable into a topic ? Is there any way to shorten this time and to make it more "real-time" ? Here is the actual code I'm using // Stream of random ints: (1,1) -> (6,6) -> (3,3) // one record every 500ms KStream<Integer, Integer> kStream = builder.stream(Serdes.Integer(), Serdes.Integer(), RandomNumberProducer.TOPIC); // grouping by key KGroupedStream<Integer, Integer> byKey = kStream

I'm trying out the new WebClient from Spring 5 (5.0.0.RC2) in a codebase that uses reactive programming and I've had success mapping the JSON response from an endpoint to a DTO in my app, which works very nice: WebClient client = WebClient.create(baseURI); Mono<DTO> dto = client.get() .uri(uri) .accept(MediaType.APPLICATION_JSON) .exchange() .flatMap(response -> response.bodyToMono(DTO.class)); However, now I'm trying to the response body from an endpoint which uses Protocol Buffers (binary data served as application/octet-stream ), so I'd like to get the raw bytes from the response, which I

I'm currently trying to get to know FRP through Heinrich Apfelmus' reactive-banana , which seems to be a quite well documented and simple library, compared to the other ones I've looked at. However, I can't wrap my head around the AddHandler type. Let's say I want to use GLFW to get mouse button clicks so that I have something like eMouseButton :: Event () . Looking at the examples, it seems that I'd somehow have to use fromAddHandler , but I have no idea how to assemble that AddHandler argument. I think I'll have to use newAddHandler somehow, but how? I guess an example of how to connect

There is some diagrams of Yampa switches at: http://www.haskell.org/haskellwiki/Yampa/switch http://www.haskell.org/haskellwiki/Yampa/rSwitch http://www.haskell.org/haskellwiki/Yampa/kSwitch (and so on). I've found that the switch , the only one diagram with description, is the easiest one to get understand. The others seems hard to follow the similar symbols to read the diagrams. For example, to try to read the rSwitch with the symbols used in the switch may be: Be a recursive SF which is always fed a signal of type 'in' and returns a signal of type 'out'. Start with an initial SF of the same

I have a UIButton added to a view. My view also has three text box viz. username , password and confirmPassword . Based on the legitimate content of these text box, I need to enable my signUp button. Here is my code snippet :- UIButton *signUp = [[UIButton alloc]initWithFrame:CGRectMake(10, 100, 50, 20)]; signUp.backgroundColor = [UIColor greenColor]; signUp.enabled = NO ; [self.view addSubview:signUp]; RACSignal *formValid = [RACSignal combineLatest:@[ username.rac_textSignal, password.rac_textSignal, confirmPassword.rac_textSignal ] reduce:^(NSString *username, NSString *password, NSString