server-sent-events

问题 Im trying to use SSE in PHP backend to send messages to a user. the functional part of the backend code looks like- <?php set_time_limit(0); header('Content-Type: text/event-stream'); header('Cache-Control: no-cache'); ignore_user_abort(0); @session_start(); ob_start(); echo "retry: 1000\n"; ob_flush(); flush(); require_once 'sql_connection_class.php'; require 'chatbox_class.php'; $chatbox=new chatboxclass($_GET['friendid']); function recursivesenddata(){ global $chatbox; $jsonobj=$chatbox-

问题 I am new to Firebase and building a prototype to test if suitable for our needs. I've got a chat example up and running, so far so good. Next is the need to listen for changes. I have tried connecting to the REST API supporting server sent events using both Java and JavaScript, but I can not make it work. In Java I have written the following code: public class FirebaseApplication { @Test public void test() throws Exception{ Client client = ClientBuilder.newBuilder() .register(SseFeature.class

问题 Looking for a simple example of a GET rest api that produces text/event-stream. How do I keep a track of listeners, how to use emitter in spark? Basically, how do I achieve SSE using spark framework (Server side code) 来源： https://stackoverflow.com/questions/45826776/sse-implementation-in-spark-rest

问题 I have a Rails app hosted on Heroku and I want to add Server Sent Events functionalities, but I can't find any documentation or blog post specific for Heroku. As not all servers (e.g. WEBrick) support ActionController::Live I was wondering what is the default server on Heroku and whether is possible to configure the environment (i.e. change server) to support SSEs. Any further advice about the server to use and how to configure would be greatly appreciated. 回答1: I think my answer is not so

问题 The new HTTP/2 protocol comes with some promising features. Some of them: Multiplexing - a single TCP connection can be used to make multiple HTTP/2 requests and receive multiple responses (to a single origin) HTTP/2 Server Push - sending server responses to the client without receiving requests, i.e. initiated by the server Bidirectional connection - HTTP/2 spec - Streams and Multiplexing: A "stream" is an independent, bidirectional sequence of frames exchanged between the client and server

问题 There is a great example of a chat app using Server-Sent Events by Konstantin Haase. I am trying to run it and have a problem with callbacks (I use Sinatra 1.3.2 and browse with Chrome 16). They simply do not run (e.g. after page reload), and therefore the number of connections is growing. Also, connection is closed in 30-60 sec unless one sets a periodic timer to send empty data, as suggested by Konstantin elsewhere. Can you replicate it? If yes, is it possible to fix these issues somehow?

问题 I have tested my Asp.NET MVC application to run SignalR and it properly handles the text/event-stream MIME with a serverSentEvents connection, using Visual Studio 2012, IIS Express (Microsoft-IIS/8.0) and Chrome. Now that I am deploying to production environment (IIS 7.5, .NET Framework 4.5, Windows Server 2008R2), I've noticed that SignalR always falls back to LongPolling transport, since the signalr/connect?transport=serverSentEvents etc times out. Is there a way to configure Microsoft-IIS

问题 I have a server-sent events handler in ASP.NET Response.ContentType = "text/event-stream"; while (true) { if(thereIsAMessage) { Response.Write(message); Response.Flush(); if (Response.IsClientConnected == false) { break; } } System.Threading.Thread.Sleep(1000); } The problem is that I can only detect a client disconnection when I send something to the client. And I don't want to poll it, which defeats the whole purpose of using Server-sent events in the first place. 回答1: Try to look at

问题 Default event name/type in server sent event is "message". I am trying to change the event name but it is not working. I am using Play 2.5 and akka streams. (actorRef,sourcePublisher)= Source .actorRef[T](10, OverflowStrategy.fail) .toMat(Sink.asPublisher(true))(Keep.both) .run() backsource = Source.fromPublisher[T](sourcePublisher).named("test1") Ok.chunked(backsource via EventSource.flow) .as(ContentTypes.EVENT_STREAM) But it is not changing the event name/type. It is still listening to

问题 I have a SSE server(eg: http://www.howopensource.com/2014/12/introduction-to-server-sent-events/) that sends output as given below. Each data section is separated with two new lines(\n\n). I want to write down a simple python program to display the SSE output continuously. ... id: 5 data: Got ID: 5 and the data will be like this. id: 6 data: Got ID: 6 and the data will be like this. id: 7 data: Got ID: 7 and the data will be like this. ... I tried following python code. from __future__ import