Socket.IO

问题 I have been using OpenShift with node.js and socket.io. My code is: server.listen(process.end.OPENSHIFT_NODEJS_PORT || 3000); My code says that it returns port 8080. However, I get this error: DEBUG: Starting child process with 'node server.is' Info: socket.io started warn:error raised: Error: listen EACCES How can I fix this? No other solution I can find works. 回答1: You also need to specify to bind to your OPENSHIFT_NODEJS_IP in your listen, as it is trying to bind to 0.0.0.0 by default,

问题 I wanted to use socket.io to push data from server to browser but the project is java tomcat one, and there are many implementation in Github for the server implementation of socket.io . Most of them say they are deprecated or better ones are available.Can anyone suggest me a good implementation. And I see lot of demo and sample code about broadcasting with socket.io . My requirement is to push different messages to different clients. Could someone point me to some good demo or tutorial

问题 This question already has answers here : Socket.IO - how do I get a list of connected sockets/clients? (26 answers) Closed 2 days ago . I have this code right now that sets the nick and room: io.sockets.on('connection', function(client){ var Room = ""; client.on("setNickAndRoom", function(nick, fn){ client.join(nick.room); Room = nick.room; client.broadcast.to(Room).emit('count', "Connected:" + " " + count); fn({msg :"Connected:" + " " + count}); }); I wanted to know how I could get how many

问题 I want the server to start listening to a certain socket from the client only after the client sends a message on another socket. I tried composing my code like that: socket.on('listentome', function() { socket.on('actualmessage', function() { ... }); }); However it did not work. Any suggestions? 回答1: The simplest solution would be to keep state, which lets you know if you're awaiting the second event or not. let waiting = false; socket.on('listentome', () => waiting = true); socket.on(

问题 I'm currently building an app that uses a combination of Flask and Flask SocketIO to handle a combination of HTTP and WebSocket traffic. After deploying my application on a server and adding uWSGI and Nginx as a gateway, the wsgi script gives me the following error in the logs: TypeError: 'SocketIO' object is not callable [pid: 4262|app: 0|req: 3/8] XXX.XXX.XXX.XXX () {46 vars in 912 bytes} [Tue Jul 11 14:57:25 2017] GET / => generated 0 bytes in 0 msecs (HTTP/2.0 500) 0 As stated in the

问题 I am having some trouble sending a button state to all clients connected to my server. I am trying to turn on a light from a raspberry pi hosted server using express and socket.io. I first click the button from the client and it will send the state of the button to my server which then emits it to all clients which clicks the button on all clients page but then button then gets stuck in an endless loop and continues to click. Is the process that I am doing correct? I can find lots of examples

问题 I have sockets working, in that each client seems to be running the proper code block that console.logs the event. The client that sends the message updates the view, but the other connected clients don't. But when another client sends a message, its view updates with all the backlogged messages that it's been pushing to the model, so I know that part is working. It's just the view that's not updating. I've done some reading, and it looks like I need to refactor my code to use $scope and

问题 This question already has answers here : How do you check that a number is NaN in JavaScript? (31 answers) Closed 4 years ago . I am using following code to update database in node.js var mBooking = rows[0]; var distance = mBooking.distanceTravelled; var lastLng = mBooking.lastLng; var lastLat = mBooking.lastLat; if(lastLat == 0) { lastLat = lat; lastLng = lng; } var currentPoint = new GeoPoint(lat, lng); var oldPoint = new GeoPoint(lastLat, lastLng); distance = distance + (currentPoint

问题 Following on the question asked by me: socket io changes socket.id repeatedly Registering only happens when the client comes on the chatpage: On the client: socketConnect: function() { socket = io.connect('https://socket.mydomain.nl'); socket.on('connect', function() { socket.emit('register', userID, 'Lobby'); }); }; Server var UserSockIdStorage = {}, Allsocketids = []; //Clients connect and register here. io.sockets.on('connection', function(socket) { socket.on("register", function(userID,

问题 I have tried every conceivable haproxy configuration posted in blogs and stackoverflow, but I still cannot get haproxy and socket.io to work 100% of the time. In the majority of browsers that "support" web sockets it fails and falls back on long polling after missed heart beats. The browser appears to make the initial connection (nodejs debugging), but I cannot get the clients to receive the connection response. Is anyone else having similar problems? Below are the software version numbers