Socket.IO

Page becomes unresponsive when data added to amChart4 through socket

由 谁都会走 提交于 2020-05-14 09:09:06
问题 I'm displaying 3 charts (Gauge chart, Pie chart, XYChart) -using amChart4 and I'm fetching data from backend (sqlite3). Here I'm using some real time data i.e., for every minute data is added in database and I'm fetching that data and displaying it in chart. In order to fetch regularly I'm using socket . After some time page becomes unresponsive (chrome alert msg). It crashes. Below is my code for the client-side (Front end). product.service.ts init() { this.getConfig(); this._todayWithSec =

Combine sockets and express when using express middleware?

由 心已入冬 提交于 2020-05-13 06:17:39
问题 Is there a way to get the socket of a request inside of an express middleware? ie: import express from 'express'; import io from 'socket.io'; const app = express(); // combine app and io somehow ... // When client makes a GET request to '/emit/to/self', that client's socket will recieve the 'hello:world' message. app.get('/emit/to/self', (req, res) => { req.socket.emit('hello:world', { ... }); res.send('You just triggered your own socket!') }) The idea being that express middleware has a req

Combine sockets and express when using express middleware?

由 梦想的初衷 提交于 2020-05-13 06:15:08
问题 Is there a way to get the socket of a request inside of an express middleware? ie: import express from 'express'; import io from 'socket.io'; const app = express(); // combine app and io somehow ... // When client makes a GET request to '/emit/to/self', that client's socket will recieve the 'hello:world' message. app.get('/emit/to/self', (req, res) => { req.socket.emit('hello:world', { ... }); res.send('You just triggered your own socket!') }) The idea being that express middleware has a req

Flask, Python and Socket.io: multithreading app is giving me “RuntimeError: working outside of request context”

由 懵懂的女人 提交于 2020-05-11 04:14:07
问题 I have been developing an app using Flask , Python and Flask-Socket.io library. The problem I have is that the following code will not perform an emit correctly due to some contexts issue RuntimeError: working outside of request context I am writing only one python file for the entire program by now. This is my code ( test.py ): from threading import Thread from flask import Flask, render_template, session, request, jsonify, current_app, copy_current_request_context from flask.ext.socketio

how to build multi-user video chatting web app using webRTC, node.js and socket.io

由 拟墨画扇 提交于 2020-05-10 06:18:22
问题 im trying to make a web app that supports multi-user video chatting. ive read an article about webrtc on "getting started with webrtc" (http://www.html5rocks.com/en/tutorials/webrtc/basics/) and done some demo on codelab. but i still dont really know how to make it a 3-way conferencing call.i dont really know a lot about node.js and socket.io. just started learning them because im trying to build this video web app. so my question is which part of webrtc or socket.io determines that more than

how to build multi-user video chatting web app using webRTC, node.js and socket.io

由 南笙酒味 提交于 2020-05-10 06:14:07
问题 im trying to make a web app that supports multi-user video chatting. ive read an article about webrtc on "getting started with webrtc" (http://www.html5rocks.com/en/tutorials/webrtc/basics/) and done some demo on codelab. but i still dont really know how to make it a 3-way conferencing call.i dont really know a lot about node.js and socket.io. just started learning them because im trying to build this video web app. so my question is which part of webrtc or socket.io determines that more than

Send update notification to particular users using socket.io

由 你离开我真会死。 提交于 2020-05-09 18:55:54
问题 Following is the code on front end, where storeSelUserId contains user_id to send the message- FYI - Node Version 1.1.0 // Socket Notification var socket = io('http://localhost:6868'); socket.on('connection', function (data) { socket.emit('send notification', { sent_to: storeSelUserId }); }); Following is the server code in routes file - var clients = {}; io.on('connection', function (socket) { socket.emit('connection', "Connection Created."); socket.on('send notification', function (sent_to)

WebRTC中的信令和内网穿透技术 STUN / TURN

由 霸气de小男生 提交于 2020-05-08 15:27:37
转自：https://blog.csdn.net/shaosunrise/article/details/83627828 Translated from WebRTC in the real world: STUN, TURN and signaling. 最近刚接触到WebRTC，网上看到这篇介绍WebRTC的文章不错，仔细读了读还算有用，分享出来能帮到一些刚入门的人也挺好的，翻译不好的地方可以直接看原文。 WebRTC可以进行P2P点对点通信，但是WebRTC仍然需要服务器： 客户端需要服务器交换一些数据来协调通信，这称之为信令。 使用服务器来应对NAT网络地址转换和防火墙。 在本文中，将介绍如何构建信令服务，以及如何使用STUN和TURN服务器来处理WebRTC在实际使用过程中的连接问题。本文还将解释WebRTC应用程序如何处理多方通话，并与诸如VoIP和PSTN（AKA电话）之类的服务进行交互。 如果您不熟悉WebRTC的基本知识，我们强烈建议您在阅读本文之前先看一下如何开始使用WebRTC。 什么是信令？ 信令用于协调通信，WebRTC应用开始通话之前，客户端需要交换一些信息（信令）： 用于打开或关闭通信的会话控制消息。 错误信息。 媒体元数据，例如编解码器和编解码器设置，带宽和媒体类型。 用于建立安全连接的的秘钥信息。 主机的IP和端口等网络信息。

Socket IO with ReactNative

由 二次信任 提交于 2020-05-02 04:12:46
问题 I try to use SocketIO in ReactNative by follow this link https://github.com/facebook/react-native/issues/4393, On IOS it work very well but Android it could not work Result Of Socket Object connected:false index.android.js window.navigator.userAgent = 'react-native';//'react-native'; const io = require('socket.io-client/socket.io'); export default class testApp extends Component { componentWillMount(){ this.socket = io.connect('http://localhost:3000', { jsonp: false, transports: ['websocket']

Socket IO with ReactNative

由 ╄→гoц情女王★ 提交于 2020-05-02 04:12:12
问题 I try to use SocketIO in ReactNative by follow this link https://github.com/facebook/react-native/issues/4393, On IOS it work very well but Android it could not work Result Of Socket Object connected:false index.android.js window.navigator.userAgent = 'react-native';//'react-native'; const io = require('socket.io-client/socket.io'); export default class testApp extends Component { componentWillMount(){ this.socket = io.connect('http://localhost:3000', { jsonp: false, transports: ['websocket']
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