websocket

Spring reactive ReactorNettyWebSocketClient not logging anything

生来就可爱ヽ(ⅴ<●) 提交于 2021-02-08 09:36:13
问题 I've created a simple demo application to familiarize myself with the new WebSocketClient. I found a tutorial at: https://stackify.com/reactive-spring-5/ (Reactive WebSocket Clients): @Bean CommandLineRunner demo() { return args -> { Flux<String> input = Flux.<String>generate(sink -> sink.next("This is a test")) .delayElements(Duration.ofSeconds(1)); WebSocketClient client = new ReactorNettyWebSocketClient(); client.execute(new URI("ws://echo.websocket.org"), session -> session.send(input.map

How to emit message from python server to javascript client in python-socketio?

风流意气都作罢 提交于 2021-02-08 08:24:38
问题 The socketio client successfully connects to the server and sends messages with emit to the server but the other direction server to the client fails. I cannot find the source of error. It is Here is the server python in app.py based on the example in python-socketio website: from aiohttp import web import socketio sio = socketio.AsyncServer() app = web.Application() sio.attach(app) async def index(request): """Serve the client-side application.""" with open('index.html') as f: return web

How to run a websocket server on ws and wss at same time that they both communicate or sync data with each other? Or WSS on HTTP and WS on HTTPS?

早过忘川 提交于 2021-02-08 08:21:33
问题 My requirement is this that if some users connect through WS or WSS they can communicate with each other.Now if i run node server for WSS it does not run over HTTP and if run for WS then it does not Connect on HTTPS .Any solution? 回答1: After a long research at last i find this solution and is working for me as i was requiring.This is my sever.js file. /** Before running: > npm install ws Then: > node server.js > open http://localhost:8080 in the browser */ const http = require('http'); const

Configure NGINX reverse proxy with browser WebSocket and docker-compose

大兔子大兔子 提交于 2021-02-08 08:20:34
问题 I am trying to get nginx to proxy a websocket connection to a backend server. All services linked via docker-compose. When i create the WebSocket object in my frontend react app: let socket = new WebSocket(`ws://engine/socket`) I get the following error: WebSocket connection to 'ws://engine/socket' failed: Error in connection establishment: net::ERR_NAME_NOT_RESOLVED I believe the problem comes from converting ws:// to http:// and that my nginx configuration does not seem to be pick up the

Laravel + Nuxt + Nginx: WebSocket is closed before the connection is established

江枫思渺然 提交于 2021-02-08 06:38:48
问题 General scheme and project configuration files The project consists of two parts: Server part - Laravel (api) Customer part - NuxtJs (client) A minimum project configuration has been prepared for the test: Laravel Websockets packages have been installed: beyondcode/laravel-websockets: https://beyondco.de/docs/laravel-websockets/getting-started/introduction pusher/pusher-php-server: https://pusher.com/tutorials/web-notifications-laravel-pusher-channels File composer.json : ... "require": {

Why do I get [SSL: CERTIFICATE_VERIFY_FAILED] in Python when ssl setup looks OK?

有些话、适合烂在心里 提交于 2021-02-08 05:23:25
问题 I'm working on a Python app to comunicate with a service running on localhost via secure websocket protocol. Here is a sample code: import json import asyncio import websockets import ssl import certifi ssl_context = ssl.create_default_context() ssl_context.load_verify_locations(certifi.where()) ssl_context.load_default_certs() query = { "jsonrpc": "2.0", "method": "queryHeadsets", "params": {}, "id": 1 } json = json.dumps(query) async def query(json): async with websockets.connect("wss:/

What is this data at the end of WebRTC candidate info?

不问归期 提交于 2021-02-08 03:31:51
问题 I set up a basic video chat app using the WebRTC APIs in Chrome along with a WebSocket script I wrote myself following the W3C specs and other questions here on SO. Sometimes though, when one PC sends ICE candidate info to the other PC via the WebSocket connection, a bunch of garbled text is attached to the end of the JSON-stringified candidate info. This problem only happens sometimes though, and it never happens with the SDP info sent via the createOffer and createAnswer methods. Please see

“handshake error: Wrong response line” when connecting to websocket

北城以北 提交于 2021-02-07 18:20:47
问题 I'm trying to connect to a websocket with the following Perl code: use AnyEvent; use AnyEvent::WebSocket::Client 0.12; my $client = AnyEvent::WebSocket::Client->new; $client->connect("wss://example.com")->cb(sub { my $connection = eval { shift->recv }; # This line is generating the error if($@) { # handle error... warn $@; return; } # send a message through the websocket... $connection->send(''); # receive message from the websocket... $connection->on(each_message => sub { my($connection,

How to disable websocket on Shiny?

吃可爱长大的小学妹 提交于 2021-02-07 09:59:47
问题 I have a Shiny application in a Docker container hosted on Microsoft Azure WebApp. The application doesn't work anymore when log in with Azure Active Directory is activated. The application page is accessible but a error 500 is returned on websocket content as shown on the Firefox network trace. This error is not present without log in with AAD. I've tried adding the following options to /etc/shiny-server/shiny-server.conf : sanitize_errors off; disable_protocols websocket xdr-polling; This

about websocket's mask field

99封情书 提交于 2021-02-07 09:36:26
问题 about websocket protocal ,you can read the detail from here,http://tools.ietf.org/html/rfc6455#section-5.3 in the mask section ,it said: The masking key is a 32-bit value chosen at random by the client. When preparing a masked frame, the client MUST pick a fresh masking key from the set of allowed 32-bit values. The masking key needs to be unpredictable; thus, the masking key MUST be derived from a strong source of entropy, and the masking key for a given frame MUST NOT make it simple for a