chat-server | A simple chat server using Flask , SocketIO and ReactJS | Socket library

I'm trying to build my project that uses boost beast library with cmake. When I use only boost asio library everything builds okay. But when I add boost/beast/http.hpp header when cmake gives a huge amount of errors.

CMake file:

I am working with Akka at the moment I have the following protocol.

In my protocol I have a server that is only responsible for creating resources (room and gabblers). These resources are created and then accessed. Next, I would like by means of a key to find the corresponding Gabbler ActorRef to send a message but this time from a class that exposes an API / method that is not an actor. I have seen the documentation and it is incredible to me that there is not a method in the actor system that can return a specific actor from its hierarchy to use it. I have already read the Receptionist section and although it is not very clear to me, I see that it is again oriented to the actors. There is no method in Akka that returns the reference based on the path of the Actor?

I am new to socket.io and node.js I refered some online documents and created a socket server, it was working fine, but now it shows so many errors, Since I don't know socket.io and node.js I am unable to rectify the problem.

I am receiving the following error in my server side

/home/sitename/public_html/chat-server/node_modules/socket.io/lib/namespace.js:119 fns[i](socket, function(err){ ^ TypeError: Property '0' of object [object Object] is not a function at run (/home/sitename/public_html/chat-server/node_modules/socket.io/lib/namespace.js:119:11) at Namespace.run (/home/sitename/public_html/chat-server/node_modules/socket.io/lib/namespace.js:131:3) at Namespace.add (/home/sitename/public_html/chat-server/node_modules/socket.io/lib/namespace.js:160:8) at Client.connect (/home/sitename/public_html/chat-server/node_modules/socket.io/lib/client.js:76:20) at Server.onconnection (/home/sitename/public_html/chat-server/node_modules/socket.io/lib/index.js:367:10) at Server.EventEmitter.emit (events.js:95:17) at Server.handshake (/home/sitename/public_html/chat-server/node_modules/engine.io/lib/server.js:310:8) at Server.onWebSocket (/home/sitename/public_html/chat-server/node_modules/engine.io/lib/server.js:392:10) at /home/sitename/public_html/chat-server/node_modules/engine.io/lib/server.js:335:12 at completeHybiUpgrade2 (/home/sitename/public_html/chat-server/node_modules/ws/lib/WebSocketServer.js:284:5)

and in the client side I am receiving the following error

GET https://sitename/socket.io/?EIO=3&transport=polling&t=1483766845342-50

and

WebSocket connection to 'wss://sitename:3000/socket.io/?EIO=3&transport=websocket' failed: Error in connection establishment: net::ERR_CONNECTION_REFUSED

client side code

I am running a Ratchet WebSocket for PHP (http://socketo.me/). It works fine at my localhost (WAMP), I have to run it via command line php chat-server.php and it works well. I have uploaded the website on a cloud based VPS, now I have to log into the VPS with the help of Putty on my laptop and then I run the same command again it works fine, as it starts listening to a opened port and sends out responses to the clients connected with that port. My issue is, as soon my laptop is offline the chat-server.php does not work anymore, it does not listen to the port and neither does it give out responses. My question is what could be a descent way to run chat-server.php so that even when the putty terminal (laptop) is offline it may still work. Any help is highly appreciated.

I have a simple flask app running on port 5000 inside the container , and i'm trying to add nginx load balance to scale the app(3 instances)

Here is my docker-compose file :

Hy,

Well i got some problem with my Dockerfile, in fact i try to install snapd on debian and ubuntu in almost all version.

when i try to launch a command i got this error

"error: cannot communicate with server: Post http://localhost/v2/snaps/rocketchat-server: dial unix /run/snapd.socket: connect: no such file or directory"

So i tried to see if the service is enabled, and there is no service called snapd, even if i try to start with systemctl "systemctl start snapd", i have an error "Failed to connect to bus: No such file or directory" so i installed dbus, and when i try again now i have this error

"Failed to start snapd.service: Launch helper exited with unknown return code 1"

I tried to start the service with service or journalctl and it show "snapd: unrecognized service"

when i list all my services i have this " [ - ] apparmor

[ - ] bootmisc.sh

[ - ] checkfs.sh

[ - ] checkroot-bootclean.sh

[ - ] checkroot.sh

[ + ] dbus

[ - ] hostname.sh

[ ? ] hwclock.sh

[ - ] killprocs

[ - ] mountall-bootclean.sh

[ - ] mountall.sh

[ - ] mountdevsubfs.sh

[ - ] mountkernfs.sh

[ - ] mountnfs-bootclean.sh

[ - ] mountnfs.sh

[ ? ] ondemand

[ - ] procps

[ - ] rc.local

[ - ] sendsigs

[ + ] udev

[ - ] umountfs

[ - ] umountnfs.sh

[ - ] umountroot

[ - ] urandom

"

According to Microsoft's tutorial, I send a message in the hub.

i installed a package via npm in angular(last version) that uses some libs like "fs,stream,.."

when i run ng serve it shows many errors like:

On my Java Chatserver users can change their username by using backspaces infront of their message.

I am currently coding a chat-server and client in Java. It works really well but I have the annoying 'bug', that the users can send messages without their username by using backspaces infront of their messages because telnet or the used BufferedReader-InputStream is saving backspaces in the message-string.

I tried to replace backspaces which made it impossible for users to change spelling mistakes.

I don't know what I should try next.

Example: Test>[10 backspaces]This is a test. The others are getting the message This is a test. but the actual message should be Test:This is a test.