socket-server | Socket library

I am trying to create a system contains network of computers where there is a master and multiple slaves. The master device would send commands over socket and slaves would answer to the commands. I found a useful material here and it worked. I was able to send data and receive answers.

So I decided to create a class for it to have server and client objects. When I created the Server and Client objects, the client object was working fine. But the Server Object although it looks like it working but it refuses connection.

I found this answer Connect NestJS to a websocket server

Implemented my client as what you would have in the first answer. Second answer vent over my head a bit. Now I have a problem with listeners. When the socket disconnects I want to reconnect again. As you can see in the example listeners are instantiated in the constructor. When I want to reconnect those listeners are not re-instantiated and I don't know how to achieve that. Or how to instantiate listeners in some other way? Or even how to destroy that service and build a new one?

I'm having this problem with Github Actions (continues integration) where the project i made in maven doesn't succeed because the POM is referencing itself. However i have no idea how to fix this.

I have 4 modules in my project.

Pac - Parent, uses client,server,shared,UI

Client - uses shared

Server - uses client, shared

Shared - uses nothing

UI - uses client, shared

Github Actions after pushing:

I have a project build with Gradle, it's actually a Vaadin project, with a servlet where I use Jetty. At the startup (i.e gradle run) I have a lot of different warning message from AnnotationParser about duplication of classes. I copy only one because the log is quite verbose:

Similar to rsocket routing metadata using RSocket-Java for Spring Rsocket Server but for an RSocket Net Client, we use a spring boot @MessageMapping for websocket endpoint routes on port 7000 which return webfluxes depending on the route. For example:

Here is my websocket code:

I'm using microsoft graph api version 2.3.2 to upload/download the document with sharepoint.

My uploading functionality is working fine. But to download the document randomly sometime facing com.microsoft.graph.core.ClientException: Error during http request issue Caused by: java.lang.IllegalStateException: null

I'm using following code to download the document from sharepoint.

I am trying to build Boost with websocket-server-sync example from Boost Beast examples. Firstly I would like to say that I'm building on Windows 10 with MSVS 2017 Professional Version 15.3.5 with SDK version 10.0.14393.0. The steps which I took to build the Boost were following:

First I started of course bootstrap.cmd and then I run the .\b2 variant=release variant=debug link=static threading=multi address-model=64 for building static Boost libraries. Running these two steps was success.

The next step was to setup Visual Studio solution for running the Boost Beast examples. To be able to do this I needed to invoke cmake bulding system. So I created build folder in \libs\beast and ran the command cmake -G "Visual Studio 15 2017 Win64" .. which created the needed solution for Visual Studio. The cmake process was succesfull. Here the log:

I would like to implement a client handler which will receive my server callbacks. The following tutorial provides an idea of how to handle callbacks from the server in Java :