Implemented basic chat server

ChatServer.sln

+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29409.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ChatServer", "ChatServer\ChatServer.csproj", "{8ADEEE9C-D236-4AB9-AADA-A0BC3BBDE334}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8ADEEE9C-D236-4AB9-AADA-A0BC3BBDE334}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8ADEEE9C-D236-4AB9-AADA-A0BC3BBDE334}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8ADEEE9C-D236-4AB9-AADA-A0BC3BBDE334}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8ADEEE9C-D236-4AB9-AADA-A0BC3BBDE334}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {73464EFF-BC95-4127-9D23-3945E404A254}
+	EndGlobalSection
+EndGlobal

ChatServer/ChatServer.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>

ChatServer/Server.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Net.Sockets;
+
+namespace ChatServer
+{
+    public class Server
+    {
+        static void Main(string[] args)
+        {
+            // Set the TcpListener to port and local adress.
+            Int32 port = 1200;
+            System.Net.IPAddress localAddress = System.Net.IPAddress.Parse("127.0.0.1");
+
+            TcpListener server = new TcpListener(localAddress, port);
+            int requestCount = 0;
+            TcpClient client = default;
+
+            // start server
+            server.Start();
+            Console.WriteLine(" $ Server running...");
+            client = server.AcceptTcpClient();
+            Console.WriteLine(" $ Client connected...");
+            requestCount = 0;
+            
+            // waiting on request
+            while ((true))
+            {
+                try
+                {
+                    // counting requests in private member
+                    requestCount += 1;
+
+                    // get stream and read, retrieve message content without $
+                    NetworkStream networkStream = client.GetStream();
+                    byte[] bytesFrom = new byte[65536];
+                    networkStream.Read(bytesFrom, 0, client.ReceiveBufferSize);
+                    string dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
+                    dataFromClient = dataFromClient.Substring(0, dataFromClient.IndexOf("$"));
+
+                    // print to server console
+                    Console.WriteLine(" $ Received a message from client in request " + requestCount.ToString() + " with content: " + dataFromClient);
+                    
+                    // send response
+                    string response = "Message " + requestCount.ToString() + " from client with content: " + dataFromClient;
+                    Byte[] sendBytes = Encoding.ASCII.GetBytes(response);
+                    networkStream.Write(sendBytes, 0, sendBytes.Length);
+                    networkStream.Flush();
+
+                    // print to server console
+                    Console.WriteLine(" $ " + response);
+                }
+                catch (Exception ex)
+                {
+                    Console.WriteLine(ex.ToString());
+                }
+            }
+
+            client.Close();
+            server.Stop();
+            Console.WriteLine(" $ exit");
+            Console.ReadLine();
+        }
+        
+    }
+}
\ No newline at end of file