Core logic ported from TS: HttpClientFactory, Environment and WebSocketHandler.

Chtn.CSharp.SDK.csproj

@@ -4,4 +4,9 @@
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
+  </ItemGroup>
+
 </Project>

Chtn.CSharp.SDK.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 18
+VisualStudioVersion = 18.4.11626.88 stable
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Chtn.CSharp.SDK", "Chtn.CSharp.SDK.csproj", "{CE1ED0A8-C1D4-A4F2-A1F7-46A18938BB73}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{CE1ED0A8-C1D4-A4F2-A1F7-46A18938BB73}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CE1ED0A8-C1D4-A4F2-A1F7-46A18938BB73}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CE1ED0A8-C1D4-A4F2-A1F7-46A18938BB73}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CE1ED0A8-C1D4-A4F2-A1F7-46A18938BB73}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {DC9BA064-42F5-45F7-BC3F-89938B9904F8}
+	EndGlobalSection
+EndGlobal

Core/ChateniumClient.cs

@@ -1,6 +1,9 @@
-using Chtn.CSharpSDK.Interfaces;
+using System;
-using System.Net.Http;
+using System.Globalization;
-using System;
+using System.Net.WebSockets;
+using System.Threading.Tasks;
+using Chtn.CSharpSDK.Interfaces;
+
 
 namespace Chtn.CSharpSDK.Core
 {
@@ -8,15 +11,17 @@ namespace Chtn.CSharpSDK.Core
     {
         private readonly IKeyringAPI _keyring;
         private readonly IDatabaseAPI _database;
-        private readonly HttpClient _httpClient;
+        private readonly WebSocketHandler _wsHandler;
 
         public ChateniumClient(IKeyringAPI keyring, IDatabaseAPI database)
         {
             _keyring = keyring ?? throw new ArgumentNullException(nameof(keyring));
             _database = database ?? throw new ArgumentNullException(nameof(database));
-
+            _wsHandler = WebSocketHandler.GetInstance();
-            _httpClient = new HttpClient();
+        }
-            _httpClient.BaseAddress = new Uri("https://api.chatenium.hu");
+        public async Task ConnectAsync(string userId, string token)
+        {
+            await _wsHandler.ConnectAsync(userId, token);
         }
         public void initialize()
         {

Core/EnvironmentConfig.cs

@@ -0,0 +1,15 @@
+namespace Chtn.CSharp.SDK.Core
+{
+    public class SDKConfig
+        {
+        public string ApiUrl { get; set; } = "https://api.chatenium.hu";
+        public string CdnUrl { get; set; } = "https://cdn.chatenium.hu";
+        public string WsUrl { get; set; } = "wss://api.chatenium.hu";
+    }
+
+    public static class EnvironmentConfig
+    {
+        private static SDKConfig _currentConfig = new SDKConfig();
+        public static SDKConfig Get() => _currentConfig; 
+    }
+}

Core/HttpClientFactory.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Net.Http;
+
+namespace Chtn.CSharp.SDK.Core
+{
+    public static  class HttpClientFactory
+    {
+        public static HttpClient CreateClient(bool isCdn = false)
+        {
+            var env = EnvironmentConfig.Get();
+            return new HttpClient
+            {
+                BaseAddress = new Uri(isCdn ? env.CdnUrl : env.ApiUrl),
+                Timeout = TimeSpan.FromSeconds(5)
+            };
+
+        }
+    }
+}

Core/WebSocketHandler.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Net.WebSockets;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using System.Net.Http.Headers;
+using Chtn.CSharpSDK.Interfaces;
+using Chtn.CSharp.SDK.Core;
+
+namespace Chtn.CSharpSDK.Core
+{
+    public class WebSocketHandler
+    {
+        private static WebSocketHandler _instance;
+        private ClientWebSocket _webSocket;
+        private string _connectionId;
+
+        public static WebSocketHandler GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new WebSocketHandler();
+            }
+            return _instance;
+        }
+
+        public async Task ConnectAsync(string userId, string token)
+        {
+            var client = HttpClientFactory.CreateClient();
+            client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(token);
+
+            try
+            {
+                var response = await client.PostAsync("v2/ws/makeToken",
+                    new StringContent(JsonConvert.SerializeObject(new { userid = userId }), Encoding.UTF8, "application/json"));
+
+                var content = await response.Content.ReadAsStringAsync();
+                var authData = JsonConvert.DeserializeObject<dynamic>(content);
+
+                string wsUrl = $"{EnvironmentConfig.Get().WsUrl}/vs/ws?userid={userId}&access_token={authData.token}";
+
+                _webSocket = new ClientWebSocket();
+                await _webSocket.ConnectAsync(new Uri(wsUrl), CancellationToken.None);
+
+                Console.WriteLine("Connected to websocket successfully");
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Websocket hiba: {ex.Message}");
+            }
+        }
+    }
+}