- Update layer to 23

- Start implementing get user by userName

TLSharp.Core/MTProto/TL.cs

@@ -10966,6 +10966,7 @@ namespace TLSharp.Core.MTProto
 		public override void Read(BinaryReader reader)
 		{
 			this.date = reader.ReadInt32();
+			var expires = reader.ReadInt32();
 			this.test_mode = reader.ReadUInt32() == 0x997275b5;
 			this.this_dc = reader.ReadInt32();
 			reader.ReadInt32(); // vector code

TLSharp.Core/Requests/ImportByUserName.cs

@@ -0,0 +1,35 @@
+using System;
+using System.IO;
+using TLSharp.Core.MTProto;
+
+namespace TLSharp.Core.Requests
+{
+	public class ImportByUserName : MTProtoRequest
+	{
+		private readonly string _userName;
+		public ImportByUserName(string userName)
+		{
+			_userName = userName;
+		}
+
+		public override void OnSend(BinaryWriter writer)
+		{
+			writer.Write(0xf93ccba3);
+			Serializers.String.write(writer, _userName);
+		}
+
+		public override void OnResponse(BinaryReader reader)
+		{
+			var code = reader.ReadUInt32();
+			var peer = TL.Parse<Peer>(reader);
+		}
+
+		public override void OnException(Exception exception)
+		{
+			throw new NotImplementedException();
+		}
+
+		public override bool Confirmed { get; }
+		public override bool Responded { get; }
+	}
+}

TLSharp.Core/Requests/InitConnectionRequest.cs

@@ -16,7 +16,8 @@ namespace TLSharp.Core.Requests
 
 		public override void OnSend(BinaryWriter writer)
 		{
-			writer.Write(0x1c900537); // invokeWithLayer18#1c900537
+			writer.Write(0xda9b0d0d); 
+			writer.Write(23);// invokeWithLayer23#1c900537
 			writer.Write(0x69796de9); // initConnection
 			writer.Write(_apiId); // api id
 			Serializers.String.write(writer, "WinPhone Emulator"); // device model

TLSharp.Core/TLSharp.Core.csproj

@@ -72,6 +72,7 @@
     <Compile Include="Requests\GetHistoryRequest.cs" />
     <Compile Include="Requests\GetNearestDcRequest.cs" />
     <Compile Include="Requests\GetUsersRequest.cs" />
+    <Compile Include="Requests\ImportByUserName.cs" />
     <Compile Include="Requests\ImportContactRequest.cs" />
     <Compile Include="Requests\InitConnectionRequest.cs" />
     <Compile Include="Requests\MTProtoRequest.cs" />

TLSharp.Core/TelegramClient.cs

@@ -210,6 +210,15 @@ namespace TLSharp.Core
 			return importedUser?.user_id;
 		}
 
+		public async Task<int?> ImportByUserName(string username)
+		{
+			var request = new ImportByUserName(username);
+			await _sender.Send(request);
+			await _sender.Recieve(request);
+
+			return null;
+		}
+
 		public async Task SendMessage(int id, string message)
 		{
 			var request = new SendMessageRequest(new InputPeerContactConstructor(id), message);

TLSharp.Tests/NotificatioClientTests.cs

@@ -72,6 +72,21 @@ namespace TLSharp.Tests
 			Assert.IsNotNull(res);
 		}
 
+		[TestMethod]
+		public async Task ImportByUserName()
+		{
+			var store = new FileSessionStore();
+			var client = new TelegramClient(store, "session");
+
+			await client.Connect();
+
+			Assert.IsTrue(client.IsUserAuthorized());
+
+			var res = await client.ImportByUserName(NumberToSendMessage);
+
+			Assert.IsNotNull(res);
+		}
+
 		[TestMethod]
 		public async Task SendMessage()
 		{