C# client library for building Telegram bot (https://core.telegram.org/bots/api)

Contains strongly-types request and response classes, and transport class for sending requests and receiving results.

var bot = new TelegramBot(accessToken);
var me = await bot.MakeRequestAsync(new GetMe());
if (me != null)
{
   Console.WriteLine("Me: {0} (@{1})", me.FirstName, me.Username);
}

See TelegramBotDemo project for more samples.

Install as nuget package:

Install-Package NetTelegramBotApi

Dependencies: Newtonsoft.Json

• Changes in Telegram API defined as August 29, 2015 implemented (issue #19):
• Added support for uploading certificates in SetWebhook
• Changes in Telegram API defined as September 7, 2015 implemented (issue #20):
• Added ParseMode field to SendMessage request for simple markdown markup (see FAQ for details)
• Changes in Telegram API defined as September 18, 2015 implemented (issue #21):
• Bots can now download files and media sent by users, use GetFile request and File object (run demo project and send him a picture!)
• Proxy support added:
• Use WebProxy property when creating bot (see issue #22 for sample)

Project converted to Visual Studio 2015 and new project type (xproj).

NuGet package now targets multiple runtimes: net45, dnx45, dnx50 and dnxcore50.

New demo console app added (TelegramBotDemo-vNext) for testing under dnx451 runtime. Old demo app ('classic' console project) also available, but Attention! Now it grabs package from nuget! (because old-style .csproj can't reference new .xproj assemblies directly).

Changes in Telegram API defined as August 15, 2015 implemented (issue #13).

All real changes were already implemented in 3.5.50816, only some documenation/comments are updated in this version.

• Changes in Telegram API defined as July 2015 implemented (issue #7):
• The Caption field has been removed from the Video object and added to the Message object instead.
• Caption and Duration optional fields have been added to the SendVideo request.
• UserId type in the Contact object changed to Long (was String - typo in API docs)
• Changes, not [yet?] announced in Telegram API changlog:
• Performer and Title optional fields have been added to Audio object
• Duration, Performer and Title optional fields have been added to the SendAudio request
• Object Voice added (to Message class)
• SendVoice request added

Improvements for working via webhooks:

• SetWebhook request added (Issue #3)
• DeserializeUpdate method added to convert webhook POST json value to Update object

Fixed issue #6 with sending files with non-latin characters in name.

Message properties Date and ForwardDate are now DateTimeOffset (converted to local time).

Methods for sending files (SendPhoto, SendVideo, etc) implemented.

Switched to HttpClient (instead of HttpRequest):

• no more System.Web dependency;
• MakeRequest method is now async only, use .Result or .Wait() for synchronous calls

Refactored to new request model - base RequestBase class and one (and one async) MakeRequest method.

Major version increased to "2", patch version set to current date.

Response class hierarchy (Types), first requests. It works!