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 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!