Grumson.Utilities.TelegramBot 1.0.2

TelegramBot Documentation

The TelegramBot is a C# library designed for my personal needs. It provides a service for interacting with the Telegram bot API. The library allows for bot initialization, sending messages, registering and unregistering events, and handling errors and received messages.

Installation

TelegramService is a class that implements a service for interacting with the Telegram bot API. The class allows for bot initialization, sending messages, registering and unregistering events, and handling errors and received messages.

Properties

• _OnMessage: Event triggered upon receiving a message.
• _OnError: Event triggered upon an error.
• _ChatList: List of chats the bot has communicated with.
• _botClient: Instance of TelegramBotClient that enables communication with the Telegram API.
• _cts: CancellationTokenSource for managing operation cancellations.
• _token: Token for bot authentication.

Constructor

• TelegramService(string token): Initializes a new instance of TelegramService with the given token.

Public Methods

• RegisterOnMessageRecivedEvent(Action<Message, UpdateType> onMessage): Registers an event for receiving messages.
• UnregisterFromMessageRecivedEvent(Action<Message, UpdateType> onMessage): Unregisters an event for receiving messages.
• RegisterOnErrorEvent(Action<Exception, HandleErrorSource> onError): Registers an event for handling errors.
• UnregisterFromErrorEvent(Action<Exception, HandleErrorSource> onError): Unregisters an event for handling errors.
• Init(): Initializes the bot and registers events for messages, errors, and updates.
• GetMyInfo(): Retrieves information about the bot.
• SendMessage(Chat chat, string message): Sends a message to a specified chat.
• SendMessage(long chatId, string message): Sends a message to a specified chat by ID.

Private Methods

• OnError(Exception exception, HandleErrorSource source): Handles errors and triggers the _OnError event.
• OnMessage(Message msg, UpdateType type): Handles received messages and triggers the _OnMessage event.
• OnUpdate(Update update): Handles other types of updates, such as callback queries.

Usage Example

using System;
using System.Threading.Tasks;
using Telegram.Bot.Types;
using Telegram.Bot.Types.Enums;

public class Program
{
    public static async Task Main(string[] args)
    {
        string token = "YOUR_TELEGRAM_BOT_TOKEN";
        TelegramService telegramService = new TelegramService(token);

        // Registering events
        telegramService.RegisterOnMessageRecivedEvent(OnMessageReceived);
        telegramService.RegisterOnErrorEvent(OnError);

        // Initialization of the bot
        var initResult = await telegramService.Init();
        Console.WriteLine(initResult.message);

        // Getting bot information
        var myInfo = await telegramService.GetMyInfo();
        Console.WriteLine(myInfo.message);

        // Sending a message
        long chatId = 123456789; // Chat ID with your bot
        var sendMessageResult = await telegramService.SendMessage(chatId, "Hello, Telegram!");
        Console.WriteLine(sendMessageResult.message);
    }

    private static void OnMessageReceived(Message message, UpdateType updateType)
    {
        Console.WriteLine($"Received message: {message.Text}");
    }

    private static void OnError(Exception exception, HandleErrorSource source)
    {
        Console.WriteLine($"Error: {exception.Message}");
    }
}

In this example, we create an instance of TelegramService, register events for receiving messages and errors, initialize the bot, retrieve bot information, and send a message to a specified chat.

Changelog

Version 1.0.2 - 2023-08-10

• Added GetChatById(long chatId) and GetAllChats() methods to ITelegramService interface.
• Implemented GetChatById(long chatId) and GetAllChats() in TelegramService class.
• Enhanced message handling in TelegramService to add new chats to _ChatList if not present.
• Updated README.md with version 1.0.2 in the changelog.

Version 1.0.1 - 2023-08-10

• Edited the README.md file

Version 1.0.0 - 2023-08-10

• Initial release of the TelegramService class.