Telegram.Bot.SpaceApi/Backend/TelegramBotClient.cs

using System.Security.Authentication;

namespace Telegram.Bot.SpaceApi.Backend;

using TgBot = Telegram.Bot.TelegramBotClient;

public class TelegramBotClient {
	private TgBot _bot;

	public TelegramBotClient(string token) {
		_bot = new TgBot(token);

		try {
			_ = _bot.GetMeAsync().Result;
		}
		catch {
			throw new InvalidCredentialException("Invalid bot token.");
		}
	}

	public void SendMessage(string chat, string message) {
		Console.WriteLine($"Sent message to chat {chat}. Message ID: " + _bot.SendTextMessageAsync(chat, message).Result.MessageId);
	}
}