public HelloBotProperties(IConfiguration configuration) { var telegram = configuration.GetSection("Telegram"); // JSON: "Telegram" var botToken = telegram["BotToken"]; // ENV: Telegram__BotToken, JSON: "Telegram:BotToken" Api = new BotClient(botToken); User = Api.GetMe(); _commandHelper = new BotCommandHelper(this); // Delete my old commands Api.DeleteMyCommands(); // Set my commands Api.SetMyCommands( new BotCommand("hello", "Hello world!")); // Delete webhook to use Long Polling Api.DeleteWebhook(); }