Sends a text message to a specific number phone

Question

I got App api_id, App api_hash and Production configuration from telegram.org, I need to use from this method messages.sendMessage for Sends a text message to a specific number phone's telegram(for example: +1888888). How can I use from this method. Is there any a simple sample?

Answer 1

I suggest you using a top-layer library over MTProto to make things easier. For example you can use Telethon. You should use SendMessageRequest in order to send message. After creating a client you can call it like this (in newest version of Telethon the phone number is resolved automatically):

from telethon.tl.functions.messages import SendMessageRequest
client(SendMessageRequest('phone_number', 'hello'))

If you're using TDLib, you may use this function (taken from here) or a similar one:

private static void sendMessage(long chatId, String message) {
    // initialize reply markup just for testing
    TdApi.InlineKeyboardButton[] row = {new TdApi.InlineKeyboardButton("https://telegram.org?1", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?2", new TdApi.InlineKeyboardButtonTypeUrl()), new TdApi.InlineKeyboardButton("https://telegram.org?3", new TdApi.InlineKeyboardButtonTypeUrl())};
    TdApi.ReplyMarkup replyMarkup = new TdApi.ReplyMarkupInlineKeyboard(new TdApi.InlineKeyboardButton[][]{row, row, row});

    TdApi.InputMessageContent content = new TdApi.InputMessageText(new TdApi.FormattedText(message, null), false, true);
    client.send(new TdApi.SendMessage(chatId, 0, false, false, replyMarkup, content), defaultHandler);
}

Don't forget that, you need to add each phone number to user's Telegram contacts first to get the chatId. It can be achieved by passing an array of phone numbers to this function:

---functions---
contacts.importContacts#2c800be5 contacts:Vector<InputContact> = contacts.ImportedContacts