So the thought is that a user A replies to a post in a chat from user B using a command /command. How can we get the contents of the message (of user B)?
Like, we get an Update update and I can do
String messageText = update.getMessage().getText(); // what user A sent aka "\command" string
long messageId = update.getMessage().getMessageId();
But what commands do I use to get the message of user B which is technically inside update, right?
As per Telegram docs, Message object received in an Update will contain reply_to_message field if the message was sent as a reply to a previous message. The reply_to_message is of type Message as well, so you can get its text and ID the usual way (via getText and getMessageID).
I am not sure how this would be done in java (I guess by simple getReplyToMessage), this is how I would handle it in javascript.
const update = req.body;
const message = update.message || update.edited_message;
if (message.reply_to_message) {
// this means message was a reply to a previous message
const previousMessageID = message.reply_to_message.message_id;
const previousMessageText = message.reply_to_message.text;
...
}