Telegram Bot开发：如何获取机器人消息MessageID以回复自身最新消息？

Great question! Let's break this down clearly:

Do you need the bot's message ID to send "hello user" as a reply to its own message? #

Yes, absolutely. To make "hello user" appear as a direct reply to the bot's earlier "this is reply" message, you need to reference the unique message_id of that bot-sent message in your API call. Without it, the new message will just show up as a standalone message in the chat, not linked to the bot's previous one.

How to get the bot's message ID? #

Every time your bot sends a message (whether it's a reply to the user or a standalone message), the Telegram API returns a Message object that includes the message_id of the bot's outgoing message. You just need to capture this ID when you send the initial "this is reply" message, then reuse it later.

Example with Python's python-telegram-bot library #

Let's use the widely adopted python-telegram-bot v13+ (the same logic applies to other libraries too):

from telegram import Update
from telegram.ext import Updater, MessageHandler, Filters, CallbackContext

def handle_user_greeting(update: Update, context: CallbackContext):
    # User sent "hi this is a send"
    # Send the bot's first reply and capture the returned Message object
    bot_first_reply = update.message.reply_text("this is reply")
    
    # Extract the bot's message ID from the returned object
    bot_message_id = bot_first_reply.message_id
    
    # Store this ID somewhere accessible (here we use user-specific context storage)
    context.user_data["last_bot_msg_id"] = bot_message_id
    
    # Now send "hello user" as a reply to the bot's own message
    context.bot.send_message(
        chat_id=update.effective_chat.id,
        text="hello user",
        reply_to_message_id=bot_message_id  # This links the new message to the bot's earlier one
    )

def main():
    # Replace with your bot token
    updater = Updater("YOUR_TELEGRAM_BOT_TOKEN")
    dp = updater.dispatcher
    
    # Handle incoming text messages (non-commands)
    dp.add_handler(MessageHandler(Filters.text & ~Filters.command, handle_user_greeting))
    
    updater.start_polling()
    updater.idle()

if __name__ == "__main__":
    main()

If you need to send the reply later (not immediately) #

If you want to send "hello user" after a delay or another user action, just retrieve the stored message_id from where you saved it (like context.user_data, a database, or cache) and use it in the reply_to_message_id parameter.

Example of a delayed reply using python-telegram-bot's job queue:

def handle_user_greeting(update: Update, context: CallbackContext):
    bot_first_reply = update.message.reply_text("this is reply")
    bot_message_id = bot_first_reply.message_id
    context.user_data["last_bot_msg_id"] = bot_message_id
    
    # Schedule "hello user" to be sent 5 seconds later
    context.job_queue.run_once(send_follow_up_reply, 5, context=update.effective_chat.id)

def send_follow_up_reply(context: CallbackContext):
    chat_id = context.job.context
    bot_message_id = context.user_data.get("last_bot_msg_id")
    
    if bot_message_id:
        context.bot.send_message(
            chat_id=chat_id,
            text="hello user",
            reply_to_message_id=bot_message_id
        )

Quick note for other libraries #

If you're using pyTelegramBotAPI instead, the process is almost identical:

import telebot

bot = telebot.TeleBot("YOUR_TELEGRAM_BOT_TOKEN")

@bot.message_handler(func=lambda msg: msg.text == "hi this is a send")
def handle_message(message):
    # Send first reply and get the message object
    bot_reply = bot.send_message(message.chat.id, "this is reply")
    bot_message_id = bot_reply.message_id
    
    # Send follow-up reply to the bot's own message
    bot.send_message(message.chat.id, "hello user", reply_to_message_id=bot_message_id)

bot.polling()

内容的提问来源于stack exchange，提问作者mahdi