How to get a message from Telegram groups by API?

Question

I was looking for some way to listen and catch new messages provided by telegram groups.

I have not found libraries or API in order to do this in Python.

Someone having any suggestion?

Atonsah

Answer 1

There are two ways to achieve your goal:

Method 1:

My suggested library for python: python-telegram-bot

1. Create a bot.
2. Add the bot to the desired group as administrator.
3. Listen to messages as you normally listen in bots.

Method 2:

My suggested library for python: Telethon

1. Join the desired group as a user (not a bot).
2. Create a simple client that listens to new messages.

Retain

Add the bot to the desired group as administrator. What if group isn't own by us? – Untaught

@Untaught turn off privacy setting from the bot and it should listen to messages normally. – Endoparasite

dude i have an issue to read the content protected channel and i can't grab the text of post , i don't know how to solve it ... – Indictable

Answer 2

Using Telethon

Replace channel_name with your telegram channel.

from telethon import TelegramClient, events, sync

# Remember to use your own values from my.telegram.org!
api_id = ...
api_hash = '...'
client = TelegramClient('anon', api_id, api_hash)

@client.on(events.NewMessage(chats='channel_name'))
async def my_event_handler(event):
    print(event.raw_text)

client.start()
client.run_until_disconnected()

Able

Can you please provide the specific question you are asking, or where you are getting stuck? – Calculating

Sorry, but I don't understand your question. This is an example of how using Telethon I can listen and catch new message of a specific group. – Able

How to bypass this - Please enter your phone (or bot token): – Ralaigh

I am unable to use this approach to access multiple groups. Say if I want to receive messages from multiple groups or channels. – Heeley

Add the bot to the desired group as administrator. – Untaught