What is a Telegram bot?

Bots are simply Telegram accounts operated by software – not people – and they'll often have AI features. They can do anything – teach, play, search, broadcast, remind, connect, integrate with other services, or even pass commands to the Internet of Things.

Telebot examples

What we want to do?

Gamer help assistance

MINECRAFT

Server status notifications

Joining admin group

Get group code

>> https://api.telegram.org/bot<bot_token>/getUpdates

Let's start coding...

from django.conf import settings
from django.db.models.signals import post_save
from ourdjango.blog.models import Article

import telebot

def send_telebot_msg(sender,instance,**kwargs):
    if kwargs['created']:
        tb = telebot.TeleBot(settings.TELEBOT_TOKEN)
        message = '[New article]\n%sadmin/blog/article/%s' % (settings.HOST,instance.id)
        tb.send_message(settings.EDITOR_CHAT_ID, message)

post_save.connect(send_telebot_msg, sender=Article)

Telebot daemon

from django.core.management.base import BaseCommand
from django.conf import settings

import telebot

from daemon_command import DaemonCommand

def start_telebot():

    tb = telebot.TeleBot(settings.TELEBOT_TOKEN)   
    
    @tb.message_handler(commands=['hello',])
    def command_list(message):
        text = message.text
        if 'hello' in text:
            tb.send_message(message.chat.id, "Hello %s!" % (message.from_user.first_name))

    tb.polling()

class Command(DaemonCommand):

    STDOUT = '../log/telebot.err'
    STDERR = STDOUT
    
    def loop_callback(self):
        start_telebot()
        time.sleep(2.5)       

Running the bot daemon

$ ./bin/django telebot_script --start

More complex bots

from django.core.management.base import BaseCommand
from django_simple_forum.models import Category, Forum, Topic, Post
from gamerauntsia.gamer.models import GamerUser
from django.conf import settings
import telebot
import time
import re
from daemon_command import DaemonCommand

COMMANDS = (
    ('kaixo', 'Kaixo mundua!'),
    ('kodea', 'Zure Game Erauntsiko profilarekin lotzeko kodea'),
    ('foroa', 'Foroko aurkibidea ikusteko'),
    ('laguntza', 'Laguntzeko prest naukazu!'),
)

def start_telebot():

    tb = telebot.TeleBot(settings.TELEBOT_TOKEN)

    @tb.message_handler(func=lambda message: '#' in message.text)
    def command_hashtag(message):
        hashtag = re.findall(r"(?i)\#\w+", message.text)[0]
        try:
            topic_id = int(hashtag.replace("#GE",""))
            topic = Topic.objects.get(id=topic_id)
            text = message.text.replace(hashtag,"").replace("@ge_bot","").strip()

            if message.from_user.id and GamerUser.objects.filter(telegram_id=message.from_user.id).exists():
                user = GamerUser.objects.get(telegram_id=message.from_user.id)
                post_title = topic.title
                if topic.last_post():
                    post_title = 'Re: ' + topic.last_post().title.replace('Re: ','')

                post = Post()
                post.topic = topic
                post.title = post_title
                post.body = text
                post.creator = user
                post.telegram_id = str(message.from_user.id)
                post.save()

                tb.send_message(message.chat.id, u"Aupa %s! Mezua jasota \U0001F44D" % (message.from_user.first_name))
            else:
                tb.send_message(message.chat.id, u"Barkatu... nor zara? \U0001F605\nKonfiguratu zure Telegram /kodea eta saiatu berriz!")

        except:
            tb.send_message(message.chat.id, u"Barkatu %s, ez dut zure mezua ulertu \U0001F62D" % (message.from_user.first_name))

    @tb.message_handler(commands=['kaixo', 'foroa', 'kodea', 'laguntza'])
    def command_list(message):
        text = message.text
        if 'kaixo' in text:
            tb.send_message(message.chat.id, "Kaixo %s!" % (message.from_user.first_name))
        elif 'foroa' in text:
            msg = 'Gaia zuzenean bilatzeko:\n /foroa -bilatu <bilaketa>\n\n'
            msg += 'Gaien traolak jakiteko:\n /foroa -k <kategoria> -f <foroa>\n\n'
            if '-bilatu' in text:
                msg = 'Bilaketa emaitza:\n'
                find = text[text.find('-bilatu')+8:].strip()
                if not len(find)<3:
                    topics = "\n".join('#GE'+str(t.id)+' - '+t.title for t in Topic.objects.filter(title__icontains=find).order_by('title'))
                    msg += topics or 'Ez da ezer aurkitu...'
                else:
                    msg = 'Mesedez, sartu 3 hizkitik gorako bilaketa!'
            elif not '-k' in text and not '-f' in text:
                msg += 'Kategoriak:\n'
                categories = "\n".join('#'+c.title.replace(' ','_') for c in Category.objects.all().order_by('title'))
                msg += categories or 'Ez da ezer aurkitu...'
            elif '-k' in text  and not '-f' in text:
                msg += 'Foroak:\n'
                cat = text[text.find('-k')+3:].replace('#','').replace('_',' ').strip()
                forums = "\n".join('#'+f.title.replace(' ','_') for f in Forum.objects.filter(category__title=cat).order_by('title'))
                msg += forums or 'Ez da ezer aurkitu...'
            elif '-f' in text:
                msg = 'Gaiak:\n'
                foru = text[text.find('-f')+3:].replace('#','').replace('_',' ').strip()
                topics = "\n".join('#GE'+str(t.id)+' - '+t.title for t in Topic.objects.filter(forums__title=foru).order_by('title'))
                msg += topics or 'Ez da ezer aurkitu...'
            else:
                msg = 'Komando okerra! Saiatu berriz...'
            tb.send_message(message.chat.id, msg)
        elif 'kodea' in text:
            if message.chat.id < 0:
                tb.send_message(message.chat.id, "Mesedez %s, eskatu zure kodea niri zuzenean. Ez erabili taldeak horretarako" % (message.from_user.first_name))
            else:
                tb.send_message(message.chat.id, "Zure kodea: %d\n\nGorde zenbaki hau zure Game Erauntsiko profilean" % (message.from_user.id))
        else:
            cmd_lst = ''
            for cmd in COMMANDS:
                cmd_lst += "/%s - %s\n" % (cmd[0],cmd[1])
            tb.send_message(message.chat.id, "Komando zerrenda:\n"+cmd_lst)

    #Use none_stop flag let polling will not stop when get new message occur error.
    tb.polling()
    # Interval setup. Sleep 3 secs between request new message.
    #tb.polling(interval=3)

class Command(DaemonCommand):

    STDOUT = '../log/telebot.err'
    STDERR = STDOUT
    
    def loop_callback(self):
        start_telebot()
        time.sleep(2.5)        

Try it yourself