bot.py

import os

from flask import Flask, request

import telebot

TOKEN = '882043411:AAHbosubZ3D2us2aZPgnXMAhMGozTFWmtOc'
bot = telebot.TeleBot(TOKEN)
server = Flask(__name__)

bot = telebot.TeleBot(token=TOKEN)
server = Flask(__name__)


def findat(msg):
    # from a list of texts, it finds the one with the '@' sign
    for i in msg:
        if '@' in i:
            return i

@bot.message_handler(commands=['start']) # welcome message handler
def send_welcome(message):
    bot.reply_to(message, '(placeholder text)')

@bot.message_handler(commands=['help']) # help message handler
def send_welcome(message):
    bot.reply_to(message, 'ALPHA = FEATURES MAY NOT WORK')

@bot.message_handler(func=lambda msg: msg.text is not None and '@' in msg.text)
# lambda function finds messages with the '@' sign in them
# in case msg.text doesn't exist, the handler doesn't process it
def at_converter(message):
    texts = message.text.split()
    at_text = findat(texts)
    if at_text == '@': # in case it's just the '@', skip
        pass
    else:
        insta_link = "https://instagram.com/{}".format(at_text[1:])
        bot.reply_to(message, insta_link)

@server.route('/' + TOKEN, methods=['POST'])
def getMessage():
    bot.process_new_updates([telebot.types.Update.de_json(request.stream.read().decode("utf-8"))])
    return "!", 200


@server.route("/")
def webhook():
    bot.remove_webhook()
    bot.set_webhook(url='https://mighty-savannah-48884.herokuapp.com/' + TOKEN)
    return "!", 200


if __name__ == "__main__":
    server.run(host="0.0.0.0", port=int(os.environ.get('PORT', 5000)))