Chatterbot Flask Telegram Code Example

Example: telegram chat bot using flask

import re from flask import Flask, request import telegram from telebot.credentials import bot_token, bot_user_name,URL   global bot global TOKEN TOKEN = bot_token bot = telegram.Bot(token=TOKEN)  app = Flask(__name__)  @app.route('/{}'.format(TOKEN), methods=['POST']) def respond():    # retrieve the message in JSON and then transform it to Telegram object    update = telegram.Update.de_json(request.get_json(force=True), bot)     chat_id = update.message.chat.id    msg_id = update.message.message_id     # Telegram understands UTF-8, so encode text for unicode compatibility    text = update.message.text.encode('utf-8').decode()    # for debugging purposes only    print("got text message :", text)    # the first time you chat with the bot AKA the welcoming message    if text == "/start":        # print the welcoming message        bot_welcome = """        Welcome to coolAvatar bot, the bot is using the service from http://avatars.adorable.io/ to generate cool looking avatars based on the name you enter so please enter a name and the bot will reply with an avatar for your name.        """        # send the welcoming message        bot.sendMessage(chat_id=chat_id, text=bot_welcome, reply_to_message_id=msg_id)      else:        try:            # clear the message we got from any non alphabets            text = re.sub(r"\W", "_", text)            # create the api link for the avatar based on http://avatars.adorable.io/            url = "https://api.adorable.io/avatars/285/{}.png".format(text.strip())            # reply with a photo to the name the user sent,            # note that you can send photos by url and telegram will fetch it for you            bot.sendPhoto(chat_id=chat_id, photo=url, reply_to_message_id=msg_id)        except Exception:            # if things went wrong            bot.sendMessage(chat_id=chat_id, text="There was a problem in the name you used, please enter different name", reply_to_message_id=msg_id)     return 'ok'  @app.route('/set_webhook', methods=['GET', 'POST']) def set_webhook():    s = bot.setWebhook('{URL}{HOOK}'.format(URL=URL, HOOK=TOKEN))    if s:        return "webhook setup ok"    else:        return "webhook setup failed"  @app.route('/') def index():    return '.'   if __name__ == '__main__':    app.run(threaded=True)