Todoistbot-basic-class.py

import configparser
from telegram import InlineKeyboardButton, InlineKeyboardMarkup
from telegram.ext import Updater, MessageHandler, CommandHandler, CallbackQueryHandler, Filters
from APIHandler import APIHandler


class TodoistBot:
    def __init__(self):
        # Read Configs from file
        config = configparser.ConfigParser()
        config.read("config.ini")

        # set Telegram bot token
        bot_token = config['telegram']['bot_token']
        # set Todoist API token
        api_token = config['todoist']['api_token']
        # set Todoist API URL
        api_url = config['todoist']['api_url']

        # initiate a Telegram updater instance
        self.updater = Updater(bot_token)

        # initiate a Todoist API handler
        self.api = APIHandler(api_token, api_url)

    def projects(self, bot, update):
        chat_id = update.message.chat_id
        project_list = self.api.get_project_list()

        keyboard = []
        for project in project_list:
            keyboard.append(
                [InlineKeyboardButton(project['name'], callback_data=project['id'])])

        reply_markup = InlineKeyboardMarkup(keyboard)
        bot.send_message(chat_id=chat_id, text="Choose a Project to see tasks list", reply_markup=reply_markup)

    def main(self):
        updater = self.updater
        dp = updater.dispatcher

        # Add command handlers
        dp.add_handler(CommandHandler('projects', self.projects))

        updater.start_polling()
        updater.idle()