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pyTelegramBotAPI/examples/asynchronous_telebot/middleware/i18n.py
2021-12-04 21:11:51 +05:00

49 lines
1.4 KiB
Python

#!/usr/bin/python
# This example shows how to implement i18n (internationalization) l10n (localization) to create
# multi-language bots with middleware handler.
#
# Also, you could check language code in handler itself too.
# But this example just to show the work of middlewares.
import telebot
from telebot.async_telebot import AsyncTeleBot
from telebot import asyncio_handler_backends
import logging
logger = telebot.logger
telebot.logger.setLevel(logging.DEBUG) # Outputs debug messages to console.
TRANSLATIONS = {
'hello': {
'en': 'hello',
'ru': 'привет',
'uz': 'salom'
}
}
bot = AsyncTeleBot('TOKEN')
class LanguageMiddleware(asyncio_handler_backends.BaseMiddleware):
def __init__(self):
self.update_types = ['message'] # Update types that will be handled by this middleware.
async def pre_process(self, message, data):
data['response'] = TRANSLATIONS['hello'][message.from_user.language_code]
async def post_process(self, message, data, exception):
if exception: # You can get exception occured in handler.
logger.exception(str(exception))
bot.setup_middleware(LanguageMiddleware()) # do not forget to setup
@bot.message_handler(commands=['start'])
async def start(message, data: dict):
# you can get the data in handler too.
# Not necessary to create data parameter in handler function.
await bot.send_message(message.chat.id, data['response'])
bot.polling()