1#!/usr/bin/env python
2# pylint: disable=unused-argument,import-error
3# This program is dedicated to the public domain under the CC0 license.
4
5"""
6Simple example of a Telegram WebApp which displays a color picker.
7The static website for this website is hosted by the PTB team for your convenience.
8Currently only showcases starting the WebApp via a KeyboardButton, as all other methods would
9require a bot token.
10"""
11import json
12import logging
13
14from telegram import KeyboardButton, ReplyKeyboardMarkup, ReplyKeyboardRemove, Update, WebAppInfo
15from telegram.ext import Application, CommandHandler, ContextTypes, MessageHandler, filters
16
17# Enable logging
18logging.basicConfig(
19 format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO
20)
21# set higher logging level for httpx to avoid all GET and POST requests being logged
22logging.getLogger("httpx").setLevel(logging.WARNING)
23
24logger = logging.getLogger(__name__)
25
26
27# Define a `/start` command handler.
28async def start(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
29 """Send a message with a button that opens a the web app."""
30 await update.message.reply_text(
31 "Please press the button below to choose a color via the WebApp.",
32 reply_markup=ReplyKeyboardMarkup.from_button(
33 KeyboardButton(
34 text="Open the color picker!",
35 web_app=WebAppInfo(url="https://python-telegram-bot.org/static/webappbot"),
36 )
37 ),
38 )
39
40
41# Handle incoming WebAppData
42async def web_app_data(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
43 """Print the received data and remove the button."""
44 # Here we use `json.loads`, since the WebApp sends the data JSON serialized string
45 # (see webappbot.html)
46 data = json.loads(update.effective_message.web_app_data.data)
47 await update.message.reply_html(
48 text=f"You selected the color with the HEX value <code>{data['hex']}</code>. The "
49 f"corresponding RGB value is <code>{tuple(data['rgb'].values())}</code>.",
50 reply_markup=ReplyKeyboardRemove(),
51 )
52
53
54def main() -> None:
55 """Start the bot."""
56 # Create the Application and pass it your bot's token.
57 application = Application.builder().token("TOKEN").build()
58
59 application.add_handler(CommandHandler("start", start))
60 application.add_handler(MessageHandler(filters.StatusUpdate.WEB_APP_DATA, web_app_data))
61
62 # Run the bot until the user presses Ctrl-C
63 application.run_polling(allowed_updates=Update.ALL_TYPES)
64
65
66if __name__ == "__main__":
67 main()