Add example for webhook

examples/webhook.py

@@ -0,0 +1,82 @@
+import logging
+from os import getenv
+
+from aiohttp.web import run_app
+from aiohttp.web_app import Application
+
+from aiogram.webhook.aiohttp_server import SimpleRequestHandler, setup_application
+from aiogram import Dispatcher, Router, Bot, types, F
+from aiogram.methods import SendMessage
+
+
+TELEGRAM_TOKEN = getenv("TELEGRAM_TOKEN")
+
+# Webhook settings
+WEBHOOK_HOST = getenv("WEBHOOK_HOST", "https://your.domain")
+WEBHOOK_PATH = getenv("WEBHOOK_PATH", "/path/to/api")
+WEBHOOK_URL = f"{WEBHOOK_HOST}{WEBHOOK_PATH}"
+
+# Webserver settings
+WEBAPP_HOST = getenv("WEBAPP_HOST", "localhost")  # or ip
+WEBAPP_PORT = getenv("WEBAPP_PORT", 3001)
+
+
+router = Router()
+
+
+@router.message(F.text)
+async def echo(message: types.Message):
+    # Regular request, add bot: Bot to handler kwargs
+    # await bot.send_message(message.chat.id, message.text)
+
+    # or reply INTO webhook
+    return SendMessage(chat_id=message.chat.id, text=message.text)
+
+
+@router.startup()
+async def on_startup(bot: Bot, webhook_url: str):
+    await bot.set_webhook(webhook_url)
+
+
+@router.shutdown()
+async def on_shutdown(bot: Bot, dispatcher: Dispatcher):
+    logging.warning("Shutting down..")
+
+    # Insert code here to run it before shutdown
+
+    # Remove webhook (not acceptable in some cases)
+    await bot.delete_webhook()
+
+    # Close DB connection (if used)
+    await dispatcher.storage.close()
+    # Close bot session
+    await bot.session.close()
+
+    logging.warning("Bye!")
+
+
+def main():
+    bot = Bot(token=TELEGRAM_TOKEN, parse_mode="HTML")
+
+    dispatcher = Dispatcher()
+    dispatcher["webhook_url"] = WEBHOOK_URL
+    dispatcher.include_router(router)
+
+    app = Application()
+    app["bot"] = bot
+
+    # Skip updates
+    # bot.delete_webhook()
+
+    SimpleRequestHandler(
+        dispatcher=dispatcher,
+        bot=bot,
+    ).register(app, path=WEBHOOK_PATH)
+    setup_application(app, dispatcher, bot=bot)
+
+    run_app(app, host=WEBAPP_HOST, port=WEBAPP_PORT)
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.INFO)
+    main()