added examples of multibot

examples/asynchronous_telebot/multibot/README.MD

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+You probably have seen bots which allow you to send them token of your bot and then handle updates providing some functionality for your bot.
+<br>
+This type of bots are called <b>multibots</b>. They are created using webhooks.
+<br>
+
+This is the example of simple multibot.<br>
+In order to reproduce this example you need to have <b>domain and ssl connection</b>.
+<br>
+If you have, go to config.py and specify your data.
+<br>
+There is also file called <b>nginx_conf.conf</b>,  we will use nginx as proxy-server and this file is example nginx.conf file.
+<br>
+Make sure that server_name and port are the same in both config and nginx_conf
+<br>
+(nginx_conf.conf IS NOT complete, you would probably use tools like certbot to add ssl connection to it)
+<br>
+Also, in this example I used dictionary as tokens storage, but in production you should use database so that you can re-set webhooks in case bot restarts.

examples/asynchronous_telebot/multibot/config.py

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+MAIN_BOT_TOKEN = "your_main_bot_token"
+
+WEBHOOK_HOST = "your_domain.com"
+WEBHOOK_PATH = "telegram_webhook"
+WEBAPP_HOST = "0.0.0.0"
+WEBAPP_PORT = 3500

examples/asynchronous_telebot/multibot/handlers.py

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+from telebot.async_telebot import AsyncTeleBot
+from telebot import types
+
+
+async def hello_handler(message: types.Message, bot: AsyncTeleBot):
+    await bot.send_message(message.chat.id, "Hi :)")
+
+
+async def echo_handler(message: types.Message, bot: AsyncTeleBot):
+    await bot.send_message(message.chat.id, message.text)
+
+
+def register_handlers(bot: AsyncTeleBot):
+    bot.register_message_handler(hello_handler, func=lambda message: message.text == 'Hello', pass_bot=True)
+    bot.register_message_handler(echo_handler, pass_bot=True)

examples/asynchronous_telebot/multibot/main.py

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+import asyncio
+
+from aiohttp import web
+from telebot import types, util
+from telebot.async_telebot import AsyncTeleBot
+from handlers import register_handlers
+
+import config
+
+main_bot = AsyncTeleBot(config.MAIN_BOT_TOKEN)
+app = web.Application()
+tokens = {config.MAIN_BOT_TOKEN: True}
+
+
+async def webhook(request):
+    token = request.match_info.get('token')
+    if not tokens.get(token):
+        return web.Response(status=404)
+
+    if request.headers.get('content-type') != 'application/json':
+        return web.Response(status=403)
+
+    json_string = await request.json()
+    update = types.Update.de_json(json_string)
+    if token == main_bot.token:
+        await main_bot.process_new_updates([update])
+        return web.Response()
+
+    from_update_bot = AsyncTeleBot(token)
+    register_handlers(from_update_bot)
+    await from_update_bot.process_new_updates([update])
+    return web.Response()
+
+
+app.router.add_post("/" + config.WEBHOOK_PATH + "/{token}", webhook)
+
+
+@main_bot.message_handler(commands=['add_bot'])
+async def add_bot(message: types.Message):
+    token = util.extract_arguments(message.text)
+    tokens[token] = True
+
+    new_bot = AsyncTeleBot(token)
+    await new_bot.delete_webhook()
+    await new_bot.set_webhook(f"{config.WEBHOOK_HOST}/{config.WEBHOOK_PATH}/{token}")
+
+    await new_bot.send_message(message.chat.id, "Webhook was set.")
+
+
+async def main():
+    await main_bot.delete_webhook()
+    await main_bot.set_webhook(f"{config.WEBHOOK_HOST}/{config.WEBHOOK_PATH}/{config.MAIN_BOT_TOKEN}")
+    web.run_app(app, host=config.WEBAPP_HOST, port=config.WEBAPP_PORT)
+
+if __name__ == '__main__':
+    asyncio.run(main())

examples/asynchronous_telebot/multibot/nginx_conf.conf

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+server {
+    server_name your_domain.com;
+
+    location /telegram_webhook/ {
+        proxy_pass http://localhost:3500;
+    }
+
+}

examples/multibot/README.MD

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+You probably have seen bots which allow you to send them token of your bot and then handle updates providing some functionality for your bot.
+<br>
+This type of bots are called <b>multibots</b>. They are created using webhooks.
+<br>
+
+This is the example of simple multibot.<br>
+In order to reproduce this example you need to have <b>domain and ssl connection</b>.
+<br>
+If you have, go to config.py and specify your data.
+<br>
+There is also file called <b>nginx_conf.conf</b>,  we will use nginx as proxy-server and this file is example nginx.conf file.
+<br>
+Make sure that server_name and port are the same in both config and nginx_conf
+<br>
+(nginx_conf.conf IS NOT complete, you would probably use tools like certbot to add ssl connection to it)
+<br>
+Also, in this example I used dictionary as tokens storage, but in production you should use database so that you can re-set webhooks in case bot restarts.

examples/multibot/config.py

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+MAIN_BOT_TOKEN = "your_main_bot_token"
+
+WEBHOOK_HOST = "your_domain.com"
+WEBHOOK_PATH = "telegram_webhook"
+WEBAPP_HOST = "0.0.0.0"
+WEBAPP_PORT = 3500

examples/multibot/handlers.py

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+from telebot import types, TeleBot
+
+
+def hello_handler(message: types.Message, bot: TeleBot):
+    bot.send_message(message.chat.id, "Hi :)")
+
+
+def echo_handler(message: types.Message, bot: TeleBot):
+    bot.send_message(message.chat.id, message.text)
+
+
+def register_handlers(bot: TeleBot):
+    bot.register_message_handler(hello_handler, func=lambda message: message.text == 'Hello', pass_bot=True)
+    bot.register_message_handler(echo_handler, pass_bot=True)

examples/multibot/main.py

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+from flask import Flask
+from flask import request, abort
+from telebot import TeleBot, types, util
+from handlers import register_handlers
+
+import config
+
+main_bot = TeleBot(config.MAIN_BOT_TOKEN)
+app = Flask(__name__)
+tokens = {config.MAIN_BOT_TOKEN: True}
+
+
+@app.route(f"/{config.WEBHOOK_PATH}/<token>", methods=['POST'])
+def webhook(token: str):
+    if not tokens.get(token):
+        return abort(404)
+
+    if request.headers.get('content-type') != 'application/json':
+        return abort(403)
+
+    json_string = request.get_data().decode('utf-8')
+    update = types.Update.de_json(json_string)
+    if token == main_bot.token:
+        main_bot.process_new_updates([update])
+        return ''
+
+    from_update_bot = TeleBot(token)
+    register_handlers(from_update_bot)
+    from_update_bot.process_new_updates([update])
+    return ''
+
+
+@main_bot.message_handler(commands=['add_bot'])
+def add_bot(message: types.Message):
+    token = util.extract_arguments(message.text)
+    tokens[token] = True
+
+    new_bot = TeleBot(token)
+    new_bot.delete_webhook()
+    new_bot.set_webhook(f"{config.WEBHOOK_HOST}/{config.WEBHOOK_PATH}/{token}")
+
+    new_bot.send_message(message.chat.id, "Webhook was set.")
+
+
+if __name__ == '__main__':
+    main_bot.delete_webhook()
+    main_bot.set_webhook(f"{config.WEBHOOK_HOST}/{config.WEBHOOK_PATH}/{config.MAIN_BOT_TOKEN}")
+    app.run(host=config.WEBAPP_HOST, port=config.WEBAPP_PORT)

examples/multibot/nginx_conf.conf

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+server {
+    server_name your_domain.com;
+
+    location /telegram_webhook/ {
+        proxy_pass http://localhost:3500;
+    }
+
+}