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pyTelegramBotAPI/examples/webhook_examples/webhook_fastapi_echo_bot.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This is a simple echo bot using decorators and webhook with fastapi
# It echoes any incoming text messages and does not use the polling method.
import logging
import fastapi
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import uvicorn
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import telebot
API_TOKEN = 'TOKEN'
WEBHOOK_HOST = '<ip/domain>'
WEBHOOK_PORT = 8443 # 443, 80, 88 or 8443 (port need to be 'open')
WEBHOOK_LISTEN = '0.0.0.0' # In some VPS you may need to put here the IP addr
WEBHOOK_SSL_CERT = './webhook_cert.pem' # Path to the ssl certificate
WEBHOOK_SSL_PRIV = './webhook_pkey.pem' # Path to the ssl private key
# Quick'n'dirty SSL certificate generation:
#
# openssl genrsa -out webhook_pkey.pem 2048
# openssl req -new -x509 -days 3650 -key webhook_pkey.pem -out webhook_cert.pem
#
# When asked for "Common Name (e.g. server FQDN or YOUR name)" you should reply
# with the same value in you put in WEBHOOK_HOST
WEBHOOK_URL_BASE = "https://{}:{}".format(WEBHOOK_HOST, WEBHOOK_PORT)
WEBHOOK_URL_PATH = "/{}/".format(API_TOKEN)
logger = telebot.logger
telebot.logger.setLevel(logging.INFO)
bot = telebot.TeleBot(API_TOKEN)
app = fastapi.FastAPI(docs=None, redoc_url=None)
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@app.post(f'/{API_TOKEN}/')
def process_webhook(update: dict):
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"""
Process webhook calls
"""
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if update:
update = telebot.types.Update.de_json(update)
bot.process_new_updates([update])
else:
return
@bot.message_handler(commands=['help', 'start'])
def send_welcome(message):
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"""
Handle '/start' and '/help'
"""
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bot.reply_to(message,
("Hi there, I am EchoBot.\n"
"I am here to echo your kind words back to you."))
@bot.message_handler(func=lambda message: True, content_types=['text'])
def echo_message(message):
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"""
Handle all other messages
"""
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bot.reply_to(message, message.text)
# Remove webhook, it fails sometimes the set if there is a previous webhook
bot.remove_webhook()
# Set webhook
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bot.set_webhook(
url=WEBHOOK_URL_BASE + WEBHOOK_URL_PATH,
certificate=open(WEBHOOK_SSL_CERT, 'r')
)
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uvicorn.run(
app,
host=WEBHOOK_LISTEN,
port=WEBHOOK_PORT,
ssl_certfile=WEBHOOK_SSL_CERT,
ssl_keyfile=WEBHOOK_SSL_PRIV
)