[Python] How to solve this error (POST / HTTP/1.1" 405) in a telegram bot using python flask...

I am trying to make a python telegram bot that manage my team group, adding tasks and reminders. I deployed the code on render.com, and this error: (POST / HTTP/1.1" 405) appears in it's logs. notice: "method not allowed" is not mentioned in the logs..



Here is the code:

#modules

import os
import json
import requests
from flask import Flask, request
from pymongo import MongoClient
from apscheduler.schedulers.background import BackgroundScheduler
from apscheduler.triggers.date import DateTrigger
from dotenv import load_dotenv
from datetime import datetime

#imp.data
load_dotenv()
BOT_TOKEN = os.getenv("BOT_TOKEN")
MONGO_URI = os.getenv("MONGO_URI")
WEBHOOK_URL = os.getenv("WEBHOOK_URL")
AUTHORIZED_USERS = list(map(int, os.getenv("AUTHORIZED_USERS", "").split(",")))

# setting flask

app = Flask(__name__)
# إعداد قاعدة البيانات MongoDB
client = MongoClient(MONGO_URI)
db = client["task_manager"]
tasks_collection = db["tasks"]
reminders_collection = db["reminders"]

# Task Scheduler
scheduler = BackgroundScheduler()
scheduler.start()

#setting webhook
@app.route("/", methods=["GET", "POST"])
def home():
if request.method == "POST":
return "This endpoint is not for webhooks!", 405
return "Bot is running!"

@app.route("/webhook", methods=["POST"])
def webhook():
update = request.get_json()
if update:
handle_message(update.get("message", {}))
return "", 200 # Always return a successful response
def handle_message(message):
chat_id = message["chat"]["id"]
user_id = message["from"]["id"]
text = message.get("text", "")

if text.startswith("/addtask") and user_id in AUTHORIZED_USERS:
add_task(chat_id, user_id, text)
elif text.startswith("/viewtasks"):
view_tasks(chat_id)
elif text.startswith("/setreminder") and user_id in AUTHORIZED_USERS:
set_reminder(chat_id, user_id, text)
else:
send_message(chat_id, "❌ أمر غير معروف أو ليس لديك الصلاحية!") #translation = Unknown command or you do not have permission

def add_task(chat_id, user_id, text):
try:
_, title, desc, due_date, priority = text.split("|")
task = {
"title": title.strip(),
"description": desc.strip(),
"due_date": due_date.strip(),
"priority": priority.strip(),
"created_by": user_id,
"created_at": datetime.utcnow()
}
tasks_collection.insert_one(task)
send_message(chat_id, "✅ تم إضافة المهمة بنجاح!")# Tasks added
except:
send_message(chat_id, "❌ صيغة غير صحيحة! استخدم:\n`/addtask | العنوان | الوصف | YYYY-MM-DD | الأولوية (Low, Medium, High)`") #Not the best way I'll fix it later.

def view_tasks(chat_id):
tasks = list(tasks_collection.find())
if not tasks:
send_message(chat_id, " لا توجد مهام حاليًا.")#not tasks certainly
return

message = " **قائمة المهام:**\n" #tasks list
for task in tasks:
message += f"\n **{task['title']}**\n {task['description']}\n {task['due_date']}\n⚠️ {task['priority']}\n---"

send_message(chat_id, message)

def set_reminder(chat_id, user_id, text):
try:
_, task_title, remind_time = text.split("|")
remind_time = datetime.strptime(remind_time.strip(), "%Y-%m-%d %H:%M")

reminder = {
"task_title": task_title.strip(),
"remind_time": remind_time,
"chat_id": chat_id
}
reminders_collection.insert_one(reminder)

scheduler.add_job(
send_reminder,
trigger=DateTrigger(run_date=remind_time),
args=[chat_id, task_title]
)

send_message(chat_id, "⏰ تم تعيين التذكير بنجاح!")#reminder set
except:
send_message(chat_id, "❌ صيغة غير صحيحة! استخدم:\n`/setreminder | عنوان المهمة | YYYY-MM-DD HH:MM`")

def send_reminder(chat_id, task_title):
send_message(chat_id, f" تذكير بالمهمة: **{task_title}**")

def send_message(chat_id, text):
url = f"https://api.telegram.org/bot{BOT_TOKEN}/sendMessage"
payload = {"chat_id": chat_id, "text": text, "parse_mode": "Markdown"}
requests.post(url, json=payload)

if __name__ == "__main__":
app.run(host="0.0.0.0", port=5000)
requests.get(f"https://api.telegram.org/bot{TOKEN}setWebhook?url=https://testbot-zppg.onrender.com")


I have tried to ask gpt but all solutions didn't worked, setting webhook was in the beginning but didn't work also.

Can you help Guys,the bot is not responding, I have tried for 3 days and more than 40 commits and tries.

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