diff --git a/Part_4/Yonathan/Dockerfile b/Part_4/Yonathan/Dockerfile
new file mode 100644
index 0000000..b9e89db
--- /dev/null
+++ b/Part_4/Yonathan/Dockerfile
@@ -0,0 +1,13 @@
+# Choosing an image for you container.
+FROM python:3.11.0
+# Setting your working directory
+WORKDIR /app
+# This command would copy EVERY FILE from your project folder into your container, so be careful.
+COPY . /app
+# Installing needed packages and dependencies.**
+RUN pip install -r requirements.txt
+# This command basically executes your main file with Python.
+CMD ["python", "main.py"]
+# Setting a port for your app communications with Telegram servers.
+
+EXPOSE 80/tcp
\ No newline at end of file
diff --git a/Part_4/Yonathan/Readme.md b/Part_4/Yonathan/Readme.md
new file mode 100644
index 0000000..8ab5ea6
--- /dev/null
+++ b/Part_4/Yonathan/Readme.md
@@ -0,0 +1,8 @@
+# Implementation of this example bot is deployed and it is found by the telegram handle [@A2SV_Remote_Part_4_Example_bot](https://t.me/A2SV_Remote_Part_4_Example_bot)
+
+⚠ It is not deployed, but you can run the code on codespaces or localy and use the bot
+# Done by: Blen
+# Bot Commands implemented: `/add_user`
+#                         : `/all_users`
+#                         : `/get_user_by_id`
+#
diff --git a/Part_4/Yonathan/__init__.py b/Part_4/Yonathan/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/bot/__init__.py b/Part_4/Yonathan/bot/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/bot/bot_instance.py b/Part_4/Yonathan/bot/bot_instance.py
new file mode 100644
index 0000000..dd34dc4
--- /dev/null
+++ b/Part_4/Yonathan/bot/bot_instance.py
@@ -0,0 +1,20 @@
+import os
+from aiogram import Bot, types
+
+from config import TOKEN_API
+# Use the commented code below if you store the token api in .env
+# from dotenv import load_dotenv
+# load_dotenv()
+
+# For hosting on pythonanywhere use the following commented code
+# from aiogram.client.session.aiohttp import AiohttpSession
+# bot = Bot(
+#     token=TOKEN_API,
+#     parse_mode='HTML',
+#     session=AiohttpSession(proxy='http://proxy.server:3128')
+# )
+
+bot = Bot(
+    token=TOKEN_API,
+    parse_mode='HTML'
+)
\ No newline at end of file
diff --git a/Part_4/Yonathan/bot/callbacks/__init__.py b/Part_4/Yonathan/bot/callbacks/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/bot/callbacks/callback.py b/Part_4/Yonathan/bot/callbacks/callback.py
new file mode 100644
index 0000000..363e6c5
--- /dev/null
+++ b/Part_4/Yonathan/bot/callbacks/callback.py
@@ -0,0 +1,15 @@
+from aiogram.filters import Command
+from aiogram import Router, types 
+from aiogram.utils.keyboard import InlineKeyboardBuilder
+
+
+callback_router = Router()
+
+
+@callback_router.callback_query(lambda c: c.data.startswith("action_1"))
+async def process_callback_respond_to_action1(callback_query: types.CallbackQuery):
+    await callback_query.message.answer(f"you picked {callback_query.data}")
+
+@callback_router.callback_query(lambda c: c.data.startswith("action_2"))
+async def process_callback_respond_to_action1(callback_query: types.CallbackQuery):
+    await callback_query.message.answer(f"you picked {callback_query.data}")
diff --git a/Part_4/Yonathan/bot/handlers/__init__.py b/Part_4/Yonathan/bot/handlers/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/bot/handlers/message_handlers.py b/Part_4/Yonathan/bot/handlers/message_handlers.py
new file mode 100644
index 0000000..bee76d8
--- /dev/null
+++ b/Part_4/Yonathan/bot/handlers/message_handlers.py
@@ -0,0 +1,47 @@
+from aiogram.filters import Command
+from aiogram import Router, types, F
+from aiogram.utils.keyboard import InlineKeyboardBuilder
+from datetime import datetime
+
+from ..keyboards import keyboard
+from database.services.user_services import get_users, get_user_by_id, create_user
+
+message_router = Router()
+
+@message_router.message(Command('all_users'))
+async def all_users(message: types.Message):
+    try:
+        users = await get_users()
+        await message.answer(f"{users}")
+    except Exception as e:
+        await message.answer(f"Some error occurred: {e}")
+
+@message_router.message(Command('add_user'))
+async def add_users(message: types.Message):
+    try:
+        print("Adding user...")
+        users = await create_user(int(message.chat.id), name = message.chat.full_name, date= datetime.now())
+        print("done")
+        await message.answer(f"{users}")
+    except Exception as e:
+        await message.answer(f"Some error occurred:\n {e}")
+
+@message_router.message(Command('get_user_by_id'))
+async def get_by_id(message: types.Message):
+    try:
+        await message.answer("What is the id of the user you are looking for?")
+    except:
+        await message.answer("Some error occurred")
+
+@message_router.message()
+async def retrive_user_by_id(message: types.Message):
+    try:
+        print("searching user...")
+        user = await get_user_by_id(int(message.text))
+        print("searching complete...")
+        await message.answer(f"{user}")
+    except Exception as e:
+        await message.answer(f"Some error occurred {e}")
+
+
+# Same way you can update and delete users
\ No newline at end of file
diff --git a/Part_4/Yonathan/bot/keyboards/__init__.py b/Part_4/Yonathan/bot/keyboards/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/bot/keyboards/keyboard.py b/Part_4/Yonathan/bot/keyboards/keyboard.py
new file mode 100644
index 0000000..381e495
--- /dev/null
+++ b/Part_4/Yonathan/bot/keyboards/keyboard.py
@@ -0,0 +1,4 @@
+
+from aiogram.types import ReplyKeyboardMarkup, InlineKeyboardMarkup, KeyboardButton, InlineKeyboardButton
+
+
diff --git a/Part_4/Yonathan/config.py b/Part_4/Yonathan/config.py
new file mode 100644
index 0000000..52c54c0
--- /dev/null
+++ b/Part_4/Yonathan/config.py
@@ -0,0 +1,2 @@
+TOKEN_API="6712112472:AAFQOvBA5T6-FTD4Cz2XmjFy14NVyPRiY8I"
+MONGO_URL="mongodb+srv://A2SVian:zq0STDlLqS2pq8ox@data-cluster.oiwdwnw.mongodb.net/?retryWrites=true&w=majority"
\ No newline at end of file
diff --git a/Part_4/Yonathan/database/__init__.py b/Part_4/Yonathan/database/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/database/loader.py b/Part_4/Yonathan/database/loader.py
new file mode 100644
index 0000000..37aea4f
--- /dev/null
+++ b/Part_4/Yonathan/database/loader.py
@@ -0,0 +1,10 @@
+from aiogram import Bot, Dispatcher
+import motor.motor_asyncio
+from aiogram.fsm.storage.memory import MemoryStorage
+
+from config import MONGO_URL
+
+
+
+cluster = motor.motor_asyncio.AsyncIOMotorClient(MONGO_URL)
+collection = cluster.Blen.myCollection
diff --git a/Part_4/Yonathan/database/models/__init__.py b/Part_4/Yonathan/database/models/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/database/models/user_model.py b/Part_4/Yonathan/database/models/user_model.py
new file mode 100644
index 0000000..05ac4c2
--- /dev/null
+++ b/Part_4/Yonathan/database/models/user_model.py
@@ -0,0 +1,16 @@
+from pydantic import BaseModel
+
+from ..loader import collection
+from datetime import datetime
+
+
+class User(BaseModel):
+    _id: int
+    name: str
+    date: datetime
+    bio: str
+    phone_number: str
+   
+
+
+users_collection = collection.user
\ No newline at end of file
diff --git a/Part_4/Yonathan/database/services/__init__.py b/Part_4/Yonathan/database/services/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/database/services/user_services.py b/Part_4/Yonathan/database/services/user_services.py
new file mode 100644
index 0000000..9cea4cf
--- /dev/null
+++ b/Part_4/Yonathan/database/services/user_services.py
@@ -0,0 +1,21 @@
+from ..models.user_model import User, users_collection
+
+
+async def get_users() -> list[User]:
+    users = users_collection.find()
+    return [User(**u) async for u in users]
+
+
+async def get_user_by_id(id: int) -> User or None:
+    user = await users_collection.find_one({'_id': id})
+    return User(**user) if user else None
+
+
+async def create_user(id: int, **kwargs) -> User:
+    user = await users_collection.insert_one({'_id': id, **kwargs})
+    return await get_user_by_id(user.inserted_id)
+
+
+async def update_user(id: int, **kwargs) -> User:
+    user = await users_collection.find_one_and_update({'_id': id}, {'$set': kwargs}, return_document=True)
+    return User(**user)
diff --git a/Part_4/Yonathan/main.py b/Part_4/Yonathan/main.py
new file mode 100644
index 0000000..5a604cf
--- /dev/null
+++ b/Part_4/Yonathan/main.py
@@ -0,0 +1,37 @@
+import asyncio 
+
+from aiogram import Dispatcher
+
+from bot.bot_instance import bot
+from bot.handlers.message_handlers import message_router
+from bot.callbacks.callback import callback_router
+
+
+def register_routers(dp: Dispatcher) -> None:
+    """Registers routers"""
+
+    dp.include_router(message_router)
+
+    # callback routers
+    dp.include_router(callback_router)
+
+
+
+
+
+async def main() -> None:
+    """The main function which will execute our event loop and start polling."""
+    try:
+        dp = Dispatcher()
+
+        print('Bot Starting....')
+        register_routers(dp)
+        print("Polling ....")
+        
+        await dp.start_polling(bot)
+    except:
+        print("Some error occurred")
+    
+
+if __name__ == "__main__":
+    asyncio.run(main())
\ No newline at end of file
diff --git a/Part_4/Yonathan/requirements.txt b/Part_4/Yonathan/requirements.txt
new file mode 100644
index 0000000..5b79c5f
Binary files /dev/null and b/Part_4/Yonathan/requirements.txt differ
diff --git a/Part_4/Yonathan/utils/__init__.py b/Part_4/Yonathan/utils/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Part_4/Yonathan/utils/state.py b/Part_4/Yonathan/utils/state.py
new file mode 100644
index 0000000..dc33d67
--- /dev/null
+++ b/Part_4/Yonathan/utils/state.py
@@ -0,0 +1,8 @@
+from aiogram.fsm.state import StatesGroup, State
+
+class Form(StatesGroup):
+    name = State()
+    phone_number = State()
+    role = State()
+    photo = State()
+    bio = State()
\ No newline at end of file