Create a venv

python -m venv venv/

or if You have multiple python version installed

py -3.11 -m venv venv/

Activate the venv

.\venv\Scripts\activate

install this

pip install flask httpx datetime

Create a requirements.txt

pip freeze > requirements.txt

Create a Procfile & add this in the file (for heroku host)

web: gunicorn greeting:app

---

Note: make sure you put your fb group api access token in hosting provider environment variable

variable name : ACCESS_TOKEN & value : your_access_token

To Get FB Access Token

• make an app and visit https://developers.facebook.com/tools/explorer/
• select your app name & select user token
• add these permissions =
  • user_photos
  • user_posts
  • user_managed_groups
  • groups_show_list
  • publish_to_groups
  • groups_access_member_info
  • public_profile
• make sure you have Graph api advanced previlage access
• now generate access token (extend your access token validity -- google it how)

Now use any hosting you want.