modules/dropbox/client.py

import os
from dotenv import load_dotenv
import dropbox

load_dotenv()

REFRESH_TOKEN = os.getenv("DROPBOX_REFRESH_TOKEN")
APP_KEY = os.getenv("DROPBOX_APP_KEY")
APP_SECRET = os.getenv("DROPBOX_APP_SECRET")

if not REFRESH_TOKEN:
    raise Exception("DROPBOX_REFRESH_TOKEN missing")

if not APP_KEY:
    raise Exception("APP_KEY missing")

if not APP_SECRET:
    raise Exception("APP_SECRET missing")

dbx = dropbox.Dropbox(
    app_key=APP_KEY, app_secret=APP_SECRET, oauth2_refresh_token=REFRESH_TOKEN
)