new_contents: import os
  from flask import session
  
  from app import oauth
  
  facebook = oauth.remote_app(
      "facebook",
      base_url="https://graph.facebook.com/",
      request_token_url=None,
      access_token_url="/oauth/access_token",
      authorize_url="https://facebook.com/dialog/oauth",
      consumer_key=os.getenv("MYDICTIONARY_FACEBOOK_APP_ID"),
      consumer_secret=os.getenv("MYDICTIONARY_FACEBOOK_APP_SECRET"),
      request_token_params={"scope": "email"}
  )
  
  @facebook.tokengetter
  def get_facebook_oauth_token():
      return session.get("oauth_token")
subject: Add Facebook OAuth