easily use access token and refresh token with gspread

OAuthGspread.py

import gspread
from oauth2client.client import OAuth2Credentials
import datetime
import requests


class OAuthGspread:
    scope = ['https://spreadsheets.google.com/feeds', 'https://docs.google.com/feeds']

    def __init__(self, client_id, client_secret, access_token, refresh_token, ):
        self.oauth_params = dict(
            client_id=client_id,
            client_secret=client_secret,
            access_type='offline'
        )

        self.oauth_creds = {
            "access_token": access_token,
            "refresh_token": refresh_token
        }

        self.refresh_params = {
            'client_id': self.oauth_params['client_id'],
            'refresh_token': self.oauth_creds['refresh_token'],
            'client_secret': self.oauth_params['client_secret'],
            'grant_type': 'refresh_token'
        }

    def gspread(self):
        credentials = self.oauth_credentials()
        gc = gspread.authorize(credentials)
        return gc

    def oauth_credentials(self):
        rs = requests.post('https://accounts.google.com/o/oauth2/token', self.refresh_params).json()
        expiry = datetime.datetime.now() + datetime.timedelta(seconds=rs['expires_in'])
        cred_params = {
            'access_token': rs['access_token'],
            'client_id': self.oauth_params['client_id'],
            'client_secret': self.oauth_params['client_secret'],
            'refresh_token': self.refresh_params['refresh_token'],
            'token_expiry': expiry,
            'token_uri': 'https://accounts.google.com/o/oauth2/token',
            'user_agent': '',
        }

        return OAuth2Credentials(**cred_params)