instagram_basic_refresh_token.py

def get_refresh_token(access_token = ''):
    url = graph_url + 'refresh_access_token'
    param = dict()
    param['grant_type'] = 'ig_refresh_token'
    param['access_token'] = access_token
    response = requests.get(url=url,params= param)
    response = response.json()
    access_token = response['access_token']
    expires_in = response['expires_in']
    return access_token