gistfile1.txt

def get_access_token_from_code(code):
    """
    Given a code retrieved from a signed request (*not* from a callback
    querystring), resolve the access token.
    """
    try:
        return _get_access_token_from_code(code)
    except GraphAPIError:
        time.sleep(1)
        return _get_access_token_from_code(code)


def _get_access_token_from_code(code)
    g = GraphAPI()
    data = g.request('oauth/access_token', args={
        'code': code,
        # redirect_uri is required but *must* be blank (oh facebook ...)
        'redirect_uri': '',
        'client_id': settings.FACEBOOK_APP_ID,
        'client_secret': settings.FACEBOOK_APP_SECRET,
    }, response_type=GraphAPI.RESPONSE_TYPE_URLENCODED)
    if data:
        return data.get('access_token')