发送刷新和访问令牌的django api

def login(request):

    username = request.data.get("username")
    password = request.data.get("password")
    if username is None or password is None:
        return Response({'error': 'Please provide both username and password'},
                        status=HTTP_400_BAD_REQUEST)
    user = authenticate(username=username, password=password)
    if not user:
        return Response({'error': 'Invalid Credentials'},
                        status=HTTP_404_NOT_FOUND)
    token, _ = Token.objects.get_or_create(user=user)
    return Response({'token': token.key},
                    status=HTTP_200_OK)

嗨,我如何修改此代码,以便第一次发送刷新令牌和访问令牌,并通过接收刷新令牌发送访问令牌。 请帮忙。 提前谢谢。