The request and response objects in key_builder is always empty

[ppanchal-mobiz]

I tried to use the default_key_builder and also custom_key_builder with FastAPICache.init(RedisBackend(r), key_builder=custom_key_builder) and with @cache(key_builder=custom_key_builder) but whatever I do, I am always getting None when trying to access request or response objects. My custom_key_builder is given below:

def custom_key_builder(
    func,
    namespace,
    request,
    response,
    *args,
    **kwargs
) -> str:
    cache_key = hashlib.md5(
        f"{func.__module__}:{func.__name__}:{args}:{kwargs.get('kwargs').get('input')}".encode()
    ).hexdigest()
    return f"{namespace}:{settings.OTEL_SERVICE_NAME}:{cache_key}"

[ppanchal-mobiz]

This happens because I reverted to v0.1.9 due to this error: #113 (comment). So on the latest version, I am getting the got multiple values for argument error and now I can't revert to v0.1.9 due to the request object being empty.