If you don't want to use an SDK or we don't have one for your language yet, you can get your configuration from the GraphQL API.
The GraphQL API is hosted on Hypertune Edge for low latency responses, typically < 50ms.
GraphQL queries to the API must contain all field arguments so that your configuration logic can be fully reduced and evaluated into a JSON result which can be returned.
For instructions on how to query the API, see the GraphQL quickstart.