In the Amazon Redshift Data API, every call is a POST to https://redshift-data.<region>.amazonaws.com/ with Content-Type: application/x-amz-json-1.1 and X-Amz-Target: RedshiftData.<Action> — there are no REST-style paths. The API is fully asynchronous: submit a statement, get back an Id, poll DescribeStatement until done, then page results with GetStatementResult — scripts/rs_query.sh (operation 1) drives that loop for you. The same calls work against provisioned clusters and Serverless; only the connection-target field differs.

Request setup

Authentication is handled by the runtime — requests to this API are signed with credentials configured for the workspace, so there is nothing to set up. Do not try to obtain AWS keys or sign requests yourself. A persistent AccessDeniedException means the credential isn't configured for this workspace — report that instead of debugging auth.

Two pieces of configuration are real and required:

1. Region — it's part of the endpoint hostname:

redshift-api

Request setup