generated: '2026-07-21'
method: derived
source: openapi/styra-enterprise-opa-openapi.yaml
note: >-
  Derived from the Enterprise OPA / OPA REST API OpenAPI component schemas. OPA is a
  policy-decision engine, so the "entities" are decision request/response documents
  rather than persisted resources with id references.
entities:
- name: input
  description: The JSON input document supplied to a policy evaluation.
- name: result
  description: The value of the queried policy decision (arbitrary JSON).
- name: SuccessfulPolicyResponse
  description: Wraps result plus optional metrics and decision_id.
  relationships:
  - has_one: result
    via: result
  - has_one: provenance
    via: provenance
- name: provenance
  description: Provenance metadata (version, build/bundle info) about the OPA instance that produced the decision.
- name: CompileOptions
  description: Options controlling partial evaluation for the Compile (data filtering) API.
- name: CompileResultUCAST
  description: Partial-evaluation conditions expressed as UCAST (used for data filtering).
- name: CompileResultSQL
  description: Partial-evaluation conditions compiled to a SQL dialect (postgresql/mysql/sqlserver/sqlite).
- name: CompileResultMultitarget
  description: Compile result carrying multiple target representations at once.
- name: MaskingRule
  description: Rule describing fields to mask in Compile/data-filtering output.
- name: BatchSuccessfulPolicyEvaluation
  description: Map of batch entry id to per-entry SuccessfulPolicyResponse.
  relationships:
  - has_many: SuccessfulPolicyResponse
    via: responses
- name: ClientError
  description: 4xx error envelope { code, message, errors[]{code,message,location} }.
- name: ServerError
  description: 5xx error envelope; adds decision_id for decision-log correlation.