openapi: 3.1.2
jsonSchemaDialect: https://spec.openapis.org/oas/3.1/dialect/base
info:
  title: Knife4j OAS 3.1 minimal example
  version: 1.0.0
paths:
  /health:
    get:
      operationId: getHealth
      summary: Read service health
      responses:
        "200":
          description: Service is healthy
          content:
            application/json:
              schema:
                type: object
                required:
                  - status
                properties:
                  status:
                    type: string
                    const: ok
                  note:
                    type:
                      - string
                      - "null"
              examples:
                healthy:
                  value:
                    status: ok
                    note: null