api_version: pycharter.io/v2
kind: DataContract
metadata:
  name: orders
  version: "1.0.0"
spec:
  json_schema:
    version: "1.0.0"
    type: object
    properties:
      order_id:
        type: string
        minLength: 1
      amount:
        type: number
        minimum: 0
    required: [order_id, amount]
    additionalProperties: false