{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/acid/refs/heads/main/json-schema/acid-saga-step-schema.json",
  "title": "AcidSagaStep",
  "description": "A step in a distributed Saga pattern transaction, representing a local transaction with a compensating action for rollback.",
  "type": "object",
  "properties": {
    "stepId": {
      "type": "string",
      "format": "uuid",
      "description": "Unique identifier for this saga step",
      "example": "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
    },
    "sagaId": {
      "type": "string",
      "format": "uuid",
      "description": "Identifier of the parent saga workflow",
      "example": "b2c3d4e5-f6a7-8901-bcde-fa2345678901"
    },
    "stepName": {
      "type": "string",
      "description": "Human-readable name for this saga step",
      "example": "Debit Customer Account"
    },
    "sequence": {
      "type": "integer",
      "description": "Execution order within the saga (1-based)",
      "example": 1
    },
    "status": {
      "type": "string",
      "description": "Current status of this saga step",
      "enum": ["Pending", "Executing", "Completed", "Compensating", "Compensated", "Failed"],
      "example": "Completed"
    },
    "serviceEndpoint": {
      "type": "string",
      "format": "uri",
      "description": "URL of the service responsible for this step",
      "example": "https://payments.example.com/api/debit"
    },
    "compensationEndpoint": {
      "type": "string",
      "format": "uri",
      "description": "URL to call to undo this step if a later step fails",
      "example": "https://payments.example.com/api/refund"
    },
    "startTime": {
      "type": "string",
      "format": "date-time",
      "description": "When this step began executing",
      "example": "2026-04-19T10:00:00.000Z"
    },
    "endTime": {
      "type": "string",
      "format": "date-time",
      "description": "When this step completed or was compensated",
      "example": "2026-04-19T10:00:00.200Z"
    },
    "retryCount": {
      "type": "integer",
      "description": "Number of retry attempts for this step",
      "example": 0
    },
    "errorMessage": {
      "type": "string",
      "description": "Error message if the step failed",
      "example": "Insufficient funds in account"
    }
  },
  "required": ["stepId", "sagaId", "stepName", "sequence", "status"]
}