{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "type": "object",
  "description": "The Ditto Protocol response is sent in response to a command.",
  "title": "Ditto Protocol response",
  "properties": {
    "topic": {
      "type": "string",
      "description": "Contains the same topic as the commands which this response correlates to."
    },
    "headers": {
      "type": "object",
      "description": "Additional headers.",
      "properties": {
        "correlation-id": {
          "type": "string",
          "description": "The correlation-id header is used for linking one message with another. It typically links a reply message with its requesting message."
        },
        "version": {
          "type": "integer",
          "description": "Determines the version of the *Things* payload.",
          "minimum": 1,
          "maximum": 2
        }
      },
      "required": [ "correlation-id" ]
    },
    "path": {
      "type": "string",
      "description": "A Path that references a part of a Thing which is affected by this message.\nExamples:\n * `/feature/location/properties/longitude` (a single sensor value)\n * `/` (the whole Thing)"
    },
    "value": {
      "type": ["object","string","number","array","boolean"],
      "description": "The _value_ field contains the actual payload e.g. a sensor value."
    },
    "status": {
      "type": "integer",
      "description": "The status code that indicates the result of the command. The semantics of the used status codes are based on the [HTTP status codes](https://tools.ietf.org/html/rfc7231#section-6)."
    }
  },
  "required": [ "topic", "headers", "path", "status" ]
}