{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/united-technologies/refs/heads/main/json-structure/arinc-messaging-send-message-request-structure.json",
  "name": "SendMessageRequest",
  "description": "Request to send an uplink message.",
  "properties": {
    "messageType": {
      "description": "ARINC message type.",
      "example": "ACARS",
      "type": "string"
    },
    "registration": {
      "description": "Target aircraft registration.",
      "example": "N12345",
      "type": "string"
    },
    "airlineCode": {
      "description": "IATA airline code.",
      "example": "AA",
      "type": "string"
    },
    "flightNumber": {
      "description": "Flight number.",
      "example": "AA100",
      "type": "string"
    },
    "content": {
      "description": "Message content to send.",
      "example": "GATE CHANGE TO B22",
      "type": "string"
    },
    "priority": {
      "description": "Message transmission priority.",
      "enum": [
        "URGENT",
        "HIGH",
        "NORMAL",
        "LOW"
      ],
      "example": "NORMAL",
      "type": "string"
    }
  },
  "required": [
    "messageType",
    "registration",
    "content"
  ],
  "type": "object"
}