{
    "$schema": "http://json-schema.org/draft-04/schema", 
    "id": "http://api.xeebo.com/schema/xeebo-rest-application-message-request-schema-v1.0.0.json", 
    "title": "Application message request", 
    "description": "Application message request schema", 
    "type": "object", 
    "properties": {
        "version": {
            "title": "Application message schema version", 
            "$ref": "http://api.xeebo.com/schema/xeebo-rest-application-schema-v1.0.0.json#/definitions/versionType"
        }, 
        "message": {
            "title": "Message", 
            "description": "Message data", 
            "type": "object", 
            "properties": {
                "id": {
                    "title": "Message id", 
                    "description": "The message id (used for reference by inReplyTo)", 
                    "$ref": "http://api.xeebo.com/schema/xeebo-rest-application-schema-v1.0.0.json#/definitions/idMessageType"
                }, 
                "inReplyTo": {
                    "title": "In reply to", 
                    "description": "The message reference id this message references", 
                    "anyOf": [
                        {
                            "type": "string"
                        }, 
                        {
                            "type": "null"
                        }
                    ]
                }, 
                "subject": {
                    "title": "Subject", 
                    "description": "The message subject", 
                    "type": "string"
                }, 
                "body": {
                    "title": "Body", 
                    "description": "The message body text", 
                    "type": "string"
                }, 
                "date": {
                    "title": "Message sending date", 
                    "description": "The date the message was sent", 
                    "$ref": "http://api.xeebo.com/schema/xeebo-rest-application-schema-v1.0.0.json#/definitions/dateType"
                }
            }, 
            "required": [
                "id", 
                "subject", 
                "body", 
                "date"
            ], 
            "additionalProperties": false
        }
    }, 
    "required": [
        "version", 
        "message"
    ], 
    "additionalProperties": false
}