{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "opener-daemons",
    "description": "Schema for SQS input messages",
    "type": "object",
    "properties": {
        "input_url": {
            "description": "URL to the KAF document to process",
            "type": "string"
        },

        "identifier": {
            "description": "A unique identifier to associate with the document",
            "type": "string"
        },

        "callbacks": {
            "description": "An Array of URLs to submit the result to",
            "type": "array",
            "minItems": 1
        },

        "metadata": {
            "description": "Extra metadata to pass along to each output URL",
            "type": "object",
            "additionalProperties": true
        }
    },
    "required": ["input_url", "callbacks"]
}