{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "Server",
    "description": "Server address and port number",
    "type": "object",
    "properties": {
        "server": {
            "type": "object",
            "properties": {
                "address": {
                    "type": "string"
                },
                "port": {
                    "type": "integer"
                }
            },
            "additionalProperties": false,
            "required": [
                "address",
                "port"
            ]
        }
    }
}