{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "Investment Transaction",
    "type": "object",
    "additionalProperties": false,
    "properties": {
        "_id": {
            "type": "integer",
            "description": "A unique ID for InvestmentTransaction"
        },
        "price": {
            "type": "number"
        },
        "quantity": {
            "type": "number"
        }
    }
}