date_year_month.json

{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "A 7 character string representing a year and month in ISO 8601 YYYY-MM date format. This is a floating time and considered to be time zone independent",
    "type": "string",
    "format": "paypal_common_date_year_month_v1",
    "minLength": 7,
    "maxLength": 7,
    "pattern": "^[0-9]{4}-(0[1-9]|1[0-2])$"
}