{
  "$id": "https://sessionpipe.org/schema/v1/control-pair-started.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "machine": {
      "type": "string",
      "pattern": "^m_[A-Za-z0-9_-]{16,40}$"
    },
    "code": {
      "type": "string",
      "pattern": "^[A-Za-z0-9_-]{6,32}$"
    },
    "url": {
      "type": "string",
      "format": "uri"
    },
    "check": {
      "type": "string",
      "pattern": "^\\d{6}$"
    },
    "expires_at": {
      "type": "string",
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d\\.\\d{3}(?:Z))$"
    }
  },
  "required": [
    "machine",
    "code",
    "url",
    "check",
    "expires_at"
  ]
}