Get upcoming, past, or all artist events, or events within a date range

{
  "type": "object",
  "properties": {
    "app_id": {
      "type": "string"
    },
    "artistname": {
      "type": "string"
    },
    "date": {
      "type": "string"
    }
  },
  "required": [
    "app_id",
    "artistname"
  ],
  "additionalProperties": false
}