Retrieve Custom Fields

{
  "type": "array",
  "description": "The list of custom fields.",
  "items": {
    "type": "object",
    "description": "A separate Custom Field schema.",
    "required": [
      "type"
    ],
    "properties": {
      "_links": {
        "type": "array",
        "description": "The links related to resource.",
        "items": {
          "type": "object",
          "required": [
            "rel"
          ],
          "properties": {
            "rel": {
              "type": "string",
              "description": "The link type.",
              "enum": [
                "self"
              ]
            }
          }
        }
      },
      "additionalSchema": {
        "description": "Additional parameters which can be added according to type:\nParameter Name | Types         | Description\n-------------- | ------------- | -------------\nallowedValues  | string, array | List of allowed values maxLength      | string        | Maximum allowed length for the string, 255 by default, up to 4000\nThe additional schema adds additional constrains for values.\n",
        "type": "object"
      },
      "description": {
        "type": "string",
        "description": "The custom field description."
      },
      "name": {
        "type": "string",
        "description": "The name of the custom field."
      },
      "type": {
        "type": "string",
        "description": "Type value    | Description\n------------- | -------------\narray         | An array of strings up to 255 characters, maximum size is 1000 elements boolean       | true or false date          | String of format \"full-date\" (YYYY-MM-DD) from RFC-3339 (full-date) datetime      | String of format \"date-time\" (YYYY-MM-DDTHH:MM:SSZ) from RFC-3339 (date-time) integer       | Cardinal value of -2^31..2^31-1 number        | Float value. It can take cardinal values also which are interpreted as float string        | Regular string up to 255 characters monetary      | A map of 3-letters currency code and amount, e.g. {\"currency\": \"EUR\", \"amount\": 25.30}\nThe type cannot be changed.\n",
        "enum": [
          "array",
          "boolean",
          "datetime",
          "integer",
          "number",
          "string",
          "monetary"
        ]
      }
    }
  }
}