{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/wordline/main/json-schema/wordline-api-response-entity-retrieve-letter-templates-schema.json",
  "title": "ApiResponseEntityRetrieveLetterTemplates",
  "description": "Retrieve Letter Templates response entity",
  "x-generated": "2026-10-10",
  "x-method": "derived",
  "x-generator": "derive-json-schema.py",
  "x-source": "openapi/wordline-card-letter-api-openapi.yml#/components/schemas/ApiResponseEntityRetrieveLetterTemplates",
  "x-wl-api-response": true,
  "type": "object",
  "required": [
    "responseMetadata"
  ],
  "properties": {
    "responseMetadata": {
      "description": "Response metadata",
      "allOf": [
        {
          "$ref": "#/$defs/ResponseMetadata"
        }
      ]
    },
    "data": {
      "description": "Response data",
      "type": "array",
      "items": {
        "$ref": "#/$defs/LetterTemplate"
      }
    }
  },
  "$defs": {
    "LetterTemplate": {
      "type": "object",
      "properties": {
        "issuerId": {
          "type": "string",
          "description": "Issuer identifier (unique per platform)"
        },
        "letterTemplateIdentifier": {
          "allOf": [
            {
              "$ref": "#/$defs/LetterTemplateIdentifier"
            }
          ],
          "description": "Identifier of the letter template"
        },
        "parameters": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/LetterTemplateParameter"
          },
          "description": "List of the parameters related to the template, containing template parameter properties fetched from the Letter Generation Service configuration file.\n_Embedded property, only filled when available for the endpoint and explicitly requested in the 'embed' query parameter._"
        },
        "description": {
          "type": "string",
          "description": "Description of the letter template. Free text field"
        },
        "structure": {
          "type": "string",
          "description": "Used for Jasper letters. Defines the structure of the Jasper template"
        },
        "outputFormat": {
          "type": "string",
          "description": "Output format of the template to define the output format. Possible values are:\n•\tPDF\n•\tXML\n•\tWORD"
        },
        "category": {
          "type": "string",
          "description": "Category of the template.Examples:\n-\t CARD \n- DISPUTE \n- FRAUD"
        },
        "transformerType": {
          "type": "string",
          "description": "The transformer type defines the format of the template and so technologies that will be used to generate the letter. Possible values are:\n•\tJASPER\n•\tXSLT"
        }
      },
      "title": "LetterTemplate"
    },
    "LetterTemplateIdentifier": {
      "type": "object",
      "properties": {
        "letterTemplateReference": {
          "type": "string",
          "description": "Reference of the letter template"
        }
      },
      "title": "LetterTemplateIdentifier"
    },
    "LetterTemplateParameter": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "description": "Name of the template parameter"
        },
        "displayType": {
          "type": "string",
          "description": "Indicates how the template parameter should be displayed in an UI. Possible values:\n- \"text\" for text fields\n- \"list\" for drop down lists\n- \"date\" for date fields\n- \"no_display\" when field should not be displayed"
        },
        "source": {
          "type": "string",
          "description": "Source of the template parameter. Indicates how the field is populated. Can be a fixed value or a list of fixed values for a static variable, or a property of a business object for a dynamic variable. The Prefill parameters for the defined letter templates API should be used to return dynamic values."
        },
        "sourceType": {
          "type": "string",
          "description": "Type of the source Possible values: \n- \"date\" when the source is a date\n- \"list\" when the source is a list\n- \"collection\" when the source is a collection and contains sub parameters (Note : list of parameters of the collection is currently not returned)"
        },
        "defined": {
          "type": "boolean",
          "description": "Indicates if the template parameter is defined in the configuration (true) or not (false)"
        },
        "invalid": {
          "type": "boolean",
          "description": "Indicates if the template parameter is invalid (true) or not (false)"
        },
        "editable": {
          "type": "boolean",
          "description": "If true, the template parameter can be displayed as modifiable in an UI."
        },
        "description": {
          "type": "string",
          "description": "Description of the template parameter"
        },
        "validation": {
          "type": "string",
          "description": "Regular expression used to validate the value of the template parameter (ex : length), either in an UI or during Generate a letter API call"
        },
        "format": {
          "type": "string",
          "description": "Format of the template parameter. Indicates how the value is formatted and will be displayed in an UI. Used for dates and amounts (ex : yyyy-mm-dd in case of date). Default format for date fields is dd/mm/yyyy"
        },
        "displayOrder": {
          "type": "string",
          "description": "Display order of the template parameter"
        },
        "subParameters": {
          "description": "List of sub parameters of the letter template",
          "type": "array",
          "items": {
            "$ref": "#/$defs/LetterTemplateParameter"
          }
        }
      },
      "title": "LetterTemplateParameter"
    },
    "Links": {
      "type": "object",
      "required": [
        "self"
      ],
      "properties": {
        "self": {
          "type": "string",
          "description": "Service method URL"
        },
        "next": {
          "type": "string",
          "description": "URL pagination query parameter next page"
        }
      },
      "title": "Links"
    },
    "ResponseMetadata": {
      "type": "object",
      "required": [
        "correlationId",
        "responseDateTime",
        "statusCode",
        "statusMessage"
      ],
      "properties": {
        "correlationId": {
          "type": "string",
          "description": "Correlation Identifier"
        },
        "links": {
          "description": "Metadata Links",
          "allOf": [
            {
              "$ref": "#/$defs/Links"
            }
          ]
        },
        "statusMessage": {
          "type": "string",
          "description": "Executed REST API status message"
        },
        "statusCode": {
          "type": "integer",
          "format": "int32",
          "description": "HTTP status code"
        },
        "responseDateTime": {
          "type": "string",
          "description": "Timestamp when response date was generated"
        },
        "timeTakenMs": {
          "type": "integer",
          "format": "int64",
          "description": "Wall clock time required from service to generate the response"
        }
      },
      "title": "ResponseMetadata"
    }
  }
}