> ## Documentation Index
> Fetch the complete documentation index at: https://docs.grassfish.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get additional data definitions for locations, optionally filtered by edit level(s)

> Returns the additional data definitions (schema/metadata) for locations, not the actual values.
Use GET /Locations/{id}/AdditionalData to retrieve the values for a specific location.
Edit levels determine the permission scope for modifying an attribute (e.g., which role is allowed to edit it).

## OpenAPI

````json GET /v{version}/Locations/AdditionalData/Definitions
{
  "openapi": "3.0.1",
  "info": {
    "title": "IXM Platform API 1.21",
    "description": "IXM Platform API",
    "contact": {
      "name": "Grassfish",
      "url": "https://grassfish.com",
      "email": "support@grassfish.com"
    },
    "version": "1.21"
  },
  "paths": {
    "/v{version}/Locations/AdditionalData/Definitions": {
      "get": {
        "tags": [
          "Locations"
        ],
        "summary": "Get additional data definitions for locations, optionally filtered by edit level(s)",
        "description": "Returns the additional data definitions (schema/metadata) for locations, not the actual values.\r\nUse GET /Locations/{id}/AdditionalData to retrieve the values for a specific location.\r\nEdit levels determine the permission scope for modifying an attribute (e.g., which role is allowed to edit it).",
        "operationId": "Locations_GetAdditionalDataDefinitionsByEditLevel",
        "parameters": [
          {
            "name": "editLevels",
            "in": "query",
            "description": "One or more edit levels to filter the definitions by. If not specified, all definitions for the user's customer are returned.",
            "schema": {
              "type": "array"
            }
          },
          {
            "name": "version",
            "in": "path",
            "description": "The requested API version",
            "required": true,
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Returns the list of additional data definitions matching the specified edit level(s).",
            "content": {
              "application/json": {
                "schema": {
                  "type": "array",
                  "items": {
                    "$ref": "#/components/schemas/V1.Models.Location.LocationAttribute"
                  }
                }
              }
            }
          },
          "400": {
            "description": "Bad request",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Common.Models.ModelStateError"
                }
              }
            }
          },
          "401": {
            "description": "Unauthorized",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Common.Models.Error"
                }
              }
            }
          },
          "403": {
            "description": "Access denied",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Common.Models.Error"
                }
              }
            }
          },
          "500": {
            "description": "Unexpected error",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Common.Models.Error"
                }
              }
            }
          }
        },
        "security": [
          {
            "api_key": []
          },
          {
            "session_id": []
          }
        ]
      }
    }
  },
  "components": {
    "schemas": {
      "V1.Models.Location.LocationAttribute": {
        "type": "object",
        "properties": {
          "EditLevel": {
            "$ref": "#/components/schemas/Grassfish.BusinessObjectTypes.LocationAttributeEditLevel"
          },
          "Id": {
            "type": "integer",
            "description": "Unique ID of the additional data",
            "format": "int32",
            "readOnly": true
          },
          "Label": {
            "type": "string",
            "description": "Label of the additional data",
            "readOnly": true
          },
          "Type": {
            "type": "string",
            "description": "Type of location attribute (text, list, bool, etc.)",
            "readOnly": true
          }
        },
        "description": "Location attribute"
      },
      "Common.Models.ModelStateError": {
        "type": "object",
        "properties": {
          "ValidationErrors": {
            "type": "object",
            "additionalProperties": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      },
      "Common.Models.Error": {
        "type": "object",
        "properties": {
          "Id": {
            "type": "string"
          },
          "Message": {
            "type": "string"
          },
          "Type": {
            "type": "string"
          },
          "Values": {
            "type": "object",
            "additionalProperties": {
              "type": "object"
            }
          }
        }
      },
      "Grassfish.BusinessObjectTypes.LocationAttributeEditLevel": {
        "enum": [
          "Player",
          "Location",
          "PlayerAndLocation"
        ],
        "type": "string"
      }
    },
    "securitySchemes": {
      "api_key": {
        "type": "apiKey",
        "description": "Api Key",
        "name": "X-ApiKey",
        "in": "header"
      },
      "session_id": {
        "type": "apiKey",
        "description": "Session Id",
        "name": "X-Session-Id",
        "in": "header"
      }
    }
  }
}
````