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Updating a Label

Updated on 2022-08-09 GMT+08:00

Function

In the current version, this API can only add properties to the end of existing labels, but cannot delete existing properties or update the property sequence.

URI

  • URI format
    POST /ges/v1.0/{project_id}/graphs/{graph_name}/schema/labels/{label_name}/properties
  • URI format (for 100-billion-edge)
    POST /ges/v1.0/{project_id}/graphs/{graph_name}/schema?label={labelName}
  • Parameter description
    Table 1 URI parameter description

    Parameter

    Mandatory

    Type

    Description

    project_id

    Yes

    String

    Project ID, which is used for resource isolation. For details, see Obtaining a Project ID.

    graph_name

    Yes

    String

    Graph name

    label_name

    Yes

    String

    Label name

Request

  • Example request (unavailable for 100-billion-edge)
    POST http://{SERVER_URL}/ges/v1.0/{project_id}/graphs/{graph_name}/schema/labels/{label_name}/properties
    {
      "name": "book",
      "properties": [
        {
          "property": {
            "name": "Title",
            "cardinality": "single",
            "dataType": "string"
          }
        },
        {
          "property": {
            "name": "Version",
            "cardinality": "single",
            "dataType": "string"
          }
        },
        {
          "property": {
            "name": "Category",
            "typeName1": "science",
            "typeName2": "literature",
            "typeNameCount": "2",
            "dataType": "enum"
          }
        }
      ]
    }
  • Example request (for 100-billion-edge)
    POST http://{SERVER_URL}/ges/v1.0/{projectId}/graphs/{graphName}/schema?label={labelName} 
    {
      "properties": [
            "Title",
            "Version",
            "Category"
      ]
    }
NOTE:

SERVER_URL: Address for accessing a graph. For details about its value, see Constraints of Using Service Plane APIs.

  • Request body parameter description
    Table 2 Request body parameter description

    Parameter

    Mandatory

    Type

    Description

    name

    Yes

    String

    Name of a label.

    A label name can contain a maximum of 256 characters.

    Only letters, digits, spaces, and special characters %,@,#,$,:,?,*, .,+,- are allowed.

    properties

    Yes

    Json

    Property array to be appended. The array element is property. For details about the parameters, see Table 3.

    properties (for 100-billion-edge)

    Yes

    Json

    Property array to be updated. The array element is property. For details about the parameters, see Table 3.

    Table 3 property parameters

    Parameter

    Mandatory

    Type

    Description

    name

    Yes

    String

    Property name

    1. A property name can contain a maximum of 256 characters.
    2. A property name cannot contain <, >, &, ASCCI 14,15 and 30.
    3. The property under a label must be unique.

    cardinality

    Yes

    String

    Composite type of a property. Possible values:

    • single
    • list
    • set

    dataType

    Yes

    String

    Data type of a property. For details, see the metadata types in Table 1.

    typeNameCount

    No (This parameter is mandatory if dataType is enum.)

    String

    Total number of parameters of the enum type. This parameter controls the typeName quantity.

    typeName*

    No (This parameter is mandatory if dataType is enum.)

    String

    Names of parameters of the enum type. For example, if the value of typeNameCount is 2, the parameter contains typeName1:science and typeName2:literature.

Response

  • Parameter description
    Table 4 Parameter description

    Parameter

    Mandatory

    Type

    Description

    errorMessage

    No

    String

    System prompt. If execution succeeds, this parameter may be left blank. If execution fails, this parameter is used to display the error message.

    errorCode

    No

    String

    System prompt. If execution succeeds, this parameter may be left blank. If execution fails, this parameter is used to display the error code.

    result

    No

    String

    If the execution is successful, the value of result is success.

  • Response example (successful request)
    Http Status Code: 200
    {
     "result": "success"
    }
  • Response example (failed request)
    Http Status Code: 400
     {
      "errorMessage": "label already exists",
      "errorCode": "GES.8801"
     }

Return Value

  • Normal

    200

  • Abnormal
    Table 5 Return code for failed requests

    Return Value

    Description

    400 Bad Request

    Request error.

    401 Unauthorized

    Authentication failed.

    403 Forbidden

    No operation permission.

    404 Not Found

    The requested resource was not found.

    500 Internal Server Error

    Internal service error.

    503 Service Unavailable

    Service unavailable.

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