Query Properties (for 100-billion-edge graphs only)

Function

This API is used to query a property.

URI

• URI format

  GET /ges/v1.0/{project_id}/graphs/{graph_name}/schema?property={propertyName}

• Parameters

  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
  propertyName	Yes	String	Property name

Request

• Request example

  GET http://{SERVER_URL}/ges/v1.0/{project_id}/graphs/{graph_name}/schema?property={propertyName}

  

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

Response

• Parameters

  Table 2 property parameter description

  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 <, >, &, ASCII 14,15 or 30. 3. The property under a label must be unique.
  cardinality	Yes	String	Cardinality type of a property. Possible values: single list set
  type	Yes	String	Data type of a property. For details, see the metadata type in Metadata property constraints.

• Response example (successful request)

  Http Status Code: 200
  {
      "data": {
          "property": {
              "name": "creation",
              "type": "string",
              "cardinality": "single"
          }
      },
      "result": "success"
  }

• Response example (failed request)

  Http Status Code: 400
   {
    "errorMessage":"graph [demo] is not found",
    "errorCode":"GES.8204"
   }

Return Value

• Normal

  200

• Abnormal

  Table 3 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	No resources found.
  500 Internal Server Error	Internal service error.
  503 Service Unavailable	Service unavailable.