Updated on 2024-01-04 GMT+08:00

Querying Graph Metadata Details

Function

This API is used to query graph metadata details.

URI

GET /ges/v1.0/{project_id}/graphs/{graph_name}/schema
Table 1 URI parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details about how to obtain the project ID, see Obtaining a Project ID.

graph_name

Yes

String

Graph name

Request Parameters

None

Response Parameters

Table 2 Response body parameters

Parameter

Type

Description

errorMessage

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

String

System prompt code.

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

data

Object

Query results. This parameter is left blank when the request fails.

Table 3 data parameter description

Parameter

Type

Description

schema

List

Definitions of each label and associated property field

Example Request

Query metadata details of a graph.

GET http://{SERVER_URL}/ges/v1.0/{project_id}/graphs/{graph_name}/schema

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

Example Response

Status code: 200

Example response for a successful request
Http Status Code: 200

{
    "data": {
        "schema": [
            {
                "label": "__DEFAULT__",
                "type": "all"
            },
            {
                "label": "friends",
                "type": "edge"
            },
            {
                "label": "movie",
                "type": "vertex",
                "properties": [
                    {
                        "name": "Title",
                        "type": "string",
                        "cardinality": "single"
                    },
                    {
                        "name": "Year",
                        "type": "int",
                        "cardinality": "single"
                    },
                    {
                        "name": "Genres",
                        "type": "string",
                        "cardinality": "set"
                    }
                ]
            },

            {
                "label": "user",
                "type": "vertex",
                "properties": [
                    {
                        "name": "Name",
                        "type": "string",
                        "cardinality": "single"
                    },
                    {
                        "name": "Gender",
                        "probableValue": [
                            "",
                            "F",
                            "M"
                        ],
                        "type": "enum",
                        "cardinality": "single"
                    },
                    {
                        "name": "Age",
                        "probableValue": [
                            "",
                            "Under 18",
                            "18-24",
                            "25-34",
                            "35-44",
                            "45-49",
                            "50-55",
                            "56+"
                        ],
                        "type": "enum",
                        "cardinality": "single"
                    },
                    {
                        "name": "Occupation",
                        "type": "string",
                        "cardinality": "single"
                    },
                    {
                        "name": "Zip-code",
                        "type": "char array",
                        "cardinality": "single
"
                    }
                ]
            },
            {
                "label": "rate",
                "type": "edge",
                "properties": [
                    {
                        "name": "Score",
                        "type": "int",
                        "cardinality": "single"
                    },
                    {
                        "name": "Datetime",
                        "type": "date",
                        "cardinality": "single"
                    }
                ]
            }
        ]
    }
}

Status code: 400

Example response for a failed request

Http Status Code: 400
{
  "errorMessage": "graph [demo] is not found",
  "errorCode": "GES.8003"
}

Status Code

Return Value

Description

400 Bad Request

Request error.

401 Unauthorized

Authorization failed.

403 Forbidden

No operation permissions.

404 Not Found

No resources found.

500 Internal Server Error

Internal server error.

503 Service Unavailable

Service unavailable.

Error Code

See Error Code.