Adding Metadata

Function

This API is used to add metadata.

URI

POST /v2/{project_id}/graphs/metadatas

**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.

Request Parameters

**Table 2** Request header parameter
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. The token can be obtained by calling the IAM API. (The token is the value of X-Subject-Token in the response header.)

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
metadata_path	Yes	String	Path for storing the metadata
name	Yes	String	Metadata name, which contains 1 to 64 characters consisting of only letters, digits, and underscores (_)
description	Yes	String	Metadata description
is_overwrite	Yes	Boolean	Whether to overwrite the file.
ges_metadata	Yes	ges_metadata object	Object for storing metadata message information.

**Table 4** ges_metadata
Parameter	Mandatory	Type	Description
labels	Yes	Array of labels objects	Label list

**Table 5** labels
Parameter	Mandatory	Type	Description
name	No	String	Name of a label
properties	No	Array of Map<String,String> objects	Label property map

Response Parameters

Status code: 200

**Table 6** Response body parameters
Parameter	Type	Description
id	String	Metadata ID
name	String	Metadata name

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_code	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.
error_msg	String	System prompt code. If execution succeeds, this parameter may be left blank. If execution fails, this parameter is used to display the error message.

Example Request

Add metadata. The metadata is stored in devdata/unionsdk/unionsdk_test.xml. The metadata does not overwrite existing data, the metadata name is unionsdk_test, and the metadata description is test.

POST https://Endpoint/v2/{project_id}/graphs/metadatas

{
  "metadata_path" : "devdata/unionsdk/unionsdk_test.xml",
  "is_overwrite" : false,
  "name" : "unionsdk_test",
  "description": " test",
  "ges_metadata" : {
    "labels" : [ {
      "name" : "friends"
    }, {
      "name" : "movie",
      "properties" : [ {
        "dataType" : "string",
        "name" : "ChineseTitle",
        "cardinality" : "single"
      }, {
        "dataType" : "int",
        "name" : "Year",
        "cardinality" : "single"
      }, {
        "dataType" : "string",
        "name" : "Genres",
        "cardinality" : "set"
      } ]
    }, {
      "name" : "user",
      "properties" : [ {
        "dataType" : "string",
        "name" : "ChineseName",
        "cardinality" : "single"
      }, {
        "typeName1" : "F",
        "typeName2" : "M",
        "typeNameCount" : "2",
        "dataType" : "enum",
        "name" : "Gender",
        "cardinality" : "single"
      }, {
        "typeName1" : "Under 18",
        "typeName2" : "18-24",
        "typeName3" : "25-34",
        "typeName4" : "35-44",
        "typeNameCount" : "7",
        "dataType" : "enum",
        "name" : "Age",
        "typeName5" : "45-49",
        "typeName6" : "50-55",
        "cardinality" : "single",
        "typeName7" : "56+"
      }, {
        "dataType" : "string",
        "name" : "Occupation",
        "cardinality" : "single"
      }, {
        "dataType" : "char array",
        "name" : "Zip-code",
        "maxDataSize" : "12",
        "cardinality" : "single"
      } ]
    }, {
      "name" : "rate",
      "properties" : [ {
        "dataType" : "int",
        "name" : "Score",
        "cardinality" : "single"
      }, {
        "dataType" : "date",
        "name" : "Datetime",
        "cardinality" : "single"
      } ]
    } ]
  }
}

Example Response

Status code: 200

Example response for a successful request

{
  "id" : "ff8080815f9a3c84015f9a438ff70001",
  "name" : "movie_schema"
}

Status code: 400

Example response for a failed request

{
  "error_msg" : "The metadata file already exists.",
  "error_code" : "GES.2067"
}

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