Updated on 2022-02-22 GMT+08:00

Querying One Piece of Metadata for an EVS Disk

Function

This API is used to query one piece of the EVS disk metadata.

URI

  • URI format

    GET /v2/{project_id}/volumes/{volume_id}/metadata/{key}

  • Parameter description

    Parameter

    Mandatory

    Description

    project_id

    Yes

    Specifies the project ID.

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

    volume_id

    Yes

    Specifies the disk ID.

    key

    Yes

    Specifies the key of the piece of metadata to be queried.

Request

  • Example request
    GET https://{endpoint}/v2/{project_id}/volumes/b104b8db-170d-441b-897a-3c8ba9c5a214/metadata/value1

Response

  • Parameter description

    Parameter

    Type

    Description

    meta

    Object

    Specifies a piece of the disk metadata, which is made up of a key-value pair.

    error

    Object

    Specifies the error message returned when an error occurs. For details, see Parameters in the error field.

  • Parameters in the error field

    Parameter

    Type

    Description

    message

    String

    Specifies the error message returned when an error occurs.

    code

    String

    Specifies the error code returned when an error occurs.

    For details about the error code, see Error Codes.

  • Example response
    {
        "meta": {
            "key1": "value1"
        }
    }

    or

    {
        "error": {
            "message": "XXXX", 
            "code": "XXX"
        }
    }

    In the preceding example, error indicates a general error, for example, badrequest or itemNotFound. An example is provided as follows:

    {
        "itemNotFound": {
            "message": "XXXX", 
            "code": "XXX"
        }
    }

Status Codes

  • Normal

    200

Error Codes

For details, see Error Codes.