• Elastic Volume Service

evs
  1. Help Center
  2. Elastic Volume Service
  3. API Reference
  4. OpenStack Cinder API v3
  5. EVS Disk
  6. Querying One Piece of Metadata for an EVS Disk

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 /v3/{project_id}/volumes/{volume_id}/metadata/{key}

  • Parameter description

    Parameter

    Mandatory

    Description

    project_id

    Yes

    Specifies the project ID.

    volume_id

    Yes

    Specifies the EVS disk ID.

    key

    Yes

    Specifies the key of the metadata to be queried.

Request

None

Response

  • Parameter description

    Parameter

    Type

    Description

    meta

    map<string, string>

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

  • 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"
        }
    }

Returned Values

  • Normal

    200

Error Codes

For details, see Error Codes.