Querying EVS Snapshots

Function

This API is used to query the EVS snapshots.

URI

• URI format

  GET /v3/{project_id}/snapshots

• Parameter description

  Parameter	Mandatory	Description
  project_id	Yes	Specifies the project ID.

• Request filter parameters

  Parameter	Type	Mandatory	Description
  marker	String	No	The ID of the resource from which the pagination query starts. It is the ID of the last resource on the previous page.
  offset	Integer	No	Specifies the offset. NOTE: This parameter is used when snapshots are queried by page and is used together with the limit parameter. For example, there are a total of 30 snapshots. If you set offset to 11 and limit to 10, the queried snapshot starts from the twelfth snapshot, and at most 10 snapshots can be queried at a time.
  limit	Integer	No	Specifies the maximum number of query results that can be returned. The value ranges from 1 to 1000, and the default value is 1000. The returned value cannot exceed this limit. If the tenant has more than 50 snapshots in total, you are advised to use this parameter and set its value to 50 to improve the query efficiency. Examples are provided as follows: GET /v3/xxx/snapshots?limit=50: Queries the 1–50 snapshots. GET /v3/xxx/snapshots?offset=50&limit=50: Queries the 51–100 snapshots.
  name	String	No	Specifies the snapshot name. This parameter does not support fuzzy search. The value can contain a maximum of 255 bytes.
  sort_dir	String	No	Specifies the result sorting order. The default value is desc. desc: indicates the descending order. asc: indicates the ascending order.
  status	String	No	Specifies the snapshot status. For details, see EVS Snapshot Status.
  volume_id	String	No	Specifies the ID of the snapshot's source disk.
  name~	String	No	Specifies the fuzzy search by disk name. This parameter is supported when the request version is 3.31 or later.
  status~	String	No	Specifies the fuzzy search by disk status. This parameter is supported when the request version is 3.31 or later.
  volume_id~	String	No	Specifies the fuzzy search by the ID of the disk that corresponds to the snapshot. This parameter is supported when the request version is 3.31 or later.
  sort_key	String	No	Specifies the sorting query by name (sort_key=name). This parameter is supported when the request version is 3.30 or later. The default sorting order is the descending order.
  with_count	Boolean	No	Specifies to return parameter counts in the response. This parameter indicates the number of snapshots queried. This parameter is in the with_count=true format and is supported when the request version is 3.45 or later. This parameter can be used together with parameters marker, limit, sort_key, sort_dir, or offset in the table. It cannot be used with other filter parameters.

Request

The following example shows how to query the snapshots in the available state.

• Example request

  GET https://{endpoint}/v3/{project_id}/snapshots?status=available

Response

• Parameter description

  Parameter	Type	Description
  snapshots	Object	Specifies the snapshot information. For details, see Parameters in the snapshots field.
  snapshots_links	list<map<String,String>>	Specifies the query position marker in the snapshot list. This parameter is at the same level as parameter snapshots in the response body. This parameter is returned only when parameter limit is specified in the request, and this parameter indicates that only some snapshots are returned in this query.
  count	Object	Specifies the number of records returned in this query.
  error	Object	Specifies the error message returned when an error occurs. For details, see Parameters in the error field.

• Parameters in the snapshots field

  Parameter	Type	Description
  id	String	Specifies the snapshot ID.
  status	String	Specifies the snapshot status. For details, see EVS Snapshot Status.
  name	String	Specifies the snapshot name.
  description	String	Specifies the snapshot description.
  created_at	String	Specifies the time when the snapshot was created. Time format: UTC YYYY-MM-DDTHH:MM:SS.XXXXXX
  metadata	Object	Specifies the snapshot metadata. If metadata contains the __system__enableActive field, the snapshot is automatically created during the backup of a server.
  volume_id	String	Specifies the ID of the snapshot's source disk.
  size	Integer	Specifies the snapshot size, in GB.
  updated_at	String	Specifies the time when the snapshot was updated. Time format: UTC YYYY-MM-DDTHH:MM:SS.XXXXXX

• Parameters in the error field

  Parameter	Type	Description
  message	String	The error message returned if an error occurs.
  code	String	The error code returned if an error occurs. For details about the error code, see Error Codes.

• Example response

  {
      "count": 4, 
      "snapshots": [
          {
              "created_at": "2016-02-16T16:54:14.981520", 
              "description": null, 
              "id": "b836dc3d-4e10-4ea4-a34c-8f6b0460a583", 
              "metadata": { }, 
              "name": "test01", 
              "size": 1, 
              "status": "available", 
              "volume_id": "ba5730ea-8621-4ae8-b702-ff0ffc12c209", 
              "updated_at": null
          }, 
          {
              "created_at": "2016-02-16T16:54:19.475397", 
              "description": null, 
              "id": "83be494d-329e-4a78-8ac5-9af900f48b95", 
              "metadata": { }, 
              "name": "test02", 
              "size": 1, 
              "status": "available", 
              "volume_id": "ba5730ea-8621-4ae8-b702-ff0ffc12c209", 
              "updated_at": null
          }, 
          {
              "created_at": "2016-02-16T16:54:24.367414", 
              "description": null, 
              "id": "dd360f46-7593-4d35-8f2c-5566fd0bd79e", 
              "metadata": { }, 
              "name": "test03", 
              "size": 1, 
              "status": "available", 
              "volume_id": "ba5730ea-8621-4ae8-b702-ff0ffc12c209", 
              "updated_at": null
          }, 
          {
              "created_at": "2016-02-16T16:54:29.766740", 
              "description": null, 
              "id": "4c29796a-8cf4-4482-9afc-e66da9a81240", 
              "metadata": { }, 
              "name": "test04", 
              "size": 1, 
              "status": "available", 
              "volume_id": "ba5730ea-8621-4ae8-b702-ff0ffc12c209", 
              "updated_at": null
          }
      ], 
      "snapshots_links": null
  }

  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.