Help Center/ Elastic Volume Service/ API Reference/ Cinder API/ Standard Snapshot Management/ Querying the Number of Snapshot Chains
Updated on 2025-08-20 GMT+08:00
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Querying the Number of Snapshot Chains

Function

This API is used to query the number of snapshot chains. Standard snapshots are available only in some regions. To check the supported regions, see the region information shown under "EVS Snapshots" in Function Overview

Calling Method

For details, see Calling APIs.

URI

GET /v5/{project_id}/snapshot-chains/count

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

The project ID.

Constraints

N/A

Range

For details, see Obtaining a Project ID.

Default Value

N/A
Table 2 Query Parameters

Parameter

Mandatory

Type

Description

volume_id

No

String

The ID of the disk that the snapshot chain belongs to.

availability_zone

No

String

The AZ of the disk that the snapshot chain belongs to.

category

No

String

The snapshot chain type.

id

No

String

The snapshot chain ID.

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Definition

The user token.

It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token.

Constraints

N/A

Range

N/A

Default Value

N/A

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

count

Integer

The number of resources.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error

Error object

Definition

The error information returned if an error occurs.

Range

N/A
Table 6 Error

Parameter

Type

Description

code

String

Definition

The error code returned if an error occurs.

Range

For details about the error codes and their meanings, see Error Codes.

message

String

Definition

The error message returned if an error occurs.

Range

N/A

Example Requests

GET https://{endpoint}/v5/{project_id}/snapshot-chains/count

Example Responses

Status code: 200

OK

{
  "count" : 100
}

Status code: 400

Bad Request

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

Status Codes

Status Code

Description

200

OK

400

Bad Request

Error Codes

See Error Codes.