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ENS:DescribePrePaidInstanceStock

Last Updated:Mar 27, 2026

Queries the specifications of resources that can be purchased in subscription billing mode.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

ens:DescribePrePaidInstanceStock

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

EnsRegionId

string

Yes

The ID of the edge node.

cn-suzhou-telecom

SystemDiskSize

integer

Yes

The size of the system disk. Unit: GB.

100

DataDiskSize

integer

Yes

The size of the data disk. Unit: GB.

20

InstanceSpec

string

Yes

The specification of the instance.

ens.sn1.stiny

Response elements

Element

Type

Description

Example

object

AvaliableCount

integer

The number of resources that you can purchase.

84

Cores

integer

The number of CPU cores.

1

DataDiskSize

integer

The size of the data disk.

20

EnsRegionId

string

The ID of the node.

cn-suzhou-telecom

InstanceSpec

string

The specification of the instance.

ens.sn1.stiny

Memory

integer

The memory size. Unit: GB.

2048

RequestId

string

The request ID.

007833C8-E819-4122-B636-0D48D7BF6DFB

SystemDiskSize

integer

The size of the system disk.

20

ResourceGap

string

The reason why resources are insufficient.

StockNotEnough

Examples

Success response

JSON format

{
  "AvaliableCount": 84,
  "Cores": 1,
  "DataDiskSize": 20,
  "EnsRegionId": "cn-suzhou-telecom",
  "InstanceSpec": "ens.sn1.stiny",
  "Memory": 2048,
  "RequestId": "007833C8-E819-4122-B636-0D48D7BF6DFB",
  "SystemDiskSize": 20,
  "ResourceGap": "StockNotEnough"
}

Error codes

HTTP status code

Error code

Error message

Description

400 NoPermission Permission denied.
400 InvalidParameter.%s The specified field %s invalid. Please check it again.
400 InventoryExceeded The Instance in stock are insufficient,please submit a ticket. The specified instance resource inventory is insufficient, please re-match.
400 CallInterface Call Interface Happen Error. An error occurred when you call the operation.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.