Help Center/ Elastic Cloud Server/ API Reference/ Native OpenStack Nova APIs/ Flavor Management/ Querying the extra_specs Value for an ECS Flavor
Updated on 2025-09-19 GMT+08:00
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Querying the extra_specs Value for an ECS Flavor

Function

This API is used to query the extra_specs value for a specified ECS flavor.

URI

GET /v2.1/{project_id}/flavors/{flavor_id}/os-extra_specs

Table 1 describes the parameters in the URI.
Table 1 Parameter description

Parameter

Mandatory

Description

project_id

Yes

Specifies the project ID.

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

flavors_id

Yes

Specifies the flavor ID.

Request

None

Response

Table 2 describes the response parameters.

Table 2 Response parameters

Parameter

Type

Description

extra_specs

Map<String,String>

Specifies the key-value pair of an ECS flavor.

For details about the returned fields, see the os_extra_specs field description in Table 6.

Example Request

Query the extra_specs details of a specified ECS flavor.

GET https://{endpoint}/v2.1/743b4c0428d94531b9f2add666642e6b/flavors/c3.2xlarge.2/os-extra_specs

Example Response

{
    "extra_specs": {
        "ecs:performancetype": "computingv3",
        "resource_type": "IOoptimizedC3_2"
    }
}

Returned Values

See Returned Values for General Requests.

Parent topic: Flavor Management