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OpenSearch:ListFunctionInstances

Last Updated:Dec 09, 2025

Lists all instances that match the specified conditions.

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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

opensearch:DescribeFunction

get

*FunctionInstance

acs:opensearch:{#regionId}:{#accountId}:apps/{#AppGroupId}

None None

Request syntax

GET /v4/openapi/app-groups/{appGroupIdentity}/functions/{functionName}/instances HTTP/1.1

Path Parameters

Parameter

Type

Required

Description

Example

appGroupIdentity

string

Yes

The name of the application.

app_group_name

functionName

string

Yes

The name of the feature.

ctr

Request parameters

Parameter

Type

Required

Description

Example

modelType

string

No

The type of the model.

tf_checkpoint

functionType

string

No

The type of the feature.

"PAAS"

source

string

No

The source of the instance. Valid values:

  • builtin: The instance is created by the system.

  • user: The instance is created by the user. This is the default value.

  • all: All instances.

user

pageNumber

integer

No

The page number. The default value is 1.

1

pageSize

integer

No

The number of entries per page. The default value is 10.

10

output

string

No

The level of detail for the returned information. Valid values:

  • normal: Displays information such as createParameters and cron. This is the default value.

  • simple: Displays only basic information.

  • detail: Returns the details of the training task.

normal

Examples

GET /v4/openapi/app-groups/my-app/functions/ctr/instances?source=all&output=simple

Response elements

Element

Type

Description

Example

object

The response body.

Status

string

The status of the request.

"OK"

HttpCode

integer

The HTTP status code.

200

TotalCount

integer

The total number of entries.

2

RequestId

string

The ID of the request.

A4D487A9-A456-5AA5-A9C6-B7BF2889CF74

Message

string

The error message. This parameter is empty if the request is successful.

instance not exist.

Code

string

The error code. This parameter is empty if the request is successful.

Instance.NotExist

Result

array<object>

The list of instances.

[]

array<object>

The information about the instance.

{}

Belongs

object

The ownership information of the instance.

{}

Category

string

The category.

"general"

Domain

string

The industry.

"ecommerce"

Language

string

The language code.

"zh"

CreateParameters

array<object>

The list of parameters for the instance.

[]

object

The parameter body.

{}

Name

string

The name of the parameter.

"param1"

Value

string

The value of the parameter.

"value1"

UsageParameters

array<object>

The list of parameters in use.

object

The parameter body.

Name

string

The name of the parameter.

use_param1

Value

string

The value of the parameter.

value1

CreateTime

integer

The time when the instance was created.

1234

Cron

string

The training schedule. This is a cron expression in the format of Minutes Hours DayofMonth Month DayofWeek. If this parameter is empty, periodic training is not performed.

0 3 ? * 0,1,3,5 (周日,周一,周三,周五凌晨3点)

Description

string

The description.

" "

ExtendInfo

string

The extended information. This is a JSON string that contains information such as model evaluation results and error messages.

"{\"dataReport\":{},\"errors\":{}}"

FunctionName

string

The name of the feature.

"ctr"

FunctionType

string

The type of the feature.

"PAAS"

InstanceName

string

The name of the instance.

"ctr_test"

ModelType

string

The type of the model.

"tf_checkpoint"

Source

string

The source of the instance. Valid values:

  • user: The instance is created by the user.

  • builtin: The instance is created by the system.

"user"

Status

string

The status of the instance. Valid values:

  1. unavailable: No model is available. You must train a model before you can use the instance.

  2. available: The instance is available.

available

VersionId

integer

The version ID.

123

Latency

integer

The request latency, in milliseconds.

123

Sample success responses

{
    "status": "OK",
    "requestId": "A4D487A9-A456-5AA5-A9C6-B7BF2889CF74",
    "httpCode": 200,
    "code": "",
    "message": "",
    "latency": 123,
    "totalCount": 2,
    "result": [
        {
            "versionId": 100,
            "instanceName": "instance_1",
            "functionName": "hot",
            "functionType": "PAAS",
            "modelType": "offline_inference",
            "description": "",
            "status": "available",
            "belongs": {
                "domain": "ecommerce",
                "category": "general",
                "language": "zh"
            },
            "createTime": 100010,
            "source": "user"
        },
        {
            "versionId": 100,
            "instanceName": "instance_2",
            "functionName": "hot",
            "functionType": "PAAS",
            "modelType": "offline_inference",
            "description": "",
            "status": "available",
            "belongs": {
                "domain": "ecommerce",
                "category": "general",
                "language": "zh"
            },
            "createTime": 200020,
            "source": "user",
            "default": true
        }
    ]
}

Examples

Success response

JSON format

{
  "Status": "\"OK\"",
  "HttpCode": 200,
  "TotalCount": 2,
  "RequestId": "A4D487A9-A456-5AA5-A9C6-B7BF2889CF74",
  "Message": "instance not exist.",
  "Code": "Instance.NotExist",
  "Result": [
    {
      "Belongs": {
        "Category": "\"general\"",
        "Domain": "\"ecommerce\"",
        "Language": "\"zh\"\t"
      },
      "CreateParameters": [
        {
          "Name": "\"param1\"",
          "Value": "\"value1\""
        }
      ],
      "UsageParameters": [
        {
          "Name": "use_param1",
          "Value": "value1"
        }
      ],
      "CreateTime": 1234,
      "Cron": "0 3 ? * 0,1,3,5 (周日,周一,周三,周五凌晨3点)",
      "Description": "\" \"",
      "ExtendInfo": "\"{\\\"dataReport\\\":{},\\\"errors\\\":{}}\"",
      "FunctionName": "\"ctr\"",
      "FunctionType": "\"PAAS\"",
      "InstanceName": "\"ctr_test\"",
      "ModelType": "\"tf_checkpoint\"",
      "Source": "\"user\"",
      "Status": "available",
      "VersionId": 123
    }
  ],
  "Latency": 123
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.