All Products
Search
Document Center

OpenSearch:UpdateFunctionDefaultInstance

Last Updated:Dec 09, 2025

Sets the default algorithm instance for the specified application. The new algorithm instance automatically overwrites the previously set default instance. If no instance is specified, the default instance is canceled.

Try it now

Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

Test

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:WriteFunction

update

*FunctionInstance

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

None None

Request syntax

PUT /v4/openapi/app-groups/{appGroupIdentity}/functions/{functionName}/default-instance 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 function.

pop

Request parameters

Parameter

Type

Required

Description

Example

Body

object

No

The request body.

{}

instanceName

string

No

The name of the instance.

"pop_test"

Response elements

Element

Type

Description

Example

object

The response.

Status

string

The request status.

OK

HttpCode

integer

The HTTP status code.

200

RequestId

string

The ID of the request.

A4D487A9-A456-5AA5-A9C6-B7BF2889CF74

Message

string

The error message.

success

Code

string

The error code.

DefaultInstance.SetFail

Latency

integer

The time consumed for the request, in milliseconds.

123

Examples

Success response

JSON format

{
  "Status": "OK",
  "HttpCode": 200,
  "RequestId": "A4D487A9-A456-5AA5-A9C6-B7BF2889CF74",
  "Message": "success",
  "Code": "DefaultInstance.SetFail",
  "Latency": 123
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.