All Products
Search
Document Center

Microservices Engine:CreateNamespace

Last Updated:Dec 19, 2025

Creates a namespace for Microservices Governance.

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

mse:CreateNamespace

get

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

Name

string

No

The name of the namespace that you want to create for Microservices Governance.

myNamespace

Describe

string

No

The description of the namespace that you want to create for Microservices Governance.

Tag

array

No

The tag.

object

No

The list of tags to be added. The list can contain up to 20 items.

Key

string

No

The tag key of the resource. You cannot specify an empty string as a tag key. The tag key can be up to 128 characters in length and cannot start with aliyun or acs:. It cannot contain http:// or https://.

Value

string

No

The tag value. The tag value can be up to 128 characters in length and cannot start with aliyun or acs:. It cannot contain http:// or https://.

AcceptLanguage

string

No

The language in which you want the results to be displayed. Valid values: zh (default): Chinese. en: English

zh

Response elements

Parameter

Type

Description

Example

object

Message

string

The error message returned.

RequestId

string

The request ID

D1F1A6F3-7E03-5EAD-B3F1-123456789ABC

ErrorCode

string

The error code.

mse-100-000

Success

boolean

Indicates whether the request was successful

true

Data

object

The response data.

Region

string

The region to which the namespace belongs.

cn-hangzhou

Namespace

string

The name of the namespace.

myNamespace

Examples

Success response

JSON format

{
  "Message": "",
  "RequestId": "D1F1A6F3-7E03-5EAD-B3F1-123456789ABC",
  "ErrorCode": "mse-100-000",
  "Success": true,
  "Data": {
    "Region": "cn-hangzhou",
    "Namespace": "myNamespace"
  }
}

Error codes

HTTP status code

Error code

Error message

Description

400 IllegalRequest Invalid request:%s Invalid request: %s
400 InvalidParameter Parameter error:%s Request parameter error: %s
500 InternalError Console error. Try again later:%s Console error. Try again later: %s
403 NoPermission You are not authorized to perform this operation:%s You do not have the permission to use this interface:%s
404 NotFound Not found:%s The resource does not exist:%s

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.