CreateTopic - Simple Message Queue (formerly MNS) - Alibaba Cloud Documentation Center

Creates a topic.

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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

mns:CreateTopic

create

*Topic

acs:mns:{#regionId}:{#accountId}:/topics/{#TopicName}

mns:EnableLogging

None

Request parameters

Parameter	Type	Required	Description	Example
TopicName	string	Yes	The name of the topic to create.	test
EnableLogging	boolean	No	Specifies whether to enable the Log Management feature. Valid values: true: enabled. false: disabled. Default: false.	true
MaxMessageSize	integer	No	The maximum size of a message body, in bytes. Valid values: 1024 to 65536. Default: 65536.	10240
Tag	array<object>	No	A list of tags for the resource.
	object	No	A list of tags.
Key	string	No	The key of the tag.	tag1
Value	string	No	The tag value.	test
TopicType	string	No	The topic type. Valid values: normal: a standard topic fifo: a FIFO topic	normal

Response elements

Element	Type	Description	Example
	object
RequestId	string	The ID of the request.	06273500-249F-5863-121D-74D51123E62C
Code	integer	The response code.	200
Status	string	The status of the response.	Success
Message	string	The response message.	operation success
Success	boolean	Indicates whether the request was successful.	true
Data	object	The response data.
Code	integer	The response code.	200
Message	string	The response message.	无
Success	boolean	Indicates whether the request was successful.	true

Examples

Success response

JSON format

{
  "RequestId": "06273500-249F-5863-121D-74D51123E62C",
  "Code": 200,
  "Status": "Success",
  "Message": "operation success",
  "Success": true,
  "Data": {
    "Code": 200,
    "Message": "无",
    "Success": true
  }
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.