Use CreatePostpaidInstance to create a pay-as-you-go instance - Web Application Firewall - Alibaba Cloud - Web Application Firewall

Operation description

Each Alibaba Cloud account can have only one WAF instance in the same region (the Chinese mainland or outside the Chinese mainland). Before calling this operation, call the DescribeInstance operation to check whether a WAF instance already exists in the region specified by RegionId. If a pay-as-you-go instance already exists, call the ReleaseInstance operation to release it. If a subscription instance already exists, unsubscribe from it in the WAF console. You can create a new pay-as-you-go instance only after the existing instance is released or unsubscribed.

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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

yundun-waf:CreatePostpaidInstance

create

*All Resource

*

acs:ResourceGroupId

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	No	The region where the WAF instance resides. Valid values: cn-hangzhou: the Chinese mainland. ap-southeast-1: outside the Chinese mainland.	cn-hangzhou
ResourceManagerResourceGroupId	string	No	The Alibaba Cloud resource group ID.	rg-acfm4gh****wela

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	73A4E786-8235-50C0-9631-87C8****4A36
InstanceId	string	The WAF instance ID.	waf_v2_public_cn-x0r****gr1i

Examples

Success response

JSON format

{
  "RequestId": "73A4E786-8235-50C0-9631-87C8****4A36",
  "InstanceId": "waf_v2_public_cn-x0r****gr1i"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.