Help Center/ ROMA Connect/ API Reference/ Service Integration APIs/ Request Throttling Policy Management/ Creating a Request Throttling Policy

Updated on 2023-06-29 GMT+08:00

View PDF

Creating a Request Throttling Policy

Function

After an API goes online, the system attaches a request throttling policy to it by default. The API provider can change the request throttling policy based on the service capabilities and load of the API. A request throttling policy restricts the maximum number of times an API can be called within a specified period.

URI

POST /v2/{project_id}/apic/instances/{instance_id}/throttles

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Appendix > Obtaining a Project ID in the ROMA Connect API Reference.
instance_id	Yes	String	Instance ID.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token, which can be obtained by calling the IAM API (value of X-Subject-Token in the response header).

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
app_call_limits	No	Integer	Maximum number of times the API can be accessed by an app within the same period. The value of this parameter must be less than that of user_call_limits. The maximum value is 2,147,483,647. The value is a positive integer.
name	Yes	String	Request throttling policy name. The value contains 3 to 64 characters, including letters, digits, and underscores (_). It must start with a letter.
time_unit	Yes	String	Time unit for limiting the number of API calls.
remark	No	String	Description of the request throttling policy, which can contain a maximum of 255 characters.
api_call_limits	Yes	Integer	Maximum number of times an API can be accessed within a specified period. The value of this parameter cannot exceed the default limit 200 TPS. You can change the default limit to meet service requirements. The maximum value is 2,147,483,647. The value is a positive integer.
type	No	Integer	Type of the request throttling policy. 1: basic, limiting the maximum number of times a single API bound to the policy can be called within the specified period. 2: shared, limiting the maximum number of times all APIs bound to the policy can be called within the specified period.
enable_adaptive_control	No	String	Whether to enable dynamic request throttling. TRUE FALSE This parameter is currently not supported.
user_call_limits	No	Integer	Maximum number of times the API can be accessed by a user within the same period. The value of this parameter must be less than or equal to that of api_call_limits. The maximum value is 2,147,483,647. The value is a positive integer.
time_interval	Yes	Integer	Period of time for limiting the number of API calls. This parameter applies with each of the preceding three API call limits. The maximum value is 2,147,483,647. The value is a positive integer.
ip_call_limits	No	Integer	Maximum number of times the API can be accessed by an IP address within the same period. The value of this parameter must be less than that of api_call_limits. The maximum value is 2,147,483,647. The value is a positive integer.

Response Parameters

Status code: 201

**Table 4** Response body parameters
Parameter	Type	Description
app_call_limits	Integer	Maximum number of times the API can be accessed by an app within the same period. The value of this parameter must be less than that of user_call_limits. The maximum value is 2,147,483,647. The value is a positive integer.
name	String	Request throttling policy name. The value contains 3 to 64 characters, including letters, digits, and underscores (_). It must start with a letter.
time_unit	String	Time unit for limiting the number of API calls.
remark	String	Description of the request throttling policy, which can contain a maximum of 255 characters.
api_call_limits	Integer	Maximum number of times an API can be accessed within a specified period. The value of this parameter cannot exceed the default limit 200 TPS. You can change the default limit to meet service requirements. The maximum value is 2,147,483,647. The value is a positive integer.
type	Integer	Type of the request throttling policy. 1: basic, limiting the maximum number of times a single API bound to the policy can be called within the specified period. 2: shared, limiting the maximum number of times all APIs bound to the policy can be called within the specified period.
enable_adaptive_control	String	Whether to enable dynamic request throttling. TRUE FALSE This parameter is currently not supported.
user_call_limits	Integer	Maximum number of times the API can be accessed by a user within the same period. The value of this parameter must be less than or equal to that of api_call_limits. The maximum value is 2,147,483,647. The value is a positive integer.
time_interval	Integer	Period of time for limiting the number of API calls. This parameter applies with each of the preceding three API call limits. The maximum value is 2,147,483,647. The value is a positive integer.
ip_call_limits	Integer	Maximum number of times the API can be accessed by an IP address within the same period. The value of this parameter must be less than that of api_call_limits. The maximum value is 2,147,483,647. The value is a positive integer.
id	String	Request throttling policy ID.
bind_num	Integer	Number of APIs to which the request throttling policy has been bound.
is_inclu_special_throttle	Integer	Whether a special throttling configuration has been created: 1: yes 2: no
create_time	String	Creation time.

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 401

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 403

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 404

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Status code: 500

**Table 9** Response body parameters
Parameter	Type	Description
error_code	String	Error code.
error_msg	String	Error description.

Example Requests

{
  "api_call_limits" : 800,
  "app_call_limits" : 300,
  "enable_adaptive_control" : "FALSE",
  "ip_call_limits" : 600,
  "name" : "throttle_demo",
  "remark" : "Throttling Policy 1",
  "time_interval" : 1,
  "time_unit" : "SECOND",
  "type" : 1,
  "user_call_limits" : 0
}

Example Responses

Status code: 201

Created

{
  "name" : "throttle_demo",
  "create_time" : "2020-07-31T08:44:02.205366118Z",
  "remark" : "Throttling Policy 1",
  "type" : 1,
  "time_interval" : 1,
  "ip_call_limits" : 600,
  "app_call_limits" : 300,
  "time_unit" : "SECOND",
  "api_call_limits" : 800,
  "id" : "3437448ad06f4e0c91a224183116e965",
  "user_call_limits" : 0,
  "enable_adaptive_control" : "FALSE",
  "bind_num" : 0,
  "is_inclu_special_throttle" : 2
}

Status code: 400

Bad Request

{
  "error_code" : "APIG.2011",
  "error_msg" : "Invalid parameter value,parameterName:name. Please refer to the support documentation"
}

Status code: 401

Unauthorized

{
  "error_code" : "APIG.1002",
  "error_msg" : "Incorrect token or token resolution failed"
}

Status code: 403

Forbidden

{
  "error_code" : "APIG.1005",
  "error_msg" : "No permissions to request this method"
}

Status code: 404

Not Found

{
  "error_code" : "APIG.3030",
  "error_msg" : "The instance does not exist;id:f0fa1789-3b76-433b-a787-9892951c620ec"
}

Status code: 500

Internal Server Error

{
  "error_code" : "APIG.9999",
  "error_msg" : "System error"
}

Status Codes

Status Code	Description
201	Created
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Error Codes

See Error Codes.

Parent topic: Request Throttling Policy Management

Previous topic: Request Throttling Policy Management

Next topic: Modifying a Request Throttling Policy

Feedback

Was this page helpful?

Helpful Not helpful

Provide feedback

Thank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.

The system is busy. Please try again later.

Which of the following issues have you encountered?

Content is inconsistent with the product UI

Unclear descriptions

Lack of examples or code

Incorrect steps

Can't find what I need

Lack of best practices

Feedback (optional)

0/500

Select at least one type of issue, and enter your comments or suggestions.

Enter a maximum of 500 characters.

Submit Cancel

For any further questions, feel free to contact us through the chatbot.

Chatbot