Help Center/ API Gateway/ Dedicated API Gateway API Reference (Paris Region)/ Dedicated Gateway APIs (V2)/ Request Throttling Policy Management/ Creating a Request Throttling Policy
Updated on 2023-12-19 GMT+08:00
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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.

Calling Method

For details, see Calling APIs.

URI

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

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details about how to obtain it, see Obtaining a Project ID.

instance_id

Yes

String

Gateway ID, which can be obtained from the gateway information on the APIG console.

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is a token.
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 cannot exceed the user call limit. The maximum value is 2,147,483,647. Enter a positive integer.

name

Yes

String

Request throttling policy name. It can contain 3 to 64 characters, starting with a letter. Only letters, digits, and underscores (_) are allowed.

time_unit

Yes

String

Time unit for limiting the number of API calls.

Enumeration values:

  • SECOND

  • MINUTE

  • HOUR

  • DAY

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. Enter a positive integer.

type

No

Integer

Type of the request throttling policy.

  • 1: API-based, limiting the maximum number of times a single API bound to the policy can be called within the specified period.

  • 2: API-shared, limiting the maximum number of times all APIs bound to the policy can be called within the specified period.

Enumeration values:

  • 1

  • 2

enable_adaptive_control

No

String

Indicates whether to enable dynamic request throttling.

  • TRUE

  • FALSE

Currently, this parameter is 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 cannot exceed the Max. API Requests. The maximum value is 2,147,483,647. Enter a positive integer.

time_interval

Yes

Integer

Period of time for limiting the number of API calls. This parameter applies with each API call limit. The maximum value is 2,147,483,647. Enter 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 cannot exceed the API call limit. The maximum value is 2,147,483,647. Enter 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 cannot exceed the user call limit. The maximum value is 2,147,483,647. Enter a positive integer.

name

String

Request throttling policy name. It can contain 3 to 64 characters, starting with a letter. Only letters, digits, and underscores (_) are allowed.

time_unit

String

Time unit for limiting the number of API calls.

Enumeration values:

  • SECOND

  • MINUTE

  • HOUR

  • DAY

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. Enter a positive integer.

type

Integer

Type of the request throttling policy.

  • 1: API-based, limiting the maximum number of times a single API bound to the policy can be called within the specified period.

  • 2: API-shared, limiting the maximum number of times all APIs bound to the policy can be called within the specified period.

Enumeration values:

  • 1

  • 2

enable_adaptive_control

String

Indicates whether to enable dynamic request throttling.

  • TRUE

  • FALSE

Currently, this parameter is 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 cannot exceed the Max. API Requests. The maximum value is 2,147,483,647. Enter a positive integer.

time_interval

Integer

Period of time for limiting the number of API calls. This parameter applies with each API call limit. The maximum value is 2,147,483,647. Enter 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 cannot exceed the API call limit. The maximum value is 2,147,483,647. Enter 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

Indicates whether an excluded request throttling configuration has been created.

  • 1: yes

  • 2: no

Enumeration values:

  • 1

  • 2

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 message.

Status code: 401

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Status code: 403

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Status code: 500

Table 8 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Example Requests

Creating a request throttling policy (max. API requests: 800; max. user requests: 500; max. app requests: 300; max. IP address requests: 600; period: 1s)

{
  "api_call_limits" : 800,
  "app_call_limits" : 300,
  "enable_adaptive_control" : "FALSE",
  "ip_call_limits" : 600,
  "name" : "throttle_demo",
  "remark" : "Total: 800 calls/second; user: 500 calls/second; app: 300 calls/second; IP address: 600 calls/second",
  "time_interval" : 1,
  "time_unit" : "SECOND",
  "type" : 1,
  "user_call_limits" : 500
}

Example Responses

Status code: 201

Created

{
  "name" : "throttle_demo",
  "create_time" : "2020-07-31T08:44:02.205366118Z",
  "remark" : "Total: 800 calls/second; user: 500 calls/second; app: 300 calls/second; IP address: 600 calls/second",
  "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" : 500,
  "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: 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

500

Internal Server Error

Error Codes

See Error Codes.