Updated on 2026-05-12 GMT+08:00

Updating a Data Masking Rule

Function

This API is used to update a data masking rule.

Calling Method

For details, see Calling APIs.

URI

PUT /v1/{project_id}/waf/policy/{policy_id}/privacy/{rule_id}

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID. To obtain it, log in to the Huawei Cloud console, click the username, choose My Credentials, and find the project ID in the Projects list.

Constraints

N/A

Range

N/A

Default Value

N/A

policy_id

Yes

String

Definition

Policy ID, which uniquely identifies a protection policy. You can obtain the policy ID by calling the ListPolicy API for querying the list of protection policies.

Constraints

N/A

Range

N/A

Default Value

N/A

rule_id

Yes

String

Definition

Privacy masking rule ID. You can obtain the rule ID by calling the API for querying the list of privacy masking rules (ListPrivacyRule).

Constraints

N/A

Range

N/A

Default Value

N/A

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

enterprise_project_id

No

String

Definition

Obtain the enterprise project ID by calling the ListEnterpriseProject API of Enterprise Project Management Service (EPS). To obtain the resource details in all enterprise projects of a user, set this parameter to all_granted_eps.

Constraints

N/A

Range

  • 0: the default enterprise project.

  • all_granted_eps: all enterprise projects.

  • A specific enterprise project ID: Enter a maximum of 36 characters.

Default Value

0

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

Definition

User token. You can obtain it by calling the IAM API for obtaining a user token. The user token is the value of X-Subject-Token in the response header.

Constraints

N/A

Range

N/A

Default Value

N/A

Content-Type

Yes

String

Definition

Content type.

Constraints

N/A

Range

N/A

Default Value

application/json;charset=utf8

Table 4 Request body parameters

Parameter

Mandatory

Type

Description

url

Yes

String

Definition

URL protected by the data masking rule. The value must be in the standard URL format, for example, /admin/xxx or /admin/*. The characters * indicate a wildcard, which is used to match all sub-paths under the path prefix. For example, if you have a path prefix /admin/, it will match all URL paths starting with /admin/. If the URL parameter is set to /admin/*, all URL paths starting with /admin/ will match the rule.

Constraints

Standard URL string or URL prefix string for matching

Range

N/A

Default Value

N/A

category

Yes

String

Definition

Masked field.

Constraints

N/A

Range

  • params: request parameters

  • cookie: cookie-based web visitors

  • header: custom HTTP headers

  • form: form parameters

Default Value

N/A

index

Yes

String

Definition

Masked field. A masked field will not be displayed in logs.

Constraints

The length cannot exceed 2048 bytes.

Range

N/A

Default Value

N/A

description

No

String

(Optional) A description of the rule.

Response Parameters

Status code: 200

Table 5 Response body parameters

Parameter

Type

Description

id

String

Rule ID.

policyid

String

Policy ID.

timestamp

Long

Time the rule was created. The value is a 13-digit timestamp in ms.

status

Integer

Definition

Rule status, which is used to specify whether a rule is enabled or disabled.

Constraints

N/A

Range

  • 0: disabled

  • 1: enabled

Default Value

N/A

url

String

URL protected by the data masking rule. The value must be in the standard URL format, for example, /admin/xxx or /admin/*. The combination of the backslash () and asterisk (*) indicates the path prefix.

category

String

Definition

Masked field.

Constraints

N/A

Range

  • params: request parameters

  • cookie: cookie-based web visitors

  • header: custom HTTP headers

  • form: form parameters

Default Value

N/A

index

String

Masked field name. Set the field name based on the masked field. The masked field will not be displayed in logs.

description

String

(Optional) A description of the rule.

Status code: 400

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

encoded_authorization_message

String

You can call the decode-authorization-message interface of the STS service to decode the rejection reason. For details, see the STS5 joint commissioning and self-verification. This parameter is returned only when an IAM 5 authentication error occurs.

details

Array of IAM5ErrorDetails objects

The set of error messages reported when a downstream service is invoked. This parameter is returned only when an IAM 5 authentication error occurs.

Table 7 IAM5ErrorDetails

Parameter

Type

Description

error_code

String

Error codes of the downstream service.

error_msg

String

Error messages of the downstream service.

Status code: 401

Table 8 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

encoded_authorization_message

String

You can call the decode-authorization-message interface of the STS service to decode the rejection reason. For details, see the STS5 joint commissioning and self-verification. This parameter is returned only when an IAM 5 authentication error occurs.

details

Array of IAM5ErrorDetails objects

The set of error messages reported when a downstream service is invoked. This parameter is returned only when an IAM 5 authentication error occurs.

Table 9 IAM5ErrorDetails

Parameter

Type

Description

error_code

String

Error codes of the downstream service.

error_msg

String

Error messages of the downstream service.

Status code: 500

Table 10 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

encoded_authorization_message

String

You can call the decode-authorization-message interface of the STS service to decode the rejection reason. For details, see the STS5 joint commissioning and self-verification. This parameter is returned only when an IAM 5 authentication error occurs.

details

Array of IAM5ErrorDetails objects

The set of error messages reported when a downstream service is invoked. This parameter is returned only when an IAM 5 authentication error occurs.

Table 11 IAM5ErrorDetails

Parameter

Type

Description

error_code

String

Error codes of the downstream service.

error_msg

String

Error messages of the downstream service.

Example Requests

Update the data masking rules specified by the following details. Project ID: project_id, policy ID: policy_id, rule ID: rule_id; URL to be protected: /demo; masked field: cookie; field name: demo1; and rule description: demo.

PUT https://{Endpoint}/v1/{project_id}/waf/policy/{policy_id}/privacy/{rule_id}?enterprise_project_id=0

{
  "url" : "/demo",
  "category" : "cookie",
  "index" : "demo1",
  "description" : "demo"
}

Example Responses

Status code: 200

Request succeeded.

{
  "id" : "97e4d35f375f4736a21cccfad77613eb",
  "policyid" : "38ff0cb9a10e4d5293c642bc0350fa6d",
  "description" : "demo",
  "url" : "/demo",
  "category" : "cookie",
  "index" : "demo1"
}

SDK Sample Code

The SDK sample code is as follows.

Update the data masking rules specified by the following details. Project ID: project_id, policy ID: policy_id, rule ID: rule_id; URL to be protected: /demo; masked field: cookie; field name: demo1; and rule description: demo.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.waf.v1.region.WafRegion;
import com.huaweicloud.sdk.waf.v1.*;
import com.huaweicloud.sdk.waf.v1.model.*;


public class UpdatePrivacyRuleSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        WafClient client = WafClient.newBuilder()
                .withCredential(auth)
                .withRegion(WafRegion.valueOf("<YOUR REGION>"))
                .build();
        UpdatePrivacyRuleRequest request = new UpdatePrivacyRuleRequest();
        request.withPolicyId("{policy_id}");
        request.withRuleId("{rule_id}");
        UpdatePrivacyRuleRequestBody body = new UpdatePrivacyRuleRequestBody();
        body.withDescription("demo");
        body.withIndex("demo1");
        body.withCategory(UpdatePrivacyRuleRequestBody.CategoryEnum.fromValue("cookie"));
        body.withUrl("/demo");
        request.withBody(body);
        try {
            UpdatePrivacyRuleResponse response = client.updatePrivacyRule(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

Update the data masking rules specified by the following details. Project ID: project_id, policy ID: policy_id, rule ID: rule_id; URL to be protected: /demo; masked field: cookie; field name: demo1; and rule description: demo.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkwaf.v1.region.waf_region import WafRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkwaf.v1 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = WafClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(WafRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = UpdatePrivacyRuleRequest()
        request.policy_id = "{policy_id}"
        request.rule_id = "{rule_id}"
        request.body = UpdatePrivacyRuleRequestBody(
            description="demo",
            index="demo1",
            category="cookie",
            url="/demo"
        )
        response = client.update_privacy_rule(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

Update the data masking rules specified by the following details. Project ID: project_id, policy ID: policy_id, rule ID: rule_id; URL to be protected: /demo; masked field: cookie; field name: demo1; and rule description: demo.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    waf "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/waf/v1"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/waf/v1/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/waf/v1/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth, err := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        SafeBuild()

    if err != nil {
        fmt.Println(err)
        return
    }

    hcClient, err := waf.WafClientBuilder().
         WithRegion(region.ValueOf("<YOUR REGION>")).
         WithCredential(auth).
         SafeBuild()


    if err != nil {
        fmt.Println(err)
        return
    }

    client := waf.NewWafClient(hcClient)

    request := &model.UpdatePrivacyRuleRequest{}
	request.PolicyId = "{policy_id}"
	request.RuleId = "{rule_id}"
	descriptionUpdatePrivacyRuleRequestBody:= "demo"
	request.Body = &model.UpdatePrivacyRuleRequestBody{
		Description: &descriptionUpdatePrivacyRuleRequestBody,
		Index: "demo1",
		Category: model.GetUpdatePrivacyRuleRequestBodyCategoryEnum().COOKIE,
		Url: "/demo",
	}
	response, err := client.UpdatePrivacyRule(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code

Description

200

Request succeeded.

400

Request failed.

401

The token does not have required permissions.

500

Internal server error.

Error Codes

See Error Codes.