Help Center/ Web Application Firewall/ API Reference/ APIs/ Managing Websites Protected in Cloud Mode/ Updating Configurations of Domain Names Protected with Cloud WAF

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

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Updating Configurations of Domain Names Protected with Cloud WAF

Function

This API is used to update configurations of domain names protected with cloud WAF. The new origin server information will overwrite the old origin server information. If you want to keep the old information, provide them as new data. You can provide only the updated information in the request body.

Calling Method

For details, see Calling APIs.

URI

PATCH /v1/{project_id}/waf/instance/{instance_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	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.
instance_id	Yes	String	Domain name ID. You can call the ListHost API to obtain the domain name ID.

**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. It can be obtained by calling the IAM API (value of X-Subject-Token in the response header). Constraints N/A Range N/A Default Value N/A
Content-Type	Yes	String	Content type.

**Table 4** Request body parameters
Parameter	Mandatory	Type	Description
proxy	No	Boolean	Whether the protected domain name uses a proxy. false: No proxies are used. true: At least one proxy is used.
certificateid	No	String	HTTPS certificate ID. You can call the ListCertificates API to obtain it. This parameter is not required if the client protocol is HTTP. This parameter is mandatory if the client protocol is HTTPS.
certificatename	No	String	Certificate name. This parameter is not required if the client protocol is HTTP. This parameter is mandatory if the client protocol is HTTPS.
server	No	Array of CloudWafServer objects	Origin server configuration of the protected domain name
tls	No	String	Minimum TLS version (TLS v1.0, TLS v1.1, or TLS v1.2). The default value is TLS v1.0. Requests that do not meet the minimum TLS version cannot access the website.
cipher	No	String	Cipher suite. Options: cipher_1, cipher_2, cipher_3, cipher_4, cipher_default. cipher_1: The cryptographic algorithm is ECDHE-ECDSA-AES256-GCM-SHA384:HIGH:!MEDIUM:!LOW:!aNULL:!eNULL:!DES:!MD5:!PSK:!RC4:!kRSA:!SRP:!3DES:!DSS:!EXP:!CAMELLIA:@STRENGTH cipher_2: The cryptographic algorithm is EECDH+AESGCM:EDH+AESGCM cipher_3: The cryptographic algorithm is ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!DH:!EDH cipher_4: The cryptographic algorithm is ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:AES256-SHA256:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!EDH cipher_5: The cryptographic algorithm is AES128-SHA:AES256-SHA:AES128-SHA256:AES256-SHA256:HIGH:!MEDIUM:!LOW:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4:!DHE:@STRENGTH cipher_6: The cryptographic algorithm is ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256 cipher_default: The cryptographic algorithm is ECDHE-RSA-AES256-SHA384:AES256-SHA256:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!DH:!EDH:!AESGCM
http2_enable	No	Boolean	Whether HTTP/2 is supported. true: HTTP/2 is supported. false: HTTP/2 is not supported.
ipv6_enable	No	Boolean	Whether to enable IPv6 protection. Only the professional and enterprise editions support IPv6 protection. true: IPv6 protection is enabled. false: IPv6 protection is disabled.
web_tag	No	String	Website name, which is the website name displayed on the domain name details page on the WAF console.
exclusive_ip	No	Boolean	Whether a dedicated IP address is used. true: A dedicated IP address is used. false: No dedicated IP addresses are used.
paid_type	No	String	Definition Package payment mode. The value of this parameter specifies the billing mode of the package. Constraints N/A Range prePaid: yearly/monthly billing postPaid: pay-per-use billing Default Value prePaid
block_page	No	BlockPage object	Alarm page configuration
traffic_mark	No	TrafficMark object	Traffic identifier
flag	No	Flag object	Special identifier, which is used on the console.
extend	No	Map<String,String>	Extended field, which is used to store some configuration information of the protected domain name.
circuit_breaker	No	CircuitBreaker object	Circuit breaker configuration
timeout_config	No	TimeoutConfig object	Timeout settings
forward_header_map	No	Map<String,String>	Field forwarding configuration. WAF inserts the added fields into the header and forwards the header to the origin server. The key cannot be the same as the native Nginx field. The options of Value are as follows: $time_local $request_id $connection_requests $tenant_id $project_id $remote_addr $remote_port $scheme $request_method $http_host $request_length $ssl_server_name $ssl_protocol $ssl_curves $ssl_session_reused -$origin_uri

**Table 5** CloudWafServer
Parameter	Mandatory	Type	Description
front_protocol	Yes	String	Definition Protocol used by the client to access the origin server of the protected domain name. Constraints N/A Range HTTP: HTTP protocol HTTPS: HTTPS protocol Default Value N/A
back_protocol	Yes	String	Definition Protocol used by WAF to forward client requests to the origin server of the protected domain name. Constraints N/A Range HTTP: HTTP protocol HTTPS: HTTPS protocol Default Value N/A
weight	No	Integer	Weight of the origin server. The load balancing algorithm allocates requests to the origin server based on the weight. The default value is 1. This parameter is not required for cloud mode.
address	Yes	String	IP address of origin server accessed by the client.
port	Yes	Integer	Port used by WAF to forward client requests to the origin server.
type	Yes	String	Type of the origin server address: IPv4 or IPv6.

**Table 6** BlockPage
Parameter	Mandatory	Type	Description
template	Yes	String	Template name. default: the default page. custom: the custom alarm page. redirect: redirection.
custom_page	No	CustomPage object	Custom alarm page.
redirect_url	No	String	URL of the redirection page.

**Table 7** CustomPage
Parameter	Mandatory	Type	Description
status_code	Yes	String	Response status code.
content_type	Yes	String	Definition Content type of the custom alarm page. Constraints N/A Range text/html text/xml application/json Default Value N/A
content	Yes	String	Configure the page content based on the selected page type. For details, see the Web Application Firewall User Guide.

**Table 8** TrafficMark
Parameter	Mandatory	Type	Description
sip	No	Array of strings	IP tag: The HTTP request header field of the original client IP address.
cookie	No	String	Session tag, which is used for the cookie-based known attack rules. This tag must be configured for cookie-based known attack rules.
params	No	String	User tag. This tag is used to block possibly malicious requests based on the Params attribute of an attack source. This tag must be configured for Params-based known attack rules.

**Table 9** Flag
Parameter	Mandatory	Type	Description
pci_3ds	No	String	Whether to enable PCI 3DS compliance check. true: enabled false: disabled
pci_dss	No	String	Whether to enable PCI DSS compliance check. true: enabled false: disabled
cname	No	String	old: The old CNAME record is used. new: The new CNAME record is used.
is_dual_az	No	String	Whether IPv6 is enabled for the domain name. true: enabled false: disabled
ipv6	No	String	Whether IPv6 is enabled for the domain name. true: enabled false: disabled

**Table 10** CircuitBreaker
Parameter	Mandatory	Type	Description
switch	No	Boolean	Breakdown protection switch that controls whether to enable connection protection. true: Connection protection is enabled. false: Connection protection is disabled.
dead_num	No	Integer	502/504 error quantity threshold. The threshold is based on the total 502/504 errors occurred every 30s.
dead_ratio	No	Number	Percentage of 502/504 errors (%). When the percentage of 502/504 errors in the total number of requests reaches the specified value and the time threshold, breakdown protection is triggered.
block_time	No	Integer	Protection period upon the first breakdown. During this period, WAF stops forwarding client requests.
superposition_num	No	Integer	The maximum multiplier you can use for consecutive breakdowns. The number of breakdowns is counted from 0 every time the accumulated breakdown protection duration reaches 3,600s. For example, the initial protection time is set to 180s, and the continuous trigger addition coefficient is set to 3. If the number of triggering times is 2 (that is, less than 3), the protection period is 360s. If the number of triggering times is 3 or the above, the protection period is 540s. If the duration of all protection periods exceeds 1 hour (3,600s), the protection period is counted from zero.
suspend_num	No	Integer	Threshold of the number of read waiting URL requests. When the number of read waiting URL requests reaches the threshold, connection protection is triggered.
sus_block_time	No	Integer	Breakdown protection duration when the number of read waiting URL requests exceeds the threshold. When the number of read waiting URL requests reaches the protection time triggered by the threshold, WAF stops forwarding user requests.

**Table 11** TimeoutConfig
Parameter	Mandatory	Type	Description
connect_timeout	No	Integer	Timeout for WAF to connect to the origin server.
send_timeout	No	Integer	Timeout for WAF to send requests to the origin server.
read_timeout	No	Integer	Timeout for WAF to receive responses from the origin server.

Response Parameters

Status code: 200

**Table 12** Response body parameters
Parameter	Type	Description
id	String	Domain name ID.
hostname	String	Domain name added to cloud WAF.
policyid	String	ID of the protection policy used for the domain name.
domainid	String	Account ID. You can obtain it from My Credentials > Account ID page on the Huawei Cloud management console.
projectid	String	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.
enterprise_project_id	String	Enterprise project ID. To obtain it, log in to the Huawei Cloud management console, click the username, choose Enterprise > Project Management, click the project name, and locate the project ID.
protocol	String	Backend protocol type. The value can be HTTPS, HTTP, or HTTP&HTTPS.
server	Array of CloudWafServer objects	Origin server configuration of the protected domain name
proxy	Boolean	Whether the protected domain name uses a proxy. false: No proxies are used. true: At least one proxy is used.
protect_status	Integer	Definition Domain name protection status. Constraints N/A Range -1: WAF protection is bypassed. Requests are directly sent to backend servers without passing through WAF. 0: WAF protection is suspended. WAF only forwards requests for the domain name but does not detect attacks. 1: WAF protection is enabled. WAF detects attacks based on the configured policy. Default Value N/A
access_status	Integer	Definition Domain name access status. Constraints N/A Range 0: Inaccessible 1: Accessible Default Value N/A
access_code	String	CNAME prefix.
locked	Integer	This parameter is reserved for freezing and unlocking domain names. Currently, this parameter is not supported.
timestamp	Long	Timestamp when the protected domain name was created (Unit: ms)
certificateid	String	HTTPS certificate ID.
certificatename	String	Certificate name.
tls	String	Minimum TLS version (TLS v1.0, TLS v1.1, or TLS v1.2). The default value is TLS v1.0. Requests that do not meet the minimum TLS version cannot access the website.
cipher	String	Cipher suite. Options: cipher_1, cipher_2, cipher_3, cipher_4, cipher_default. cipher_1: The cryptographic algorithm is ECDHE-ECDSA-AES256-GCM-SHA384:HIGH:!MEDIUM:!LOW:!aNULL:!eNULL:!DES:!MD5:!PSK:!RC4:!kRSA:!SRP:!3DES:!DSS:!EXP:!CAMELLIA:@STRENGTH cipher_2: The cryptographic algorithm is EECDH+AESGCM:EDH+AESGCM cipher_3: The cryptographic algorithm is ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!DH:!EDH cipher_4: The cryptographic algorithm is ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:AES256-SHA256:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!EDH cipher_5: The cryptographic algorithm is AES128-SHA:AES256-SHA:AES128-SHA256:AES256-SHA256:HIGH:!MEDIUM:!LOW:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4:!DHE:@STRENGTH cipher_6: The cryptographic algorithm is ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256 cipher_default: The cryptographic algorithm is ECDHE-RSA-AES256-SHA384:AES256-SHA256:RC4:HIGH:!MD5:!aNULL:!eNULL:!NULL:!DH:!EDH:!AESGCM
block_page	BlockPage object	Alarm page configuration
extend	Map<String,String>	Extended field, which is used to store some configuration information of the protected domain name.
web_tag	String	Website name, which is the same as the website name in the domain name details on the WAF console.
traffic_mark	TrafficMark object	Traffic identifier
circuit_breaker	CircuitBreaker object	Circuit breaker configuration
lb_algorithm	String	Definition Load balancing (available only for professional and enterprise editions). Constraints N/A Range ip_hash: Requests from the same IP address are routed to the same backend server. round_robin: weighted round robin load balancing. Requests are distributed across backend servers in turn based on the weight you assign to each server. session hash: Requests with the same session tag are routed to the same origin server. To enable this algorithm, configure traffic identifiers for known attack sources, or session hash algorithm cannot take effect. Default Value N/A
timeout_config	TimeoutConfig object	Timeout settings
flag	Flag object	Special identifier, which is used on the console.
description	String	Website remarks.
http2_enable	Boolean	Whether HTTP/2 is supported. true: HTTP/2 is supported. false: HTTP/2 is not supported.
exclusive_ip	Boolean	Whether a dedicated IP address is used. true: A dedicated IP address is used. false: No dedicated IP addresses are used.
access_progress	Array of Access_progress objects	Access progress. This parameter is used only by the new console (frontend).
forward_header_map	Map<String,String>	Field forwarding configuration. WAF inserts the added fields into the header and forwards the header to the origin server. The key cannot be the same as the native Nginx field. The options of Value are as follows: $time_local $request_id $connection_requests $tenant_id $project_id $remote_addr $remote_port $scheme $request_method $http_host $request_length $ssl_server_name $ssl_protocol $ssl_curves $ssl_session_reused -$origin_uri

**Table 13** CloudWafServer
Parameter	Type	Description
front_protocol	String	Definition Protocol used by the client to access the origin server of the protected domain name. Constraints N/A Range HTTP: HTTP protocol HTTPS: HTTPS protocol Default Value N/A
back_protocol	String	Definition Protocol used by WAF to forward client requests to the origin server of the protected domain name. Constraints N/A Range HTTP: HTTP protocol HTTPS: HTTPS protocol Default Value N/A
weight	Integer	Weight of the origin server. The load balancing algorithm allocates requests to the origin server based on the weight. The default value is 1. This parameter is not required for cloud mode.
address	String	IP address of origin server accessed by the client.
port	Integer	Port used by WAF to forward client requests to the origin server.
type	String	Type of the origin server address: IPv4 or IPv6.

**Table 14** BlockPage
Parameter	Type	Description
template	String	Template name. default: the default page. custom: the custom alarm page. redirect: redirection.
custom_page	CustomPage object	Custom alarm page.
redirect_url	String	URL of the redirection page.

**Table 15** CustomPage
Parameter	Type	Description
status_code	String	Response status code.
content_type	String	Definition Content type of the custom alarm page. Constraints N/A Range text/html text/xml application/json Default Value N/A
content	String	Configure the page content based on the selected page type. For details, see the Web Application Firewall User Guide.

**Table 16** TrafficMark
Parameter	Type	Description
sip	Array of strings	IP tag: The HTTP request header field of the original client IP address.
cookie	String	Session tag, which is used for the cookie-based known attack rules. This tag must be configured for cookie-based known attack rules.
params	String	User tag. This tag is used to block possibly malicious requests based on the Params attribute of an attack source. This tag must be configured for Params-based known attack rules.

**Table 17** CircuitBreaker
Parameter	Type	Description
switch	Boolean	Breakdown protection switch that controls whether to enable connection protection. true: Connection protection is enabled. false: Connection protection is disabled.
dead_num	Integer	502/504 error quantity threshold. The threshold is based on the total 502/504 errors occurred every 30s.
dead_ratio	Number	Percentage of 502/504 errors (%). When the percentage of 502/504 errors in the total number of requests reaches the specified value and the time threshold, breakdown protection is triggered.
block_time	Integer	Protection period upon the first breakdown. During this period, WAF stops forwarding client requests.
superposition_num	Integer	The maximum multiplier you can use for consecutive breakdowns. The number of breakdowns is counted from 0 every time the accumulated breakdown protection duration reaches 3,600s. For example, the initial protection time is set to 180s, and the continuous trigger addition coefficient is set to 3. If the number of triggering times is 2 (that is, less than 3), the protection period is 360s. If the number of triggering times is 3 or the above, the protection period is 540s. If the duration of all protection periods exceeds 1 hour (3,600s), the protection period is counted from zero.
suspend_num	Integer	Threshold of the number of read waiting URL requests. When the number of read waiting URL requests reaches the threshold, connection protection is triggered.
sus_block_time	Integer	Breakdown protection duration when the number of read waiting URL requests exceeds the threshold. When the number of read waiting URL requests reaches the protection time triggered by the threshold, WAF stops forwarding user requests.

**Table 18** TimeoutConfig
Parameter	Type	Description
connect_timeout	Integer	Timeout for WAF to connect to the origin server.
send_timeout	Integer	Timeout for WAF to send requests to the origin server.
read_timeout	Integer	Timeout for WAF to receive responses from the origin server.

**Table 19** Flag
Parameter	Type	Description
pci_3ds	String	Whether to enable PCI 3DS compliance check. true: enabled false: disabled
pci_dss	String	Whether to enable PCI DSS compliance check. true: enabled false: disabled
cname	String	old: The old CNAME record is used. new: The new CNAME record is used.
is_dual_az	String	Whether IPv6 is enabled for the domain name. true: enabled false: disabled
ipv6	String	Whether IPv6 is enabled for the domain name. true: enabled false: disabled

**Table 20** Access_progress
Parameter	Type	Description
step	Integer	Step. 1: Whitelist the WAF IP addresses. 2: Test connectivity. 3: Modify DNS resolution.
status	Integer	Definition Completion status of the corresponding step. Constraints N/A Range 0: The step is not finished. 1: The step is finished. Default Value N/A

Status code: 400

**Table 21** 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 22** 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 23** 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 24** 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 25** 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 26** 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 two origin servers under the domain name whose project ID is project_id and domain name ID is instance_id. The IP address of the first origin server is x.x.x.x, the port number is 80, the origin server address is an IPv4 address, and the origin server weight is 1. The client protocol (used by the client to access the origin server of the protected domain name) and the server protocol (used by WAF to forward the client request to the origin server of the protected domain name) are both HTTP. The IP address of the second origin server is x.x.x.x, the port number is 80, and the origin server address is an IPv4 address. The client protocol and the server are both HTTP. IPv6 protection is disabled for the domain name.

PATCH https://{Endpoint}/v1/{project_id}/waf/instance/{instance_id}?enterprise_project_id=0

{
  "server" : [ {
    "address" : "x.x.x.x",
    "port" : "80",
    "type" : "ipv4",
    "weight" : 1,
    "front_protocol" : "HTTP",
    "back_protocol" : "HTTP"
  }, {
    "front_protocol" : "HTTP",
    "back_protocol" : "HTTP",
    "type" : "ipv4",
    "address" : "x.x.x.x",
    "port" : "80"
  } ],
  "ipv6_enable" : false
}

Example Responses

Status code: 200

{
  "id" : "e91ad96e379b4bea84f8fcda3d153370",
  "hostname" : "www.demo.com",
  "protocol" : "HTTP",
  "server" : [ {
    "address" : "x.x.x.x",
    "port" : 80,
    "type" : "ipv4",
    "weight" : 1,
    "front_protocol" : "HTTP",
    "back_protocol" : "HTTP"
  }, {
    "address" : "1.1.1.4",
    "port" : 80,
    "type" : "ipv4",
    "weight" : 1,
    "front_protocol" : "HTTP",
    "back_protocol" : "HTTP"
  } ],
  "proxy" : false,
  "locked" : 0,
  "timestamp" : 1650423573577,
  "flag" : {
    "pci_3ds" : "false",
    "pci_dss" : "false",
    "ipv6" : "false",
    "cname" : "new",
    "is_dual_az" : "true"
  },
  "description" : "",
  "policyid" : "f385eceedf7c4c34a4d1def19eafbe85",
  "domainid" : "d4ecb00b031941ce9171b7bc3386883f",
  "projectid" : "0456cf04d6f64725ab02ed5bd2efdfa4",
  "enterprise_project_id" : "0",
  "protect_status" : 1,
  "access_status" : 0,
  "access_code" : "4f5372610cdc44f7970759fcca138c81",
  "block_page" : {
    "template" : "default"
  },
  "web_tag" : "we",
  "exclusive_ip" : false,
  "http2_enable" : false
}

SDK Sample Code

The SDK sample code is as follows.

     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.*;

import java.util.List;
import java.util.ArrayList;

public class UpdateHostSolution {

    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();
        UpdateHostRequest request = new UpdateHostRequest();
        request.withInstanceId("{instance_id}");
        UpdateHostRequestBody body = new UpdateHostRequestBody();
        List<CloudWafServer> listbodyServer = new ArrayList<>();
        listbodyServer.add(
            new CloudWafServer()
                .withFrontProtocol(CloudWafServer.FrontProtocolEnum.fromValue("HTTP"))
                .withBackProtocol(CloudWafServer.BackProtocolEnum.fromValue("HTTP"))
                .withWeight(1)
                .withAddress("x.x.x.x")
                .withPort(80)
                .withType(CloudWafServer.TypeEnum.fromValue("ipv4"))
        );
        listbodyServer.add(
            new CloudWafServer()
                .withFrontProtocol(CloudWafServer.FrontProtocolEnum.fromValue("HTTP"))
                .withBackProtocol(CloudWafServer.BackProtocolEnum.fromValue("HTTP"))
                .withAddress("x.x.x.x")
                .withPort(80)
                .withType(CloudWafServer.TypeEnum.fromValue("ipv4"))
        );
        body.withIpv6Enable(false);
        body.withServer(listbodyServer);
        request.withBody(body);
        try {
            UpdateHostResponse response = client.updateHost(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());
        }
    }
}
 
 
  

     # 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 = UpdateHostRequest()
        request.instance_id = "{instance_id}"
        listServerbody = [
            CloudWafServer(
                front_protocol="HTTP",
                back_protocol="HTTP",
                weight=1,
                address="x.x.x.x",
                port=80,
                type="ipv4"
            ),
            CloudWafServer(
                front_protocol="HTTP",
                back_protocol="HTTP",
                address="x.x.x.x",
                port=80,
                type="ipv4"
            )
        ]
        request.body = UpdateHostRequestBody(
            ipv6_enable=False,
            server=listServerbody
        )
        response = client.update_host(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
 
 
  

     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.UpdateHostRequest{}
	request.InstanceId = "{instance_id}"
	weightServer:= int32(1)
	var listServerbody = []model.CloudWafServer{
        {
            FrontProtocol: model.GetCloudWafServerFrontProtocolEnum().HTTP,
            BackProtocol: model.GetCloudWafServerBackProtocolEnum().HTTP,
            Weight: &weightServer,
            Address: "x.x.x.x",
            Port: int32(80),
            Type: model.GetCloudWafServerTypeEnum().IPV4,
        },
        {
            FrontProtocol: model.GetCloudWafServerFrontProtocolEnum().HTTP,
            BackProtocol: model.GetCloudWafServerBackProtocolEnum().HTTP,
            Address: "x.x.x.x",
            Port: int32(80),
            Type: model.GetCloudWafServerTypeEnum().IPV4,
        },
    }
	ipv6EnableUpdateHostRequestBody:= false
	request.Body = &model.UpdateHostRequestBody{
		Ipv6Enable: &ipv6EnableUpdateHostRequestBody,
		Server: &listServerbody,
	}
	response, err := client.UpdateHost(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	OK
400	Request failed.
401	The token does not have required permissions.
500	Internal server error.

Error Codes

See Error Codes.

Parent Topic: Managing Websites Protected in Cloud Mode

Previous topic: Querying Details About a Domain Name by Domain Name ID in Cloud Mode

Next topic: Deleting a Domain Name from the Cloud WAF

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