# 查询实例关联的域名信息 - ListInstanceDomains
#### 功能介绍
查询实例关联的域名信息
#### 调用方法
请参见[如何调用API](https://support.huaweicloud.com/api-aad/aad_02_0007.html)。
#### 授权信息
账号具备所有API的调用权限，如果使用账号下的IAM用户调用当前API，该IAM用户需具备调用API所需的权限。
- 如果使用角色与策略授权，具体权限要求请参见[权限和授权项](https://support.huaweicloud.com/api-aad/abcd.html)。
- 如果使用身份策略授权，当前API调用无需身份策略权限。
 
#### URI
GET /v2/aad/instances/{instance_id}/domains
表1路径参数 
| 参数          | 是否必选 | 参数类型   | 描述   |
|:---|:---|:---|:---|
| instance_id | 是    | String | 实例id |
   
表2Query参数 
| 参数     | 是否必选 | 参数类型    | 描述   |
|:---|:---|:---|:---|
| limit  | 否    | Integer | 限制条数 |
| offset | 否    | Integer | 偏移量  |
   
#### 请求参数
表3请求Header参数 
| 参数           | 是否必选 | 参数类型   | 描述           |
|:---|:---|:---|:---|
| X-Auth-Token | 是    | String | token        |
| Content-Type | 是    | String | Content-Type |
   
#### 响应参数
**状态码：200**
表4响应Body参数 
| 参数            | 参数类型                                                                                     | 描述   |
|:---|:---|:---|
| instance_id   | String                                                                                   | 实例id |
| instance_name | String                                                                                   | 实例名称 |
| domains       | Array of [InstanceDomainItem] objects | 域名信息 |
   
 表5InstanceDomainItem 
| 参数                | 参数类型             | 描述                 |
|:---|:---|:---|
| domain_id         | String           | 域名ID               |
| domain_name       | String           | 域名                 |
| cname             | String           | 域名cname            |
| domain_status     | String           | 域名状态，0-正常,1-冻结     |
| cc_status         | Integer          | cc防护状态,1-关闭,0-开启   |
| https_cert_status | Integer          | 证书状态：1-已上传 2-未上传   |
| cert_name         | String           | 证书名称               |
| protocol_type     | Array of strings | 域名协议               |
| real_server_type  | Integer          | 源站类型，0-源站IP，1-源站域名 |
| real_servers      | String           | 源站                 |
| waf_status        | Integer          | waf防护状态，1-关闭，0-开启  |
   
#### 请求示例
查询ID为579b0ccd-xxxx-xxxx-xxxx-fa163eaa216e的实例对应的域名信息。
```
GET https://{endpoint}/v2/aad/instances/579b0ccd-xxxx-xxxx-xxxx-fa163eaa216e/domains
```
#### 响应示例
**状态码：200**
OK
```
{
  "instance_id" : "579b0ccd-xxxx-xxxx-xxxx-fa163eaa216e",
  "instance_name" : "CAD_instance",
  "domains" : [ {
    "domain_id" : "e71cd4aa-xxxx-xxxx-xxxx-e751a0b93513",
    "domain_name" : "test.com",
    "cname" : "cname.huaweisafedns.cn",
    "domain_status" : "0",
    "cc_status" : 1,
    "waf_status" : 1,
    "protocol_type" : [ "HTTP" ],
    "https_cert_status" : 2,
    "real_server_type" : 0,
    "cert_name" : "",
    "real_servers" : "1.x.x.1"
  } ]
}
```
#### SDK代码示例
SDK代码示例如下。
- [Java]
  ```
  package com.huaweicloud.sdk.test;
  import com.huaweicloud.sdk.core.auth.ICredential;
  import com.huaweicloud.sdk.core.auth.GlobalCredentials;
  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.aad.v2.region.AadRegion;
  import com.huaweicloud.sdk.aad.v2.*;
  import com.huaweicloud.sdk.aad.v2.model.*;
  public class ListInstanceDomainsSolution {
      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");
          ICredential auth = new GlobalCredentials()
                  .withAk(ak)
                  .withSk(sk);
          AadClient client = AadClient.newBuilder()
                  .withCredential(auth)
                  .withRegion(AadRegion.valueOf("<YOUR REGION>"))
                  .build();
          ListInstanceDomainsRequest request = new ListInstanceDomainsRequest();
          request.withInstanceId("{instance_id}");
          try {
              ListInstanceDomainsResponse response = client.listInstanceDomains(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());
          }
      }
  }
  ```
- [Python]
  ```
  # coding: utf-8
  import os
  from huaweicloudsdkcore.auth.credentials import GlobalCredentials
  from huaweicloudsdkaad.v2.region.aad_region import AadRegion
  from huaweicloudsdkcore.exceptions import exceptions
  from huaweicloudsdkaad.v2 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"]
      credentials = GlobalCredentials(ak, sk)
      client = AadClient.new_builder() \
          .with_credentials(credentials) \
          .with_region(AadRegion.value_of("<YOUR REGION>")) \
          .build()
      try:
          request = ListInstanceDomainsRequest()
          request.instance_id = "{instance_id}"
          response = client.list_instance_domains(request)
          print(response)
      except exceptions.ClientRequestException as e:
          print(e.status_code)
          print(e.request_id)
          print(e.error_code)
          print(e.error_msg)
  ```
- [Go]
  ```
  package main
  import (
  "fmt"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/global"
      aad "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aad/v2"
  "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aad/v2/model"
      region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/aad/v2/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")
      auth, err := global.NewCredentialsBuilder().
          WithAk(ak).
          WithSk(sk).
          SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      hcClient, err := aad.AadClientBuilder().
           WithRegion(region.ValueOf("<YOUR REGION>")).
           WithCredential(auth).
           SafeBuild()
      if err != nil {
          fmt.Println(err)
          return
      }
      client := aad.NewAadClient(hcClient)
      request := &model.ListInstanceDomainsRequest{}
  request.InstanceId = "{instance_id}"
  response, err := client.ListInstanceDomains(request)
  if err == nil {
          fmt.Printf("%+v\n", response)
      } else {
          fmt.Println(err)
      }
  }
  ```
- [更多]
  更多编程语言的SDK代码示例，请参见[API Explorer](https://console.huaweicloud.com/apiexplorer/#/openapi/AAD/sdk?api=ListInstanceDomains)的代码示例页签，可生成自动对应的SDK代码示例。
#### 状态码
| 状态码 | 描述 |
|:---|:---|
| 200 | OK |
   
#### 错误码
请参见[错误码](https://support.huaweicloud.com/api-aad/ErrorCode.html)。