Querying an Endpoint Rule
Function
This API is used to query an endpoint rule.
Calling Method
For details, see Calling APIs.
Authorization Information
Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.
- If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.
 - If you are using identity policy-based authorization, the following identity policy-based permissions are required. 
     
Action
Access Level
Resource Type (*: required)
Condition Key
Alias
Dependencies
dns:resolverRule:get
Read
resolverRule *
-
-
-
 
URI
GET /v2.1/resolverrules/{resolverrule_id}
| 
         Parameter  | 
       
         Mandatory  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|---|
| 
         resolverrule_id  | 
       
         Yes  | 
       
         String  | 
       
         ID of an endpoint rule  | 
      
Request Parameters
| 
         Parameter  | 
       
         Mandatory  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|---|
| 
         X-Auth-Token  | 
       
         Yes  | 
       
         String  | 
       
         Definition The user token. The token can be obtained by calling an IAM API. The value of X-Subject-Token in the response header is the user token. For details about how to obtain a user token, seeObtaining a User Token. Constraints N/A Range N/A Default Value N/A  | 
      
Response Parameters
Status code: 200
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         resolver_rule  | 
       
         ShowResolverRuleRespParam object  | 
       
         Endpoint rules  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         id  | 
       
         String  | 
       
         Endpoint rule ID, which is a UUID used to identify the rule  | 
      
| 
         name  | 
       
         String  | 
       
         Rule name  | 
      
| 
         domain_name  | 
       
         String  | 
       
         Domain name  | 
      
| 
         endpoint_id  | 
       
         String  | 
       
         ID of the endpoint to which the current rule belongs  | 
      
| 
         status  | 
       
         String  | 
       
         Resource status. The value can be PENDING_CREATE, ACTIVE, PENDING_DELETE, or ERROR.  | 
      
| 
         rule_type  | 
       
         String  | 
       
         Rule type. This parameter is reserved. The default value is FORWARD.  | 
      
| 
         ipaddress_count  | 
       
         Integer  | 
       
         Number of IP addresses in the endpoint rule  | 
      
| 
         ipaddresses  | 
       
         Array of IpValue objects  | 
       
         Destination IP address added to a rule  | 
      
| 
         routers  | 
       
         Array of Router objects  | 
       
         VPC associated with the endpoint rule  | 
      
| 
         create_time  | 
       
         String  | 
       
         The creation time. Format: yyyy-MM-dd'T'HH:mm:ss.SSS  | 
      
| 
         update_time  | 
       
         String  | 
       
         The update time. Format: yyyy-MM-dd'T'HH:mm:ss.SSS  | 
      
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         router_id  | 
       
         String  | 
       
         ID of the associated VPC.  | 
      
| 
         router_region  | 
       
         String  | 
       
         Region where the associated VPC is located.  | 
      
| 
         status  | 
       
         String  | 
       
         Resource status.  | 
      
Status code: 400
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         code  | 
       
         String  | 
       
         Definition Error code Range N/A  | 
      
| 
         message  | 
       
         String  | 
       
         Definition Error description Range N/A  | 
      
Status code: 500
| 
         Parameter  | 
       
         Type  | 
       
         Description  | 
      
|---|---|---|
| 
         code  | 
       
         String  | 
       
         Definition Error code Range N/A  | 
      
| 
         message  | 
       
         String  | 
       
         Definition Error description Range N/A  | 
      
Example Requests
None
Example Responses
Status code: 200
Successful request
{
  "resolver_rule" : {
    "id" : "8a36f60a753badb401753bade3400002",
    "name" : "rule-xxx",
    "domain_name" : "www.example.com",
    "endpoint_id" : "8a36f60a753badb401753bade3400001",
    "status" : "ACTIVE",
    "rule_type" : "FORWARD",
    "ipaddress_count" : 0,
    "ipaddresses" : [ {
      "ip" : "1.1.1.1"
    }, {
      "ip" : "2.2.2.2"
    } ],
    "routers" : [ {
      "router_id" : "ff7bd47f-3f12-4f24-a078-e6064abaa670",
      "router_region" : "NetworkService",
      "status" : "ACTIVE"
    }, {
      "router_id" : "ff7bd47f-3f12-4f24-a078-e6064abaa671",
      "router_region" : "NetworkService",
      "status" : "ACTIVE"
    } ],
    "create_time" : "2020-10-18T12:27:31.448",
    "update_time" : "2020-10-18T12:27:31.448"
  }
}
  SDK Sample Code
The SDK sample code is as follows.
          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  | 
         
          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.dns.v2.region.DnsRegion; import com.huaweicloud.sdk.dns.v2.*; import com.huaweicloud.sdk.dns.v2.model.*; public class ShowResolverRuleSolution { 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 BasicCredentials() .withAk(ak) .withSk(sk); DnsClient client = DnsClient.newBuilder() .withCredential(auth) .withRegion(DnsRegion.valueOf("<YOUR REGION>")) .build(); ShowResolverRuleRequest request = new ShowResolverRuleRequest(); request.withResolverruleId("{resolverrule_id}"); try { ShowResolverRuleResponse response = client.showResolverRule(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()); } } }  | 
        
          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  | 
         
          # coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkdns.v2.region.dns_region import DnsRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkdns.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 = BasicCredentials(ak, sk) client = DnsClient.new_builder() \ .with_credentials(credentials) \ .with_region(DnsRegion.value_of("<YOUR REGION>")) \ .build() try: request = ShowResolverRuleRequest() request.resolverrule_id = "{resolverrule_id}" response = client.show_resolver_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)  | 
        
          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  | 
         
          package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" dns "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dns/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dns/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dns/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 := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := dns.NewDnsClient( dns.DnsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.ShowResolverRuleRequest{} request.ResolverruleId = "{resolverrule_id}" response, err := client.ShowResolverRule(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  | 
       
         Successful request  | 
      
| 
         400  | 
       
         Error response  | 
      
| 
         500  | 
       
         Error response  | 
      
Error Codes
See Error Codes.
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