查询规则条件
功能介绍
应用服务器可调用此接口查询物联网平台中指定规则条件的配置信息。
调用方法
请参见如何调用API。
URI
GET /v5/iot/{project_id}/routing-rule/rules/{rule_id}
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
project_id |
是 |
String |
参数说明:项目ID。获取方法请参见 获取项目ID 。 |
rule_id |
是 |
String |
参数说明:规则条件ID。 取值范围:长度不超过36,只允许字母、数字、下划线(_)、连接符(-)的组合。 |
请求参数
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
X-Auth-Token |
否 |
String |
参数说明:用户Token。通过调用IAM服务 获取IAM用户Token接口获取,接口返回的响应消息头中“X-Subject-Token”就是需要获取的用户Token。简要的获取方法样例请参见 Token认证。 |
Instance-Id |
否 |
String |
参数说明:实例ID。物理多租下各实例的唯一标识,一般华为云租户无需携带该参数,仅在物理多租场景下从管理面访问API时需要携带该参数。您可以在IoTDA管理控制台界面,选择左侧导航栏“总览”页签查看当前实例的ID。 |
响应参数
状态码: 200
参数 |
参数类型 |
描述 |
---|---|---|
rule_id |
String |
规则触发条件ID,用于唯一标识一个规则触发条件,在创建规则条件时由物联网平台分配获得。 |
rule_name |
String |
用户自定义的规则名称。 最小长度:1 最大长度:256 |
description |
String |
用户自定义的规则描述。 最小长度:1 最大长度:256 |
subject |
RoutingRuleSubject object |
资源事件信息,即资源变化事件。 |
app_type |
String |
租户规则的生效范围,取值如下:
|
app_id |
String |
资源空间ID |
select |
String |
用户自定义sql select语句,最大长度2500,该参数仅供标准版和企业版用户使用。 最小长度:0 最大长度:2500 |
where |
String |
用户自定义sql where语句,最大长度2500,该参数仅供标准版和企业版用户使用。 最小长度:0 最大长度:2500 |
active |
Boolean |
规则条件的状态是否为激活。 |
参数 |
参数类型 |
描述 |
---|---|---|
resource |
String |
参数说明:资源名称。 取值范围:
最小长度:1 最大长度:50 |
event |
String |
参数说明:资源事件。 取值范围:与资源有关,不同的资源,事件不同。event需要与resource关联使用,具体的“resource:event”映射关系如下:
最小长度:1 最大长度:50 |
请求示例
查询指定规则详情。
GET https://{endpoint}/v5/iot/{project_id}/routing-rule/rules/{rule_id}
响应示例
状态码: 200
OK
{ "rule_id" : "5bcaddda-75bf-4623-8c8d-26175c41fcca", "rule_name" : "rulename", "description" : "description", "subject" : { "resource" : "device", "event" : "create" }, "app_type" : "GLOBAL", "app_id" : "1a7ffc5cd89c44dd8265b1653d951ce0", "select" : "*", "where" : "product_id='d89c-44dd-8265-b1653d951ce0'", "active" : false }
SDK代码示例
SDK代码示例如下。
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package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.AbstractCredentials; 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.core.region.Region; import com.huaweicloud.sdk.iotda.v5.*; import com.huaweicloud.sdk.iotda.v5.model.*; public class ShowRoutingRuleSolution { 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"); // ENDPOINT:请在控制台的"总览"界面的"平台接入地址"中查看“应用侧”的https接入地址。 String iotdaEndpoint = "<YOUR ENDPOINT>"; ICredential auth = new BasicCredentials() // 标准版/企业版需要使用衍生算法,基础版请删除配置"withDerivedPredicate"; .withDerivedPredicate(AbstractCredentials.DEFAULT_DERIVED_PREDICATE) // Used in derivative ak/sk authentication scenarios .withAk(ak) .withSk(sk); IoTDAClient client = IoTDAClient.newBuilder() .withCredential(auth) // 标准版/企业版:需自行创建Region对象,基础版:请使用IoTDARegion的region对象,如"withRegion(IoTDARegion.CN_NORTH_4)" .withRegion(new Region("cn-north-4", iotdaEndpoint)) .build(); ShowRoutingRuleRequest request = new ShowRoutingRuleRequest(); try { ShowRoutingRuleResponse response = client.showRoutingRule(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()); } } } |
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# coding: utf-8 import os from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkcore.auth.credentials import DerivedCredentials from huaweicloudsdkcore.region.region import Region as coreRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkiotda.v5 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"] // ENDPOINT:请在控制台的"总览"界面的"平台接入地址"中查看“应用侧”的https接入地址。 iotdaEndpoint = "<YOUR ENDPOINT>"; credentials = BasicCredentials(ak, sk).with_derived_predicate(DerivedCredentials.get_default_derived_predicate()) client = IoTDAClient.new_builder() \ .with_credentials(credentials) \ # 标准版/企业版:需要使用自行创建的Region对象,基础版:请选择IoTDAClient中的Region对象 如: .with_region(IoTDARegion.CN_NORTH_4) .with_region(coreRegion(id="cn-north-4", endpoint=endpoint)) \ .build() try: request = ShowRoutingRuleRequest() response = client.show_routing_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) |
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package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" iotda "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/iotda/v5" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/iotda/v5/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/region" core_auth "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth" ) 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") // endpoint:请在控制台的"总览"界面的"平台接入地址"中查看"应用侧"的https接入地址 endpoint := "<YOUR ENDPOINT>" auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). // 企业版/标准版需要使用衍生算法,基础版请删除该配置"WithDerivedPredicate" WithDerivedPredicate(core_auth.GetDefaultDerivedPredicate()). // Used in derivative ak/sk authentication scenarios Build() client := iotda.NewIoTDAClient( iotda.IoTDAClientBuilder(). // 标准版/企业版需要自行创建region,基础版使用IoTDARegion中的region对象 WithRegion(region.NewRegion("cn-north-4", endpoint)). WithCredential(auth). Build()) request := &model.ShowRoutingRuleRequest{} response, err := client.ShowRoutingRule(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
更多编程语言的SDK代码示例,请参见API Explorer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 |
400 |
Bad Request |
401 |
Unauthorized |
403 |
Forbidden |
404 |
Not Found |
500 |
Internal Server Error |
错误码
请参见错误码。