更新时间:2024-10-23 GMT+08:00
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查询数据流转流控策略

功能介绍

应用服务器可调用此接口在物联网平台查询指定数据流转流控策略。

调用方法

请参见如何调用API

URI

GET /v5/iot/{project_id}/routing-rule/flowcontrol-policy/{policy_id}

表1 路径参数

参数

是否必选

参数类型

描述

project_id

String

参数说明:项目ID。获取方法请参见 获取项目ID

policy_id

String

参数说明:数据流转流控策略id,用于唯一标识一个数据流转流控策略,在创建数据流转流控策略时由物联网平台分配获得。

请求参数

表2 请求Header参数

参数

是否必选

参数类型

描述

X-Auth-Token

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

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

表3 响应Body参数

参数

参数类型

描述

policy_id

String

参数说明:数据流转流控策略id,用于唯一标识一个数据流转流控策略,在创建数据流转流控策略时由物联网平台分配获得。

policy_name

String

参数说明:数据流转流控策略名称。

取值范围:长度不超过256,只允许中文、字母、数字、以及_?'#().,&%@!-等字符的组合。

description

String

参数说明:用户自定义的数据流转流控策略描述。

取值范围:长度不超过256,只允许中文、字母、数字、以及_?'#().,&%@!-等字符的组合。

scope

String

参数说明:流控策略作用域.

取值范围

  • USER:租户级流控策略。

  • CHANNEL:转发通道级流控策略。

  • RULE:转发规则级流控策略。

  • ACTION:转发动作级流控策略。

scope_value

String

参数说明:流控策略作用域附加值。

scope取值为USER时,可不携带该字段,表示租户级流控。

scope取值为CHANNEL时,取值范围:HTTP_FORWARDING、DIS_FORWARDING、OBS_FORWARDING、AMQP_FORWARDING、DMS_KAFKA_FORWARDING。

scope取值为RULE时,该字段为对应的ruleId。

scope取值为ACTION时,该字段为对应的actionId。

limit

Integer

参数说明:数据转发流控大小。单位为tps,取值范围为1~1000的整数,默认为1000.

请求示例

查询指定数据流转流控策略。

GET https://{endpoint}/v5/iot/{project_id}/routing-rule/flowcontrol-policy/{policy_id}

响应示例

状态码: 200

Ok

{
  "policy_id" : "adadd5cb-6383-4b5b-a65c-f8c92fdf3c34",
  "policy_name" : "policyName",
  "description" : "description",
  "scope" : "CHANNEL",
  "scope_value" : "HTTP_FORWARDING",
  "limit" : 10
}

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 ShowRoutingFlowControlPolicySolution {

    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>";
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                // 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();
        ShowRoutingFlowControlPolicyRequest request = new ShowRoutingFlowControlPolicyRequest();
        request.withPolicyId("{policy_id}");
        try {
            ShowRoutingFlowControlPolicyResponse response = client.showRoutingFlowControlPolicy(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>";
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId).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 = ShowRoutingFlowControlPolicyRequest()
        request.policy_id = "{policy_id}"
        response = client.show_routing_flow_control_policy(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>"
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        // 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.ShowRoutingFlowControlPolicyRequest{}
	request.PolicyId = "{policy_id}"
	response, err := client.ShowRoutingFlowControlPolicy(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

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