更新时间:2024-06-14 GMT+08:00
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创建设备隧道

功能介绍

用户可以通过该接口创建隧道(WebSocket协议),应用服务器和设备可以通过该隧道进行数据传输。

  • 该API接口在基础版不支持。

  • 该API调用后平台会向对应的MQTT/MQTTS设备下发隧道地址及密钥,同时给应用服务器也返回隧道地址及密钥,设备可以通过该地址及密钥创建WebSocket协议连接。

  • 一个设备无法创建多个隧道。

  • 具体应用可见“设备远程登录”功能,请参见设备远程登录

调用方法

请参见如何调用API

URI

POST /v5/iot/{project_id}/tunnels

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

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,建议携带该参数,在使用专业版时必须携带该参数。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,具体获取方式请参考查看实例详情

表3 请求Body参数

参数

是否必选

参数类型

描述

device_id

String

参数说明:设备ID

响应参数

状态码: 201

表4 响应Body参数

参数

参数类型

描述

tunnel_id

String

隧道ID

tunnel_access_token

String

鉴权信息

expires_in

Integer

鉴权信息的过期时间, 单位:秒

最小值:0

最大值:86400000

tunnel_uri

String

websocket接入地址

最小长度:1

最大长度:2048

请求示例

创建设备隧道,设备id为b64b7a625b84c1334befb648b_test。

POST https://{endpoint}/v5/iot/{project_id}/tunnels

{
  "device_id" : "b64b7a625b84c1334befb648b_test"
}

响应示例

状态码: 201

创建设备隧道成功

{
  "tunnel_id" : "d144a524-1997-4b99-94bf-f27128da8a34",
  "tunnel_access_token" : "MIIDkgYJKoZIhvcNAQcCoIIDgzCCXXXXX",
  "expires_in" : 86400,
  "tunnel_uri" : "wss://tunnel.st1.iotda-app.cn-XXX.myhuaweicloud.com/v5/iot/tunnels/XXX/source-connect"
}

SDK代码示例

SDK代码示例如下。

创建设备隧道,设备id为b64b7a625b84c1334befb648b_test。

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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 AddTunnelSolution {

    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();
        AddTunnelRequest request = new AddTunnelRequest();
        AddTunnelDto body = new AddTunnelDto();
        body.withDeviceId("b64b7a625b84c1334befb648b_test");
        request.withBody(body);
        try {
            AddTunnelResponse response = client.addTunnel(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());
        }
    }
}

创建设备隧道,设备id为b64b7a625b84c1334befb648b_test。

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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 = AddTunnelRequest()
        request.body = AddTunnelDto(
            device_id="b64b7a625b84c1334befb648b_test"
        )
        response = client.add_tunnel(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

创建设备隧道,设备id为b64b7a625b84c1334befb648b_test。

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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.AddTunnelRequest{}
	request.Body = &model.AddTunnelDto{
		DeviceId: "b64b7a625b84c1334befb648b_test",
	}
	response, err := client.AddTunnel(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

201

创建设备隧道成功

400

输入参数不正确

401

Unauthorized

403

鉴权认证失败

500

Internal Server Error

错误码

请参见错误码

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