设备使用 HTTPS 协议接入 IoT 物联网平台——设备接入类

作者：阿里云AIoT

2023-03-14
浙江
本文字数：2086 字
阅读完需：约 7 分钟

设备基于 HTTPS 协议接入 IoT 平台

设备基于 HTTPS 协议接入 IoT 平台仅华东 2 支持官网文档 https://help.aliyun.com/document_detail/58034.html

1.设备身份认证:通过三元组获取 token

HTTPS 服务器地址为 https://iot-as-http.cn-shanghai.aliyuncs.com/>

image.png

认证请求示例：

POST /auth HTTP/1.1Host: iot-as-http.cn-shanghai.aliyuncs.comContent-Type: application/jsonbody: {    "version": "default",    "clientId": "mylight1000002",    "signmethod": "hmacsha1",    "sign": "4870141D4067227128CBB4377906C3731CAC221C",    "productKey": "ZG1EvTEa7NN",    "deviceName": "NlwaSPXsCpTQuh8FxBGH",    "timestamp": "1501668289957"}

复制代码

返回示例：

{  "code": 0,//业务状态码  "message": "success",//业务信息  "info": {    "token":  "6944e5bfb92e4d4ea3918d1eda3942f6"  }}

复制代码

2.设备数据上报

HTTPS 服务器地址为 https://iot-as-http.cn-shanghai.aliyuncs.com/topic/${topic}

image.png

请求示例：

POST /topic/a1GFjLP3xxC/device123/pubHost: iot-as-http.cn-shanghai.aliyuncs.compassword:${token}Content-Type: application/octet-streambody: ${your_data}

复制代码

返回示例

{  "code": 0,//业务状态码  "message": "success",//业务信息  "info": {    "messageId": 892687627916247040  }}

复制代码

3.实战案例 Nodejs 版

3.1 创建高级版产品

image.png

3.2 功能定义

添加产品属性定义

image.png

3.3 设备管理>注册设备，获得身份三元组

image.png

3.4 设备模拟代码

var rp = require('request-promise');const crypto = require('crypto');
const deviceConfig = {    productKey: "替换productKey",    deviceName: "替换deviceName",    deviceSecret: "替换deviceSecret"}
const topic = `/sys/${deviceConfig.productKey}/${deviceConfig.deviceName}/thing/event/property/post`;
//1.获取身份tokenrp(getAuthOptions(deviceConfig))    .then(function(parsedBody) {        console.log('Auth Info :'+JSON.stringify(parsedBody))        //2.发布物模型数据        pubData(topic, parsedBody.info.token, getPostData())    })    .catch(function(err) {        console.log('Auth err :'+JSON.stringify(err))    });
//生成Auth认证的参数function getAuthOptions(deviceConfig) {
    const params = {        productKey: deviceConfig.productKey,        deviceName: deviceConfig.deviceName,        timestamp: Date.now(),        clientId: Math.random().toString(36).substr(2),    }
    //1.生成clientId，username，password    var password = signHmacSha1(params, deviceConfig.deviceSecret);
    var options = {        method: 'POST',        uri: 'https://iot-as-http.cn-shanghai.aliyuncs.com/auth',        body: {            "version": "default",            "clientId": params.clientId,            "signmethod": "hmacsha1",            "sign": password,            "productKey": deviceConfig.productKey,            "deviceName": deviceConfig.deviceName,            "timestamp": params.timestamp        },        json: true    };
    return options;}
//publish Data to IoTfunction pubData(topic, token, data) {
    const options = {        method: 'POST',        uri: 'https://iot-as-http.cn-shanghai.aliyuncs.com/topic' + topic,        body: data,        headers: {            password: token,            'Content-Type': 'application/octet-stream'        }    }
    rp(options)        .then(function(parsedBody) {            console.log('publish success :' + parsedBody)        })        .catch(function(err) {            console.log('publish err ' + JSON.stringify(err))        });
}//模拟物模型数据function getPostData() {    var payloadJson = {        id: Date.now(),        params: {            humidity: Math.floor((Math.random() * 20) + 60),            temperature: Math.floor((Math.random() * 20) + 10)        },        method: "thing.event.property.post"    }
    console.log("===postData\n topic=" + topic)    console.log(payloadJson)
    return JSON.stringify(payloadJson);}//HmacSha1 signfunction signHmacSha1(params, deviceSecret) {
    let keys = Object.keys(params).sort();    // 按字典序排序    keys = keys.sort();    const list = [];    keys.map((key) => {        list.push(`${key}${params[key]}`);    });    const contentStr = list.join('');    return crypto.createHmac('sha1', deviceSecret).update(contentStr).digest('hex');}