无法通过本机连接到AWS IoT设备 [英] can not connect to aws iot device with react native

问题描述

我正在使用本机构建物联网应用程序.使用了这个包

 从'react'导入React，{Component};导入{平台，StyleSheet，文本，看法，TextInput，TouchableOpacity，状态栏，}来自"react-native"；从'aws-iot-device-sdk'导入AwsIot导出默认类App扩展Component {构造函数(道具){超级(道具)this.connectToIoT()}connectToIoT(){var device = AwsIot.device({keyPath:'1d8bea736f-private.pem.key'，certPath:"1d8bea736f-certificate.pem.crt"，caPath:"AmazonRootCA1.pem"，clientId:"IoTcloud"，主机:"a3ckca0x6pesml.iot.ap-northeast-2.amazonaws.com"});console.log(设备)设备.on('connect'，function(){console.log('connect');});设备.on('message'，function(topic，payload){console.log('message'，topic，payload.toString());});}}  

在打开应用程序时，我将此功能称为connectToIoT.keyPath，certPath，caPath文件存储在项目的根目录中

如何消除此错误并将我的设备连接到aws-iot?

已从堆栈>如何实施AWS IoT(设备)在React-Native中?

但仍然停留在此错误

解决方案

 从'aws-sdk/dist/aws-sdk-react-native'导入AWS从'aws-iot-device-sdk'导入AwsIotAWS_REGION ='us-east-1'//必要时进行更改.AWS_COGNITO_IDENTITY_POOL ='us-east-1:XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX'//填写.AWS_IOT_ENDPOINT ='XXXXXXXXXXXXX.iot.us-east-1.amazonaws.com'//填写.Aws.config.region = AWS_REGIONAws.config.credentials =新的Aws.CognitoIdentityCredentials({IdentityPoolId:AWS_COGNITO_IDENTITY_POOL})Aws.config.credentials.get(()=> {const config = {}让客户config.host = AWS_IOT_ENDPOINTconfig.protocol ='wss'config.clientId =`client-$ {Math.floor((Math.random()* 100000)+ 1)}`config.accessKeyId = Aws.config.credentials.accessKeyIdconfig.secretKey = Aws.config.credentials.secretAccessKeyconfig.sessionToken = Aws.config.credentials.sessionToken客户端= AwsIot.device(config)client.on('connect'，()=> {client.subscribe('some_topic')})client.on('message'，(topic，message)=> {console.log(主题，消息)})client.on('error'，error => {console.log(错误)})}) 

请勿使用您尝试连接物联网设备的证书，请使用基于WebSocket协议的MQTT"或 https://github.com/aws/aws-iot-device-sdk-js/issues/86#issuecomment-371159865

i am building IoT app with react native. used this package

https://github.com/aws/aws-iot-device-sdk-js

but got error while running app

import React, {Component} from 'react';
import {Platform, 
  StyleSheet, 
  Text, 
  View,
  TextInput,
  TouchableOpacity,
  StatusBar,
} from 'react-native';
import AwsIot from 'aws-iot-device-sdk'
export default class App extends Component {
  constructor(props){
    super(props)
    this.connectToIoT()
  }
  connectToIoT(){
    var device = AwsIot.device({
       keyPath:'1d8bea736f-private.pem.key',
       certPath: '1d8bea736f-certificate.pem.crt',
       caPath:   'AmazonRootCA1.pem',
       clientId: 'IoTcloud',
       host: 'a3ckca0x6pesml.iot.ap-northeast-2.amazonaws.com'
   });
   console.log(device)
   device
    .on('connect', function() {
      console.log('connect');
    });
    device
    .on('message', function(topic, payload) {
      console.log('message', topic, payload.toString());
    });
    }
}

here i called this function connectToIoT when app is opened.. keyPath,certPath,caPath files are stored in root of the project

how to get rid of this error and connect my device to aws-iot???

already followed this solution from stack How to implement AWS IoT(device) in React-Native?

but still stuck at this error

解决方案

import Aws from 'aws-sdk/dist/aws-sdk-react-native'
import AwsIot from 'aws-iot-device-sdk'

AWS_REGION = 'us-east-1' // Change if needed.
AWS_COGNITO_IDENTITY_POOL = 'us-east-1:XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX' 
// Fill in.
AWS_IOT_ENDPOINT = 'XXXXXXXXXXXXX.iot.us-east-1.amazonaws.com' // Fill in.

Aws.config.region = AWS_REGION
Aws.config.credentials = new Aws.CognitoIdentityCredentials({
IdentityPoolId: AWS_COGNITO_IDENTITY_POOL
})

Aws.config.credentials.get(() => {
const config = {}
let client

config.host = AWS_IOT_ENDPOINT
config.protocol = 'wss'
config.clientId = `client-${Math.floor((Math.random() * 100000) + 1)}`
config.accessKeyId = Aws.config.credentials.accessKeyId
config.secretKey = Aws.config.credentials.secretAccessKey
config.sessionToken = Aws.config.credentials.sessionToken

client = AwsIot.device(config)

client.on('connect', () => {
    client.subscribe('some_topic')
})

client.on('message', (topic, message) => {
    console.log(topic, message)
})

client.on('error', error => {
    console.log(error)
})
})

don't use the certificate that you are trying for connecting the Iot Device, use 'MQTT over the WebSocket Protocol' or https://github.com/aws/aws-iot-device-sdk-js/issues/86#issuecomment-371159865

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