适用于Alexa Javascript的AWS Lambda函数中的MQTT [英] MQTT in AWS Lambda function for Alexa Javascript

问题描述

请帮助，我需要在lambda函数中使用mqtt协议将一些数据发送给代理. 我使用简单的代码对其进行测试:

Please help, I need to use mqtt protocol in lambda function to send some data to a broker. I use simple code to test it :

mqtt = require('mqtt');
var client  = mqtt.connect('mqtt://test.mosquitto.org');

client.on('connect', function () {
  client.subscribe('presence');
  client.publish('presence', 'Hello mqtt');
});

client.on('message', function (topic, message) {
  // message is Buffer 
  console.log(message.toString());
  client.end();
});

但是我收到错误消息找不到模块'mqtt'"，如何在lambda函数中包含该模块?无论如何，我如何在lambda中使用mqtt?有人吗?

But I get an error "Cannot find module 'mqtt'", how can I include this module in the lambda function??? How can I use mqtt in my lambda anyways?? Somebody???

推荐答案

首先，您将在项目目录中进行:

First you will do in the directory of your project:

npm install mqtt --save 

将这个文件夹(在文件夹，文件和子目录内)压缩后，并上传到lambda函数.

after you will zip this folder (inside the folder, the files and subdirectories) and upload to your lambda function.

每次都必须创建一个处理函数，因此您将创建一个如下所示的函数:

Every time you must create a handler function, so you will create a function like this:

exports.handler  = function (event, context, callback) {
... your code...

}

在AWS面板的lambda函数中，您将在Handler文本字段中指定文件和正在使用的函数.

in your lambda function at the AWS panel you will appoint to the file and the function you are using in Handler text field.

这篇关于适用于Alexa Javascript的AWS Lambda函数中的MQTT的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！