Practical Internet of Things with JavaScript

Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning. Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Now, inside the broker folder, create another folder named certs and cd into that folder." A block of code is set as follows:

// MongoDB connection options    mongo: {        uri: 'mongodb://admin:[e-mail]:41055/iotfwjs'    },    mqtt: {        host: process.env.EMQTT_HOST || '127.0.0.1',        clientId: 'API_Server_Dev',        port: 8883    }};

Any command-line input or output is written as follows:

openssl ...