Practical Node-RED Programming

Learn powerful visual programming techniques and best practices for the web and IoT. Understand how Node-RED, the free and open-source flow-based programming tool, is used for handling IoT data and how it allows programmers of any level to interconnect I/O, APIs, and online services in new and exciting ways. This book is a comprehensive introduction to Node-RED and will get you up to speed with building web apps in no time.

Use a low-code programming approach to create event-driven applications from scratch by wiring together hardware devices, APIs, and online services

• Discover how you can automate the Internet of Things (IoT) without writing huge blocks of code
• Learn how to wire together flows using a browser-based visual editor
• Handle IoT data with little to no coding knowledge

Node-RED is a free and open source flow-based programming tool used to handle IoT data that allows programmers of any level to interconnect physical I/O, cloud-based systems, databases, and APIs to build web applications without code.

Practical Node-RED Programming is a comprehensive introduction for anyone looking to get up to speed with the Node-RED ecosystem in no time. Complete with hands-on tutorials, projects, and self-assessment questions, this easy-to-follow guide will help you to become well versed in the foundations of Node-RED. You’ll learn how to use Node-RED to handle IoT data and build web applications without having to write complex code. Once you’ve covered the basics, you’ll explore various visual programming techniques and find out how to make sample flows as you cover web development, IoT development, and cloud service connections, and finally build useful real-world applications.

By the end of this book, you’ll have learned how to use Node-RED to develop a real-world application from scratch, which can then be implemented in your business.

• Understand the history of Node-RED and why you need to learn a flow-based programming tool
• Use Node-RED to build Node.js-based applications
• Handle data for IoT devices using Node-RED flows
• Explore advanced Node-RED features such as connecting repositories and customizing the flow editor
• Find out what the MQTT protocol is and how it relates to Node-RED
• Create and publish your own nodes and flows using the Node-RED library

This Node-RED book is for web developers and IoT engineers with some background in JavaScript and Node.js. Although not necessary, familiarity with the concepts of electronics will help you to make the most out of this book.

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