Book Image

Practical Node-RED Programming

By : Taiji Hagino
5 (1)
Book Image

Practical Node-RED Programming

5 (1)
By: Taiji Hagino

Overview of this book

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.
Table of Contents (19 chapters)
Section 1: Node-RED Basics
Section 2: Mastering Node-RED
Section 3: Practical Matters

Installing Node-RED for Mac

In this section, we will explain how to set up Node-RED in a macOS environment. This procedure is for macOS Mojave. It will likely work for all versions of Mac OS X, but I strongly recommend that you use the current version of macOS.

For macOS, installing Node-RED as a global module adds the node-red command to your system path. Run the following command in the Terminal. You may need to add sudo at the front of the command, depending on your local settings:

$ sudo npm install -g --unsafe-perm node-red

You can also install Node-RED with other tools. This is mainly for Mac/Linux or the kinds of OS that support the following tools:

  1. Docker (, if you have the environment for running Docker.

    The current Node-RED 1.x repository on Docker Hub has been renamed "nodered/node-red".

    Versions up to 0.20.x are available from

    Important note

    When running Node-RED with Docker...