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

Using the Git repository

We enabled the project feature in the previous section. Reopen the flow editor and you will be prompted to create your first project using the contents of the flow you created at that time. This will be the welcome screen:

Figure 8.1 – Welcome screen

We need to set up a version control client such as Git. As already explained, the project function of Node-RED uses Git as a version control tool. As with regular Git, you can manage file changes on a project-by-project basis and synchronize with remote repositories as required.

Git keeps track of who made the change. It works with your username and email address. The username does not have to be your real name; you can use any name you like.

If your local device already has a Git client configured, Node-RED will look up those settings.

First, perform version control in your local environment. It takes advantage of the features of the Git client installed in your local environment...