You're reading from Practical Node-RED Programming Learn powerful visual programming techniques and best practices for the web and IoT

Product type Paperback

Published in Mar 2021

Publisher Packt

ISBN-13 9781800201590

Length 326 pages

Edition 1st Edition

Languages

JavaScript

Tools

Node-Red

Concepts

Server Side Web Development

Author (1):

Taiji Hagino

View More author details

Table of Contents (19) Chapters

Preface

1. Section 1: Node-RED Basics

2. Chapter 1: Introducing Node-RED and Flow-Based Programming FREE CHAPTER

3. Chapter 2: Setting Up the Development Environment

4. Chapter 3: Understanding Node-RED Characteristics by Creating Basic Flows

5. Chapter 4: Learning the Major Nodes

6. Section 2: Mastering Node-RED

7. Chapter 5: Implementing Node-RED Locally

8. Chapter 6: Implementing Node-RED in the Cloud

9. Chapter 7: Calling a Web API from Node-RED

10. Chapter 8: Using the Project Feature with Git

11. Section 3: Practical Matters

12. Chapter 9: Creating a ToDo Application with Node-RED

13. Chapter 10: Handling Sensor Data on the Raspberry Pi

14. Chapter 11: Visualize Data by Creating a Server-Side Application in the IBM Cloud

15. Chapter 12: Developing a Chatbot Application Using Slack and IBM Watson

16. Chapter 13: Creating and Publishing Your Own Node on the Node-RED Library

17. Other Books You May Enjoy

Appendix: Node-RED User Community

How to use the IBM Watson API

In the previous section, you learned how to call the API and handle the resulting values from the API.

In this section too, we will create a flow that actually calls the API from Node-RED, but we will learn how to call the Watson API provided by IBM. We will also create a flow that actually calls the API from Node-RED, but we will learn how to call the Watson API provided by IBM.

Why Watson? Watson is a brand of artificial intelligence services and APIs provided by IBM.

All Watson APIs can be used from IBM Cloud. So, by running Node-RED on IBM Cloud, you can effectively use Watson's services. This has advantages such as when calling the Watson API from Node-RED, implementation of authentication can be omitted.

Watson can be called from environments other than IBM Cloud, so it can be called directly from a Raspberry Pi or can be used from either cloud platforms such as AWS and Azure or on-premises environments. See the following figure...