Book Image

Practical Node-RED Programming

By : Taiji Hagino
Book Image

Practical Node-RED Programming

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

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

In this chapter, we will create a chatbot application, using Node-RED. For the chatbot application UI, we'll use Slack, and we'll use IBM Watson AI for skills. After completing the tutorials in this chapter, you will learn how to combine Node-RED with an external API to create an application. This will help you create extensible web applications with Node-RED in the future.

Let's get started with the following topics:

  • Creating a Slack workspace
  • Creating a Watson Assistant API
  • Enabling a connection to Slack from Node-RED
  • Building a chatbot application

By the end of this chapter, you will have mastered how to make a Slack chatbot application with Node-RED.