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Practical Node-RED Programming

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

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781800201590
Length 326 pages
Edition 1st Edition
Languages
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Author (1):
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Taiji Hagino Taiji Hagino
Author Profile Icon Taiji Hagino
Taiji Hagino
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Table of Contents (19) Chapters Close

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

Running the application

If everything is working, you should be able to open http://localhost:1880 in the browser and see the application.

Now, let's confirm that the ToDo application works by following these steps:

  1. Access http://localhost:1880 to open your ToDo application.

    If you get the Node-RED flow editor when you open localhost:1880, the setting httpAdminRoot is not enabled, so please check your settings.js file again.

    When you access this URL, the following screen should be displayed:

    Figure 9.21 – Open your ToDo application

  2. Any ToDo item is fine for this test, so enter any words as a sample task. Here, I typed Report my tasks:

    Figure 9.22 – Enter a sample ToDo item

  3. If you press the Enter key while entering a value in the text box, that value will be registered as a ToDo item. In the following screenshot, we can see that it looks like it has been registered in the application:

    Figure 9.23 – The ToDo item you entered has been registered...

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