You're reading from Arduino Data Communications Learn how to configure databases, MQTT, REST APIs, and store data over LoRaWAN, HC-12, and GSM

Product type Paperback

Published in Nov 2023

Publisher Packt

ISBN-13 9781837632619

Length 286 pages

Edition 1st Edition

Tools

Arduino

Concepts

Embedded Systems

Author (1):

Robert Thas John

View More author details

Table of Contents (20) Chapters

Preface

1. Part 1:Introduction to Arduino and Sensor Data

2. Chapter 1: Getting Started with Arduino FREE CHAPTER

3. Chapter 2: Leveraging Various Sensors for Data Acquisition

4. Chapter 3: Prototyping with Shields

5. Chapter 4: Storing Data Collected from Sensors

6. Chapter 5: Implementing REST and MQTT Protocols for Communication

7. Part 2:Sending Data

8. Chapter 6: Utilizing Various Communication Technologies

9. Chapter 7: Communicating with LoRaWAN

10. Chapter 8: Working with Ethernet

11. Chapter 9: Leveraging Cellular Communication Technology

12. Chapter 10: Communicating via HC-12

13. Chapter 11: Managing Communication with RS-485

14. Part 3: Miscellaneous Topics

15. Chapter 12: Enhancing Security for Reducing Risk

16. Chapter 13: Scaling for High Availability

17. Chapter 14: Building and Manufacturing Hardware

18. Index

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Implementing a REST API using JavaScript

So far, we have learned about creating tables, as well as inserting, updating, and deleting data using a relational database and a terminal. However, we do not have access to this terminal from our microcontrollers. To communicate with our database server from the microcontrollers, we will introduce a middleware, called an API server. There are various types of APIs but we will utilize REST.

We will implement a REST API using a server-side version of JavaScript called Node.js. From the website, it is described as an asynchronous, event-driven JavaScript runtime that lets you run JavaScript code outside of a web browser. You can learn more about it at https://nodejs.org/en. Let’s begin by installing the Node.js CLI from the Ubuntu CLI.