Node.js: Sending Email Notifications Using Nodemailer and Gmail

[Dave Johnson]

In this tutorial, I explore how to send email notifications using the Nodemailer package in Node.js, specifically leveraging Gmail for testing purposes. The process involves setting up a Node.js application that retrieves data from an API to determine when the International Space Station (ISS) will pass overhead, and then sends an email notification if it's within 30 minutes of our location. I detail the installation of necessary packages, the creation of a general-purpose email module, and the implementation of encryption for Gmail credentials to enhance security. By the end, readers will have a functional system that keeps them informed about the ISS's approach, demonstrating the practical application of Node.js in IoT scenarios.