When you’re building a web application, there’s an immediate decision to make about how to handle Users and Authentication. There are lots of services (Auth0, Clerk) and libraries (Passport.js) to choose from, and the right choice will depend on the requirements of the application that you’re building.

There are ways to integrate cross-channel notifications via individual APIs, but we’re here to provide you with a quick guide to send across your preferred channels in one single API call. This guide will focus on sending and automating messages via Slack, MS Teams, and any other channel of your choice from your Node.js applications. You can also automate Slack and Microsoft Teams notifications using Python. This blog is a comprehensive setup guide.

Follow along with the video tutorial: We are launching our first hackathon next week, and giving away over $1K in prizes! Join us in building a cool project and winning any of the following prizes 🏆 Additionally, everyone who submits a project successfully integrating the Courier API will receive a $20 Amazon gift card! Not sure where to start? In this tutorial, we will be building a Node.js app that sends multi-channel notifications in morse code.

As a JavaScript developer, one might know that Node.js is built on top of Chrome’s V8 Engine, giving us a way to run a JS program extremely fast by compiling it to machine code directly. This in a way gives V8 the role of an Operating System, running on top of your OS, similar to how you might imagine a Virtual Machine running.