Engineering

Follow These Considerations For An Effective Push Notification System Design

Push notifications are generally an effective mechanism for user engagement, but it's no longer enough to simple just *have* push notifications. Given increased user scrutiny and competitiveness for attention, notification system design is more important than over. We offer some guidelines on how to design effective push notifications.

Notification Strategy for Web and Mobile Apps: Design, Channels, Best Practices

Designing effective notifications isn’t just about delivery—it’s about timing, personalization, and user experience. In this guide, we’ll walk through how to build a scalable, multi-channel notification system that keeps your users informed, engaged, and in control.

Build vs. Buy: What’s better for a transactional email notification service?

Comparing the advantages and disadvantages of building your own notification system for transactional emails vs. buying a product.

Three Ways to Send Emails Using Python With Code Tutorials

Learn how to send an email in your Python application with SMTP, with a transactional email API, and with a multi-channel notification service.

How to Send Emails in Node.js: SMTP, Email APIs, and Notification Services (With Code Tutorials)

Learn how to send transactional emails in Node.js using SMTP, email APIs like SendGrid or Mailgun, and multichannel tools like Courier. Step-by-step code examples included.

Top 6 Transactional Email Services for Developers in 2025

Looking to send transactional emails for your application? We compare the top transactional email API services for developers to help you pick the right one.

Twitch Notifications (Part Three): How to Create and Notify a List of Subscribers Using Courier

In this tutorial, Aydrian will show you how to extend the Node.js and Express app from part two to send notifications to more than one destination using Courier’s Lists API. He'll also demo sending to a Discord channel.

Twitch Notifications (Part Two): How to Send Notifications When Your Twitch Stream Goes Live

In this tutorial, Aydrian will show you how to listen for events from Twitch and then create and trigger a notification in Courier. He’ll demo sending an SMS notification with Twilio.

Twitch Notifications (Part One): How to Handle Real-Time Events from Twitch

This series will show you how to use Twitch EventSub and Courier to automatically send notifications to many destinations – Discord, Slack, Facebook Messenger, and more – when your Twitch stream goes live.