Companies like Uber, TaskRabbit, and Instacart use ETA Notifications to keep their customers up to date on the status of their order or request. More and more services rely on SMS as the primary way of communicating with their customers for on-demand purchases.
The key to those services working? Notifying customers when things change.
In this tutorial, we'll build a notification system for Laundr.io, a fictional on-demand laundry service. You'll learn how to set up Twilio's REST client, handle notification triggers, send your SMS notification, and handle a callback from Twilio.
Find your language and framework of choice below to get to the source code in your language and follow step-by-step instructions to learn how to build ETA notifications yourself!