A webhook is an API concept that’s growing in popularity. As more and more of what we do on the web can be described by events, webhooks are becoming even more applicable. They’re incredibly useful and a resource-light way to implement event reactions. So, what exactly is a webhook? A webhook (also called a web callback or HTTP push API) is a way for an app to provide other applications with real-time information. A webhook delivers data to other applications as it happens, meaning you get data immediately. Unlike typical APIs where you would need to poll for data very frequently in order to get it real-time. Hostaway Webhook module will allow you to know real-time whenever you have new guest messages or reservations on a platform of your choice like Slack, Zapier, Twilio and many many more.