import VersionedLink from '@site/src/components/VersionedLink'; import EventTriggers from '@site/static/icons/features/event_triggers.svg'; import Thumbnail from '@site/src/components/Thumbnail';

<EventTriggers /> Event Triggers

<div className="overview-header"> <div className="overview-text"> <p> Hasura Event triggers are a way to automate asynchronous logic when changes are made in a connected database. </p> <p> Event Triggers can be configured to activate when there is an <code>INSERT</code>, <code>UPDATE</code> or &nbsp; <code>DELETE</code> event in a table. Additionally, you can manually trigger an event through a button set up in the Hasura Console. </p> <h4>Quick Links</h4> <ul> <li> <VersionedLink to="/event-triggers/quickstart">Quickstart with Event Triggers.</VersionedLink> </li> </ul> </div> <iframe src="https://www.youtube.com/embed/9vZeQ5tHiQo" frameBorder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowFullScreen /> </div>

<Thumbnail className="no-shadow overview-img" src="/img/event-triggers/data-triggers-arch.png" alt="Hasura Event Trigger architecture" width="100%" />

Event Trigger Links

<div className="overview-gallery"> <VersionedLink to="/event-triggers/payload/"> <div className="card"> <h3>Payload structure</h3> <p>Check out the format and structure of the request payload.</p> </div> </VersionedLink> <VersionedLink to="/event-triggers/serverless/"> <div className="card"> <h3>Call a serverless endpoint</h3> <p>Call serverless functions with Event Triggers to not have to manage any dedicated infrastructure.</p> </div> </VersionedLink> <VersionedLink to="/event-triggers/invoke-trigger-manually/"> <div className="card"> <h3>Invoke a trigger manually</h3> <p>Optionally set an Event Trigger to be invoked with a button in the Console.</p> </div> </VersionedLink> </div>