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## Resource: wix-forum-backend

## Namespace: events

## Article: Introduction

## Article Link: https://dev.wix.com/docs/velo/apis/wix-forum-backend/events/introduction.md

## Article Content:

# Introduction
Wix Forum events are fired in your site's backend when certain changes occur in your forum.
 You can write event handlers that react to these events. Event handler functions
 receive data that correspond to the event that has occurred. Use event handlers
 to create custom responses to the events.

 > **Note:** Backend events do **not** fire when previewing your site.

 To add an event handler, add an **events.js** file to the **Backend** section
 of your code files if one does not already exist. All event handler functions for your
 site are defined in this file.

 Event handler functions are defined using the following pattern:

 ```javascript
 export function <wixAppName>_<eventName>(event) { }
 ```

 For example, an event handler that handles a forum post being created looks
 like this:

 ```javascript
 export function wixForum_onPostCreated(event) { }
 ```