---
title: "Events (PSR-14)"
manual: "LUX"
version: "44.4"
permalink: "https://docs.typo3.org/permalink/in2code/lux:events-psr-14@44.4"
source: "Technical/Events/Index.md"
rendered: "2026-10-01T13:13:23+00:00"
---

![LUX](../../Images/logo_claim.svg#gh-light-mode-only) ![LUX](../../Images/logo_claim_white.svg#gh-dark-mode-only)

### Events (PSR-14) {#events-psr-14}

Lux offers a lot of EventDispatchers - a technique to hook into Lux runtime with your extension to extend the existing functionality. Contact us if you need further events.

#### List of events {#list-of-events}

| Dispatcher located in | Event Name | Description |
| --- | --- | --- |
| AttributeTracker::addAttribute() | \\In2code\\Lux\\Events\\AttributeCreateEvent | This event can be used when an attribute is added to a visitor |
| AttributeTracker::addAttribute() | \\In2code\\Lux\\Events\\Log\\LogVisitorIdentifiedByFieldlisteningEvent | Do something when a visitor was just identified by method "Fieldlistening" |
| AttributeTracker::addAttribute() | \\In2code\\Lux\\Events\\Log\\LogVisitorIdentifiedByFormlisteningEvent | Do something when a visitor was just identified by method "Formlistening" |
| AttributeTracker::addAttribute() | \\In2code\\Lux\\Events\\Log\\LogVisitorIdentifiedByEmail4linkEvent | Do something when a visitor was just identified by method "Email4link" |
| AttributeTracker::addAttribute() | \\In2code\\Lux\\Events\\Log\\LogVisitorIdentifiedByLuxletterlinkEvent | Do something when a visitor was just identified by method "Luxletterlink" |
| AttributeTracker::addAttribute() | \\In2code\\Lux\\Events\\Log\\LogVisitorIdentifiedByFrontendauthenticationEvent | Do something when a visitor was just identified by method "Frontendauthentication" |
| EventTracker::track() | \\In2code\\Lux\\Events\\Log\\EventTrackerEvent | Hook into pushes for event tracks |
| AttributeTracker::getAndUpdateAttributeFromDatabase() | \\In2code\\Lux\\Events\\AttributeOverwriteEvent | This event can be used when an attribute of a visitor is updated |
| DownloadTracker::addDownload() | \\In2code\\Lux\\Events\\Log\\DownloadEvent | This event can be used when a visitor downloads a file |
| FrontendController::afterAction() | \\In2code\\Lux\\Events\\AfterTrackingEvent | This event is used for every kind of frontend/tracking/ajax request in the Frontend Controller |
| FrontendController::getError() | \\In2code\\Lux\\Events\\AfterTrackingEvent | Same as afterAction() but called when an error came up while tracking |
| LinkClickTracker::addLinkClick() | \\In2code\\Lux\\Events\\Log\\LinkClickEvent | This event can be used when a linkclick is tracked from LUX |
| NewsTracker::track() | \\In2code\\Lux\\Events\\NewsTrackerEvent | This event can be used when a news visit is tracked from LUX |
| PageTracker::trackPage() | \\In2code\\Lux\\Events\\PageTrackerEvent | This event can be used when a pagevisit is tracked from LUX |
| Readable::\_\_construct | \\In2code\\Lux\\Events\\ReadableReferrersEvent | This event can be used to extend the readable referrer list |
| SearchTracker::track() | \\In2code\\Lux\\Events\\Log\\SearchEvent | This event can be used when a visitor searches with a searchterm that would be tracked from LUX |
| SendAssetEmail4LinkService::sendMail() | \\In2code\\Lux\\Events\\Log\\LogEmail4linkSendEmailEvent | This event can be used when email4link function sends an email to the visitor |
| SendAssetEmail4LinkService::sendMail() | \\In2code\\Lux\\Events\\Log\\LogEmail4linkSendEmailFailedEvent | This event can be used when email4link function fails to send an email to the visitor (e.g. file is not allowed, file is not existing, etc...) |
| SendAssetEmail4LinkService::send() | \\In2code\\Lux\\Events\\SetAssetEmail4LinkEvent | This event can be used to manipulate the MailMessage object just before sending email4link mail |
| CrawlerDetectionService::isCrawler() | \\In2code\\Lux\\Events\\DetectCrawlerEvent | This event can be used to mark a user agent as crawler (or to allow a user agent that was detected as crawler) |
| VisitorFactory::\_\_construct() | \\In2code\\Lux\\Events\\StopAnyProcessBeforePersistenceEvent | This event can be used to stop the persistence process by throwing an exception (e.g. if a UserAgent does not fit, etc...) |
| VisitorFactory::getVisitor() | \\In2code\\Lux\\Events\\VisitorFactoryBeforeCreateNewEvent | This event can be used just before a new visitor object will be build |
| VisitorFactory::getVisitor() | \\In2code\\Lux\\Events\\VisitorFactoryAfterCreateNewEvent | This event can be used just after a new visitor object was build |
| VisitorFactory::createNewVisitor() | \\In2code\\Lux\\Events\\Log\\LogVisitorEvent | This event can be used when a new visitor is persisted |
| VisitorMergeService::merge() | \\In2code\\Lux\\Events\\VisitorsMergeEvent | This event can be used when visitors were merged (re-identified) |

#### Usage of SignalSlots in your extension {#usage-of-signalslots-in-your-extension}

Look at the official documentation how to work with PSR-14 events in TYPO3 in general: [https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/Events/EventDispatcher/Index.html](https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/Events/EventDispatcher/Index.html)

**Note**: Sometimes it's easier to use a finisher instead of dealing with events (see [Finisher](https://docs.typo3.org/permalink/in2code/lux:finisher@44.4))