TYPO3 logs error messages and exceptions to logfiles and the backend log module. This extension sends them to Sentry, a SaaS/self-hosted application which aggregates them and informs you by mail. In Sentry you see a error messages with additional information like stacktrace, HTTP headers and submitted request/form data.
Exceptions through database outages (imagine a mysql server restart) should not be reported, so the db connection is checked before. Exceptions may be excluded via regexp on their message (won't fix this error => exclude it). TYPO3 throws a lot of PHP Notices and they are not really interesting in production, they are excluded by default.
$ composer require networkteam/sentry-clientThe TER version will not receive updates anymore. Feel free to send us a crate of beer and we will make a new TER release.
File: system/settings.php or system/additional.php
Register the exception handlers.
$GLOBALS['TYPO3_CONF_VARS']['SYS']['productionExceptionHandler'] = Networkteam\SentryClient\ProductionExceptionHandler::class;
$GLOBALS['TYPO3_CONF_VARS']['SYS']['debugExceptionHandler'] = Networkteam\SentryClient\DebugExceptionHandler::class;The DebugExceptionHandler is also used in production environment when SYS/displayErrors is enabled and your IP matches SYS/devIPmask.
Optional: Forward non-exceptional errors to Sentry, that normally are logged only. Consider using LogLevel::WARN
$GLOBALS['TYPO3_CONF_VARS']['LOG']['writerConfiguration'] = [
    \TYPO3\CMS\Core\Log\LogLevel::ERROR => [
        \Networkteam\SentryClient\SentryLogWriter::class => [],
    ],
];Optional: Set sentry/sentry options (https://docs.sentry.io/platforms/php/configuration/options/)
$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['sentry_client']['options']['server_name'] = 'web3';Since Sentry SDK 2.x there are environment variables which can be used, for example in a .htaccess file:
SetEnv SENTRY_DSN http://[email protected]/project-id
SetEnv SENTRY_RELEASE 1.0.7
SetEnv SENTRY_ENVIRONMENT Staging
- Ignore database connection errors (they should better be handled by a monitoring system)
 - Report user information: Select one of 
none|userid - Ignore exception message regular expression
 - Ignore LogWriter Components
 
page = PAGE
page.20 = USER
page.20 {
  userFunc = Networkteam\SentryClient\Client->captureException
}This triggers an error that will be reported.
If the web server has set a request ID header X-Request-Id, this is transmitted as a tag to trace errors to logs.
This extension is managed on GitHub. Feel free to get in touch at https://github.com/networkteam/sentry_client
There is a Slack channel #ext-sentry_client
- Use sentry/sentry ^4.6
 
- New option "disableDatabaseLogging": When enabled, exceptions are not written to database table sys_log
 - Introduce Sentry Integrations
 - Allow passing sentry/sentry options via 
EXTCONF - Ignore exceptions, that are ignore in TYPO3 core
 - Use 
sentry/sentryinstead ofsentry/sdk(Thanks to @derhansen) - !!! Option "logWriterLogLevel" removed. LogWriter needs to be configured in 
system/additional.php - !!! Option "messageBlacklistRegex" renamed to "ignoreMessageRegex"
 - !!! Option "logWriterComponentBlacklist" renamed to "logWriterComponentIgnorelist"
 - !!! The old option names still work
 - !!! Drop support for TYPO3 v10
 - !!! Drop support for non-composer usage
 
- Add log message interpolation (Thanks to @sascha-egerer)
 - Add Fingerprint to log messages
 - Deprecated: Usage of DebugExceptionHandler
 
- Client IP is anonymized with 
IpAnonymizationUtility::anonymizeIp(). Thanks to @extcode - Add 
X-Request-Idas tag. Thanks to @bergo - Small code optimizations. Thanks to @tlueder and @LeoniePhiline
 
- Add stacktrace to LogWriter messages for message grouping in Sentry
 - Add LogWriter component ignorelist
 - Add v11.5 support
 - Drop v9.5 support
 
- Add experimental LogWriter
 - Remove setting activatePageNotFoundHandling
 - Ignore PageNotFoundException by default
 - Support TYPO3 proxy setting
 - Use sentry/sdk:3.1
 
- Use sentry/sdk:2.0
 - Remove setting productionOnly
 - Remove setting reportWithDevIP
 - Rename setting activatePageNotFoundHandlingActive to activatePageNotFoundHandling
 - Report E_ALL ^ E_NOTICE
 - Strip project root
 - Show event id in FE