==== Error ====
* mwversion: 1.43.0-wmf.1
* reqId: 2dfefd8a-3017-4bdc-b6b2-505ae978a15e
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2024-04-16T18:40:22.603Z',to:'2024-04-17T18:41:14.817Z'))&_a=(query:(query_string:(query:'reqId:%222dfefd8a-3017-4bdc-b6b2-505ae978a15e%22'))) | Find reqId in Logstash ]]
```name=normalized_message,lines=10
[{reqId}] {exception_url} PHP Deprecated: The "post" source is deprecated, use "body" instead [Called from MediaWiki\Rest\Validator\ParamValidatorCallbacks::getValue]
```
```name=exception.trace,lines=10
from /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/Validator/ParamValidatorCallbacks.php(60)
#0 [internal function]: MWExceptionHandler::handleError(integer, string, string, string, array)
#1 /srv/mediawiki/php-1.43.0-wmf.1/includes/debug/MWDebug.php(379): trigger_error(string, integer)
#2 /srv/mediawiki/php-1.43.0-wmf.1/includes/debug/MWDebug.php(350): MWDebug::sendRawDeprecated(string, boolean, string)
#3 /srv/mediawiki/php-1.43.0-wmf.1/includes/GlobalFunctions.php(798): MWDebug::deprecatedMsg(string, string, string, integer)
#4 /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/Validator/ParamValidatorCallbacks.php(43): wfDeprecatedMsg(string, string)
#5 /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/Validator/ParamValidatorCallbacks.php(60): MediaWiki\Rest\Validator\ParamValidatorCallbacks->getParamsFromSource(string)
#6 /srv/mediawiki/php-1.43.0-wmf.1/includes/libs/ParamValidator/TypeDef.php(120): MediaWiki\Rest\Validator\ParamValidatorCallbacks->getValue(string, NULL, array)
#7 /srv/mediawiki/php-1.43.0-wmf.1/includes/libs/ParamValidator/ParamValidator.php(525): Wikimedia\ParamValidator\TypeDef->getValue(string, array, array)
#8 /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/Validator/Validator.php(152): Wikimedia\ParamValidator\ParamValidator->getValue(string, array, array)
#9 /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/Handler.php(223): MediaWiki\Rest\Validator\Validator->validateParams(array)
#10 /srv/mediawiki/php-1.43.0-wmf.1/extensions/OAuth/src/Rest/Handler/AuthenticationHandler.php(99): MediaWiki\Rest\Handler->validate(MediaWiki\Rest\Validator\Validator)
#11 /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/Router.php(556): MediaWiki\Extension\OAuth\Rest\Handler\AuthenticationHandler->validate(MediaWiki\Rest\Validator\Validator)
#12 /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/Router.php(455): MediaWiki\Rest\Router->executeHandler(MediaWiki\Extension\OAuth\Rest\Handler\AccessToken)
#13 /srv/mediawiki/php-1.43.0-wmf.1/includes/Rest/EntryPoint.php(216): MediaWiki\Rest\Router->execute(MediaWiki\Rest\RequestFromGlobals)
#14 /srv/mediawiki/php-1.43.0-wmf.1/includes/MediaWikiEntryPoint.php(199): MediaWiki\Rest\EntryPoint->execute()
#15 /srv/mediawiki/php-1.43.0-wmf.1/rest.php(38): MediaWiki\MediaWikiEntryPoint->run()
#16 /srv/mediawiki/w/rest.php(3): require(string)
#17 {main}
```
==== Notes ====
This started during the 1.43.0-wmf.1 train rollout to group1. The rate is currently about 35 per 15 minutes. I'm making this a train blocker.