log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
  <Appenders>
    <Lambda name="LambdaText" format="TEXT">
      <LambdaTextFormat>
        <PatternLayout>
          <pattern>%-5p %c{1} - %m%n</pattern>
        </PatternLayout>
      </LambdaTextFormat>
    </Lambda>
    <Lambda name="LambdaJson" format="JSON">
      <LambdaJsonFormat>
        <JsonTemplateLayout eventTemplateUri="classpath:LambdaLayout.json" />
      </LambdaJsonFormat>
    </Lambda>
  </Appenders>
  <Loggers>
    <Logger name="json-test" level="DEBUG" additivity="false">
      <AppenderRef ref="LambdaJson" />
    </Logger>
    <Root level="DEBUG">
      <AppenderRef ref="LambdaText" />
    </Root>
  </Loggers>
</Configuration>