conf/logback.xml

<!-- https://www.playframework.com/documentation/latest/SettingsLogger -->
<configuration>

    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>${application.home:-.}/logs/application.log</file>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <charset>UTF-8</charset>
            <pattern>%d{yyyy-MM-dd HH:mm:ss} %highlight(%-5level) %cyan(%logger{36}) %magenta(%X{pekkoSource}) %msg%n
            </pattern>
        </encoder>
    </appender>

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="net.logstash.logback.encoder.LogstashEncoder"/>
    </appender>

    <appender name="ASYNCFILE" class="ch.qos.logback.classic.AsyncAppender">
        <appender-ref ref="FILE"/>
    </appender>

    <appender name="ASYNCSTDOUT" class="ch.qos.logback.classic.AsyncAppender">
        <appender-ref ref="STDOUT"/>
    </appender>

    <root level="INFO">
        <appender-ref ref="ASYNCFILE"/>
        <appender-ref ref="ASYNCSTDOUT"/>
    </root>

</configuration>