1. Edit the <PA_HOME>/conf/log4j2.xml file.
  2. In the Logger section, uncomment the AppenderRef element for the API audit log HAR file. 
           <!-- Audit Log Configuration-->
        <Logger name="apiaudit" level="INFO" additivity="false">
            <AppenderRef ref="APIAuditLog-File"/>
            <!--<AppenderRef ref="ApiAuditLog-Database-Failover"/>-->
            <!--<AppenderRef ref="ApiAuditLog-SQLServer-Database-Failover"/>-->
            <!--<AppenderRef ref="ApiAuditLog-PostgreSQL"/>-->
            <!--<AppenderRef ref="ApiAudit2Splunk"/>-->
            <AppenderRef ref="ApiAuditLog-HarFile"/>
        </Logger>
  3. In the Appenders section, uncomment the RollingFile. 
        <Appenders>
        ...
        <RollingFile name="ApiAuditLog-HarFile"
                            fileName="${sys:pa.home}/log/pingaccess_api_audit_har.log"
                            filePattern="${sys:pa.home}/log/pingaccess_api_audit_har.%d{yyyy-MM-dd}.log"
                            ignoreExceptions="false"> 
            <StatusCodeRegExFilter regex=".*"/>
            <HarLogLayout>
                <KeyValuePair key="AUDIT.metadata" value="true"/>
                <KeyValuePair key="AUDIT.http-client" value="true"/>
            </HarLogLayout>
            <Policies>
                <TimeBasedTriggeringPolicy />
            </Policies>
        </RollingFile>
  4. Optional: To filter the entries to add to the log file, edit the value of the StatusCodeRegExFilter element.
  5. Optional: To specify what information to log, add or edit the values in the HarLogLayout section of the RollingFile element.

    You can add or edit metadata and client response values. For more information, see Traffic logging reference.

Logging begins when the configuration reloads. The configuration reloads at regular intervals according to the monitorInterval value.