Integration Broker - multiple domain - which domain is used?

Hi,

• We have 2 active domains in the integration broker ⇒ == multiple rows in "select * from PSAPMSGDOMSTAT"
• So we also have 2 "Gateway error log file" == "errorLog.html"
• I am using a "Code-only REST Request" ⇒ https://blog.jsmpros.com/2022/09/simple-code-only-rest-request.html

question: using the "Code-only REST Request" ("%IntBroker.ConnectorRequest(&req);"), how do I know which one of the domains the Integration Broker is using, and which logfile I should check?

Kind regards, Bart