Setting a 'Probe Parameter' value in a Connector Instance

[Community Alums]

Hi

Ive just written a Connector Definition to connect to Cisco SDWAN / vManage and built it using ideas from other Connector scripts (ie SolarWinds).

The API that i have returns events for a fixed period (ie the last 30 mins), so when i run this every 5 mins i see up to 6 occurrences of the same event in the event table. Whilst this strictly speaking is not a problem for Event processing, we don't want to see multiples. So I borrowed the idea of leveraging the 'last_event' time Parameter in order to cut out duplicate events. 

The script uses the updateLastSignatureFunction (), which updates and returns a 'retVal' object containing a 'last_event' value , and the 'retVal' object is then passed back to the execute() function, and returned by that. 

updateLastSignature: function(events, retVal) {
    // the last signature is either on the first or the last event
    var firstEventSignature = events[0].getField('entry_time'); 
    var lastEventSignature = events[events.length-1].getField('entry_time');
    this.debug('updateLastSignature: firstEventSignature: ' +firstEventSignature);
    this.debug('updateLastSignature: lastEventSignature: ' +lastEventSignature);
    if (parseInt(firstEventSignature) >= parseInt(lastEventSignature))
        retVal['last_event'] = firstEventSignature;
    else
        retVal['last_event'] = lastEventSignature;   
},

I can see the value is successfully set, and when run again it is retrieved using

        .......     = this.probe.getParameter("last_event");

This works a dream, however especially during development i want the ability to reset the 'last_event' value. For example I have tried adding

    retVal['last_event'] = '';

to the end of the testConnection() function but that doesn't seem to work.

Any suggestions on where this parameter value is stored, and how i can reset this value on demand please?

Many Thanks

David

[Per Kristian1]

I guess you found it but for future reference it is in the Connector Instance (em_connector_instance) variable: <last_event_signature>2025-02-07T06:23:19.744Z</last_event_signature>