Splunk Search

Field extraction using dynamic regular expression - rex command

arpitpropay
Explorer

I am trying to extract key value pairs from JSON events using rex command

mysearch | rex field=_raw max_match=0 "\"(?<Key>\b\w+[^\":]*)\":(?!\s*{\[)\"*(?<Value>(?!\[{|{|\[)[^(,|}|\")]*)" 

I have a single column CSV lookup with all the key names I am interested in

| inputlookup my_fields_json.csv | fields FieldName 

Is there a way to use the lookup to make my rex command regular expression dynamic so I only extract the fields I am interested in?

0 Karma

harsmarvania57
SplunkTrust
SplunkTrust
0 Karma
Get Updates on the Splunk Community!

Enterprise Security Content Update (ESCU) | New Releases

In the last month, the Splunk Threat Research Team (STRT) has had 2 releases of new security content via the ...

Announcing the 1st Round Champion’s Tribute Winners of the Great Resilience Quest

We are happy to announce the 20 lucky questers who are selected to be the first round of Champion's Tribute ...

We’ve Got Education Validation!

Are you feeling it? All the career-boosting benefits of up-skilling with Splunk? It’s not just a feeling, it's ...