Splunk Search

Use variable as complete search string

ameyad
Engager

I am trying to create a dashboard. It has two input text fields.
I want to run a search query based on these two inputs.

If input A is null AND input B is null then no search results
If input A is not null AND input B is null then search using only A
If input A is null AND input B is not null then search using only B

If input A is null AND input B is not null then search using both A and B

Following is my query. It returns no results 

 

Properties.application="xyz.api"
| spath Level 
| search Level!=Verbose AND Level!=Debug
| eval search_condition_fnum=if(len(trim("$text_fnum$"))=0 OR isnull("$text_fnum$"), "", "RenderedMessage=\"*$text_fnum$*\"")
| eval search_condition_fdate=if(len(trim("$text_fdate$"))=0 OR isnull("$text_fdate$"), "", "RenderedMessage=\"*$text_fdate$*\"")
| eval combined_search_condition=mvjoin(mvfilter(search_condition_fnum!="") + mvfilter(search_condition_fdate!=""), " OR ")
| table search_condition_fnum, search_condition_fdate, combined_search_condition
| search [| makeresults | eval search_condition=mvjoin(mvfilter(search_condition_fnum!="") + mvfilter(search_condition_fdate!=""), " OR ") | fields search_condition]

 



Labels (2)

yuanliu
SplunkTrust
SplunkTrust

It appears to me that you are overthinking the search language.  Assuming that RenderedMessage is already extracted (as is implied in your illustrated code), you can use

roperties.application="xyz.api"
  (RenderedMessage="*$text_fnum$*" AND RenderedMessage="*$text_fdate$*")
| spath Level 
| search Level!=Verbose AND Level!=Debug
| eval combined_search_condition=mvjoin(mvfilter(search_condition_fnum!="") + mvfilter(search_condition_fdate!=""), " OR ")

If you run this on paper, you will see that the wildcards will cause the search to behave as you described.

Get Updates on the Splunk Community!

Why You Can't Miss .conf25: Unleashing the Power of Agentic AI with Splunk & Cisco

The Defining Technology Movement of Our Lifetime The advent of agentic AI is arguably the defining technology ...

Deep Dive into Federated Analytics: Unlocking the Full Power of Your Security Data

In today’s complex digital landscape, security teams face increasing pressure to protect sprawling data across ...

Your summer travels continue with new course releases

Summer in the Northern hemisphere is in full swing, and is often a time to travel and explore. If your summer ...