Splunk Enterprise Security

pass field value in search as an argument to be used in a macro

hexerino
Explorer

Hi,

I am trying to figure out how to pass a field value in the search to a macro which interprets it and does further processing through a lookup table.

I have consulted multiple threads but due to karma cannot link to them. Currently my approach is as follows:

Search

index=my_index my_custom_field="the_value_to_filter_for" | map search="|`my_processing_macro($my_custom_field_)`"

Macro: my_processing_macro(1) (argument defined as name)

lookup my_lookup_table_def $name$ as lookup_table_column1

Lookup table (CSV-format): linked to lookup table definition

lookup_table_column1,lookup_table_column2
value_i_pass_in_macro, value_i_want_returned

So in short, the value I pass in my_custom_field corresponds to a column1 row in the lookup table. Basically column 2 contains the regex or other macro's to expand during processing.

0 Karma

lakshman239
Influencer

The below search should work .. are you seeing any errors? You need $$ and test your macros by using both |yourmacro(1)` pipe and without pipe and adjust

index=my_index my_custom_field="the_value_to_filter_for" | map search=" search `my_processing_macro($my_custom_field$)`"
0 Karma

hexerino
Explorer

After long deliberation we decided to adopt a different filtering strategy. This method worked after some alteration. Thank you for your suggestion !

0 Karma

lakshman239
Influencer

Glad it helped. Pls vote to accept the comment/answers and also post your answers for future readers.

0 Karma
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.


Introducing Unified TDIR with the New Enterprise Security 8.2

Read the blog
Get Updates on the Splunk Community!

.conf25 Community Recap

Hello Splunkers, And just like that, .conf25 is in the books! What an incredible few days — full of learning, ...

Splunk App Developers | .conf25 Recap & What’s Next

If you stopped by the Builder Bar at .conf25 this year, thank you! The retro tech beer garden vibes were ...

Congratulations to the 2025-2026 SplunkTrust!

Hello, Splunk Community! We are beyond thrilled to announce our newest group of SplunkTrust members!  The ...