Field Extraction for Unstructured Quotation/Pair delimiter

[SplunkDash]

Hello,

How, I would  write the regex for the  following events (3 sample events provided below). It has "," pair delimiter, but " (quotation) are missing  for one value (cit, shown in Bold) for some events. Any help will be highly appreciated, thank you.

"time_stamp":"2021-08-21 16:27:06 CDT","app_name":"CT-SATCUP","user_type":"TFilter","file_source_cd":"1","TFilterType":"0","ip_addr":"2300:1700:5c08:1030:6d93:7462:b15d:185c","session_id":"k/NJGhc8dU3OtYoRsrJ+pQzDdYE=","cit":"23235672174,"request_id":"32as3eee0a-0a31-6214a4e28-7e7fc700-6d792b5b203e","user_id":"cit1ddf82-bf36-40ca-84ae-7964b5680564","return_cd":"00","event_type":"SATCUP"  

"time_stamp":"2021-08-21 16:27:05 CDT","app_name":"CT-SATCUP","user_type":"TFilter","file_source_cd":"1","TFilterType":"0","ip_addr":"2400:1700:5c08:1030:6d93:9462:b15d:185c","session_id":"k/NJGhc8dU3OtYoRsrJ+pQzDdYE=","cit":"232356756174","request_id":"31as3eee0a-0a31-6214a4e28-7e7fc700-6d792b5b203e","user_id":"cit1ddf82-bf36-40ca-84ae-7964b5680564","return_cd":"01","event_type":"SATCUP"  

"time_stamp":"2021-08-21 16:27:08 CDT","app_name":"CT-SATCUP","user_type":"TFilter","file_source_cd":"4","TFilterType":"0","ip_addr":"2100:1700:5c08:1030:6r93:7462:b15d:185c","session_id":"k/NJGhc8dU3OtYoRsrJ+pQzDdYE=","cit":"232356756174,"request_id":"31bs3eee0a-0a31-6214a4e28-7e7fc700-6d792b5b203e","user_id":"cit1ddf82-bf36-40ca-84ae-7964b5680564","return_cd":"01","event_type":"SATCUP" 

[PickleRick]

You can simply look for a field name in quotes and value not containing comma or quotation mark in possible quotes. Something like that

"(?<field_name>[^"]+)":"?(<?field_value>[^",]+)"?

 EDIT: Watch out, there is indeed a typo here.

[SplunkDash]

Hello,

Thank you so much for the Regex codes you provided. Two points with this code

1. Field Names and Associated Field Values are coming under different groups

2. All  Field Names are coming as "field_ name"

is there anyway we can pick the field_name from the events (i.e. time_stamp, app_name and so on)  and put/keep associated field name and its field value together 

Thank you again, appreciate your support in these efforts.

[PickleRick]

If you want dynamic field names, you might try something similar to this solution:

https://community.splunk.com/t5/Splunk-Search/How-to-extract-values/m-p/461411

[SplunkDash]

Thank you again, appreciated. But, just a little confused how I would incorporate this dynamic field names and associated field values selection code under this field extraction option/feature (see below the screenshot). Your support will be appreciated.....Thank you so much!!!

[PickleRick]

Ahhh, that's kinda different. The solution I pointed you to was about parsing explicitly in your search. If you want to define such extraction as extracted fields - to be honest, I haven't done it using GUI but I suppose you have to define it using transforms (settings -> fields -> field transformations) with regex containing

"(?<_KEY_1>[^"]+)":"?(<?_VAL_1>[^",]+)"

And no Format

And then define field extraction using this transformation (change type from "inline" to "uses transformation")

[scelikok]

@PickleRick,

There is a typo on second capture group;

"(?<field_name>[^"]+)":"?(?<field_value>[^",]+)"?

[PickleRick]

You're right. I was typing it on my tablet 🙂

Nice catch!