Splunk Search

How do I write a regular expression to extract 2 fields from my sample data?

JoshuaJohn
Contributor

So I have a search that will check if two variables equal a specific number, and then I get the count of these instances. I am having trouble regexing the numbers I needed to create the variables.

index=nitro_prod_ecomm errorCode |rex (This grabs the Response Code) | rex (This grabs Error Code) | where RespCode = 400 AND ErrorCode = 1001 | table count

REQUEST_BODY:
{profileId:0156",deviceId:D893-4324234234C"}
RESPONSE_CODE:400
RESPONSE_TIME:2
RESPONSE_HEADERS:
Date:Wed, 14 Sep 2016 15:10:17 GMT;
X-Powered-By:Servlet/3.0;
correlation-id:NAID-iOS-E6B4F6817.94320;
channel:IOS;
Content-Type:application/json;
Transfer-Encoding:chunked;
Connection:Close;
RESPONSE_BODY:
{"errors":[{"errorCode":"1001","message":""}]}

_WS_HAPRT_WLMVERSION:-1;
RESPONSE_CODE:500
RESPONSE_TIME:11
RESPONSE_HEADERS:
X-Powered-By:Servlet/3.0;
correlation-id:TID-14743243247;
Content-Type:application/json;
Transfer-Encoding:chunked;
Connection:Close;
Date:Wed, 14 Sep 2016 15:33:13 GMT;
RESPONSE_BODY:
{"errors":[{"errorCode":"1010","message":""}]}

0 Karma
1 Solution

sundareshr
Legend

Try these two regex

... | rex "errorCode\"\:\"(?<err_code>\d+)\"" | rex "RESPONSE_CODE\:(?<resp_code>\d+)"

View solution in original post

sundareshr
Legend

Try these two regex

... | rex "errorCode\"\:\"(?<err_code>\d+)\"" | rex "RESPONSE_CODE\:(?<resp_code>\d+)"

somesoni2
Revered Legend

Try this

index=nitro_prod_ecomm errorCode |rex "RESPONSE_CODE:(?<RespCode>\d+)" | rex "\"errorCode\":\"(?<ErrorCode>\d+)\"" | where RespCode = 400 AND ErrorCode = 1001 | stats count
0 Karma

PPape
Contributor

you could try those two:

rex field=_raw "RESPONSE_CODE:(?P<RespCode>\d+)"

rex field=_raw "errorCode\":\"(?P<ErrorCode>\d+)"

Edit: escaped quotes and used + thanks to richgalloway

0 Karma

richgalloway
SplunkTrust
SplunkTrust

The quotes with the regex will have to be escaped.
I prefer to use \d+ to avoid assumptions about the length of a number.

---
If this reply helps you, Karma would be appreciated.
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...

What Is the Name of the USB Key Inserted by Bob Smith? (BOTS Hint, Not the Answer)

Hello Splunkers,   So you searched, “what is the name of the usb key inserted by bob smith?”  Not gonna lie… ...

Automating Threat Operations and Threat Hunting with Recorded Future

    Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 | Register   Is your ...