Reporting

Help with regular expression to extract fields

vineela
Path Finder

I need to write regular expression to extract few fields in this, but not able to figure this out. Can you please help me on the same.

X-Response-Timestamp: 2022-08-24T07:27:26.150Z x-amzn-Remapped-Connection: close ... 4 lines omitted ... X-Amzn-Trace-Id: Root=1-6305d2de-69ec840431ff21182b4a9f68 Content-Type: application/json {"code":"APS.MPI.2019","severity":"FATL","text":"Invalid Request","user_message":"Request id has already used."}


Above is the whole log. I need to extract code,severity and message. I cant able t understand the format and fetch.

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1 Solution

gcusello
SplunkTrust
SplunkTrust

Hi @vineela,

this seems to be a Json log, so you could try to use the spath command (https://docs.splunk.com/Documentation/Splunk/latest/SearchReference/Spath).

If anyway you want to use a regex, you could try something like this:

| rex "\"code\":\"(?<code>[^\"]+)\",\"severity\":\"(?<severity>[^\"]+)\".*\"user_message\":\"(?<user_message>[^\"]+)\""

that you can test at https://regex101.com/r/8Ggre7/1

Ciao.

Giuseppe

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0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi @vineela,

this seems to be a Json log, so you could try to use the spath command (https://docs.splunk.com/Documentation/Splunk/latest/SearchReference/Spath).

If anyway you want to use a regex, you could try something like this:

| rex "\"code\":\"(?<code>[^\"]+)\",\"severity\":\"(?<severity>[^\"]+)\".*\"user_message\":\"(?<user_message>[^\"]+)\""

that you can test at https://regex101.com/r/8Ggre7/1

Ciao.

Giuseppe

0 Karma

vineela
Path Finder

Hi gcusello,

                 It is working and thanks for introducing new command as well to me..I will try to check documentation for spath command.

Appreciate you for quick response

0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi @vineela,

good for you, see next time!

Ciao and happy splunking

Giuseppe

P.S.: Karma Points are appreciated 😉

0 Karma
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