topic Re: Customize request naming with regex extraction rule in Open Q&A

Customize request naming with regex extraction rule

diana — Tue, 30 Mar 2021 19:50:51 GMT

Hi all,

Need to create a global request naming rule which will extract everything before the last / and then append <ID> to the resulting name. Having trouble creating a regex pattern that does not break DT's rules (it's either greedy or too expensive). Could someone help out with this one?

Input examples:

/URI-A/URI-B/URI-C/URI-D/04w0da444d979e74GSDFGS92f75e0d1e187f9?timestamp=1234 /URI-A/URI-B/URI-C/04w0da444d979e74GSDFGS92f75e0d1e187f9?timestamp=1234

Regex Extraction > everything before the last /= {Cleaned-Placeholder}

/URI-A/URI-B/URI-C/URI-D/ /URI-A/URI-B/URI-C/

Request naming rule = {Cleaned-Placeholder}/<ID>

/URI-A/URI-B/URI-C/URI-D/<ID> /URI-A/URI-B/URI-C/<ID>

Re: Customize request naming with regex extraction rule

DanielS — Wed, 31 Mar 2021 00:52:53 GMT

Hope that one of these two options help

1st option:

2nd option:

Re: Customize request naming with regex extraction rule

diana — Tue, 06 Apr 2021 19:33:52 GMT

Unfortunately, both are invalid options - the second one is greedy and has multiple capture groups which are some of the DT regex restrictions 😞

https://www.dynatrace.com/support/help/shortlink/regex#restrictions

Re: Customize request naming with regex extraction rule

Babar_Qayyum — Wed, 07 Apr 2021 03:58:08 GMT

Hello @diana

Please try the following:

(?>.+\/)

Regards,

Babar

Re: Customize request naming with regex extraction rule

diana — Wed, 07 Apr 2021 18:31:36 GMT

Hey @Babar_Qayyum , it doesn't like that one either.

Re: Customize request naming with regex extraction rule

Babar_Qayyum — Thu, 08 Apr 2021 06:59:51 GMT

Hello @diana

Please try the following.

(\DURI\D+\W+)

Regards,

Babar

Re: Customize request naming with regex extraction rule

Radu — Thu, 08 Apr 2021 07:56:24 GMT

Hi Diana,

Try this one...

(.*?\/)[^\/]++\/?$

It will extract everything up to and including the final "/" of the URL, and it will be accepted by Dynatrace regex for request naming rules.

Best regards,

Radu

Re: Customize request naming with regex extraction rule

diana — Fri, 09 Apr 2021 15:42:25 GMT

Hi Radu,

That one is also not accepted:

Re: Customize request naming with regex extraction rule

Radu — Mon, 12 Apr 2021 06:34:52 GMT

Sorry, forgot to add the ^ at the beginning:

^(.*?\/)[^\/]++\/?$

Re: Customize request naming with regex extraction rule

diana — Mon, 12 Apr 2021 17:43:12 GMT

Awesome, that works! Thanks Radu 😊