topic Re: Help Applying a Cleaning Rule for a User Tag in Dynatrace SaaS and Managed in Real User Monitoring

Help Applying a Cleaning Rule for a User Tag in Dynatrace SaaS and Managed

victor_segovia — Fri, 30 Sep 2022 12:18:17 GMT

We have customer with which we are monitoring RUM in some Applications using Dynatrace Managed, from one of this applications (in a certain page) we need to extract a User Name so this can be used as a User Tag for the Application; the Issue is that there is no alternative but to use a CSS Selector to extract the data, but the selector applies to more that just the User Name; so we are extracting something like this:

Welcome Mr(s): <User Name>, <Some User-Selected Welcome Phrase>, Change your Avatar (options).

We are having trouble extracting (or cleaning) this retrieved text (so we can just get the <User Name> as requested by the costumer); we tried with a cleaning rule like this:

Welcome Mr(s): ([a-zA-Z\s]*), Change your Avatar (options).

But Dynatrace refuse to accept this rule because of the additional parenthesis: “Regular Expression must contain only 1 capture group”.

What we can do to fix this? Or to extract more efficiently the User Name?

Re: Help Applying a Cleaning Rule for a User Tag in Dynatrace SaaS and Managed

bernhard_lackn1 — Fri, 09 Mar 2018 09:32:17 GMT

parantheses have a special meaning in regex.

plz try to escape them:

Welcome Mr\(s\): ([a-zA-Z\s]*), Change your Avatar \(options\).

Re: Help Applying a Cleaning Rule for a User Tag in Dynatrace SaaS and Managed

victor_segovia — Wed, 14 Mar 2018 22:36:34 GMT

Sadly, we have already perform your suggestion regarding the parenthesis and Dynatrace now is unable to retrieve anything.

Re: Help Applying a Cleaning Rule for a User Tag in Dynatrace SaaS and Managed

bernhard_lackn1 — Thu, 15 Mar 2018 07:50:34 GMT

i tested with an online regex tester(https://www.regexpal.com/):

your regex is incorrect. this one would work:

Welcome Mr\(s\): ([a-zA-Z\s]*), .*, Change your Avatar \(options\)