topic Re: request attribute - Web request URL - regex - extract second part of URI in Open Q&A

request attribute - Web request URL - regex - extract second part of URI

Yosi_Neuman — Wed, 27 Jun 2018 19:41:50 GMT

Hi guys,

What should be the right regex in order to extract the second part of the URI?

In the followed example we would like to get vh3

Re: request attribute - Web request URL - regex - extract second part of URI

JamesKitson — Wed, 27 Jun 2018 20:18:48 GMT

media\/([^\/?]*+) might work if you're only interested in that specific pattern. I was trying to test it but it seems to keep crashing my page.

For reference here's a good doc on regex in Dynatrace: https://www.dynatrace.com/support/help/organize-monitored-entities/reference/how-do-i-use-regular-expressions-in-dynatrace/

James

Re: request attribute - Web request URL - regex - extract second part of URI

Yosi_Neuman — Thu, 28 Jun 2018 02:14:16 GMT

Hi James,

Thanks for your answer

I read this page and tried few times different ways with no luck....

Your regex seem to invalid

Re: request attribute - Web request URL - regex - extract second part of URI

gilgi — Thu, 28 Jun 2018 05:18:59 GMT

post processing options allow for splitting the values, which will create an array of the different parts (assuming the delimiter is /). The question is how do I retrieve only the second element of that array

Re: request attribute - Web request URL - regex - extract second part of URI

michael_kopp — Thu, 28 Jun 2018 12:04:19 GMT

the split actually puts multiple values on the request, so that is not what you want here.

instead of that remove the split ad do a regex that will go for the second part. this regex should do the trick, it jumps over part one and takes part two.

/[^/]++/([^/]++)

Re: request attribute - Web request URL - regex - extract second part of URI

Yosi_Neuman — Thu, 28 Jun 2018 13:47:02 GMT

Thanks Michael

This one is look working