What would be the correct Regular Expression to extract ID from href in below html for jmeter regular expression

Question

My HTML code is:

<a class="view-details-ul-none" href="javascript:printCertificate('11673191')">

I try this expression: href="javascript:printCertificate(\\)|\\(.*?)"> it return me the ID but along id number it return brackets and comma too, like below image:

When I pass this regular expression to next request as parameter my url become wrong and http send 500 http error code. because url looks like this:

GET https://Domain/path/completionCertificate.pdf?Id=('11673191')

Could anyone please help me in this would be appreciated.

Answer 1

Go for the following regular expression:

<a class="view-details-ul-none" href="javascript:printCertificate\('(\d+)'\)">

Demo:

Remember to escape the following characters outside character classes:

.^$*+?()[{\|

and these inside the character classes:

^-]\

References:

• What special characters must be escaped in regular expressions?
• Using RegEx (Regular Expression Extractor) With JMeter