I'm new to jmeter and I'm facing an issue with Regular Expression Extractor.
Details:
Http request: /apps/Account/LogOn/TestFirm
This is the response I've received (I've edited for security purpose).
The response from the result tree appears to be from redirected message, probably its hidden response.
<html><head><title>Object moved</title></head><body>
<h2>Object moved to here.</h2>
</body></html>
!DOCTYPE html>
Now I need to capture SAMLRequest and I've used Regular Expression Extractor with the below information:
Reference Name: SAMLRequest
Regular Expression: SAMLRequest=(.+?)">here
Template: $1$
Match no (0 for random): 1
Default value:
And in the following HTTP Request I've used ${SAMLRequest} and in the request message it goes as ${SAMLRequest} instead of the value. I think nothing is being captured.
Can anyone please help me on how to capture the hidden response as shown above?
Also, what is RelayState? Is it applicable here?
Edit:
191 - is where the SAMLRequest is received from the response.
I have added Regular Expression Extractor, I guess here the value is hidden or something?
193 - I'm using ${SAMLRequest} and in the request body I can see
&SAMLRequest=${SAMLRequest}
instead of the actual value.
You may want to check the "Apply to" checkbox in the Regular expression extractor. This parameter defines which regular expression will be applied to either only main sample results or to the embedded resources too.
The Reg Ex which you have written is correct, Check where exactly this SAMLRequest is generating and use the Reg Ex there.
Try to use the match no as 0 and also make sure that the filed to check is Response Headers(since i could see that the value is generating in the header tag) and the regular expression
You may want to consider doing this with a BSF preprocessor, This will give you the full range of java string parsing operations.
Of course, there will be a way to make this work with a regular expression extractor, but BSF preprocessor, should work equally well, and may allow you to get around a roadblock by using a syntax you are more used to (if you are more used to java)
Related
I have issue with debug sampler not showing regular expression extractor in Jmeter. Kindly refer the tree below:
Here is the information in my regular expression extractor:
There's no regular expression variables shown in debug sampler output:
Can help to see what's the real issue here? FYI I'm scripting using webtours demo website & havent parameterize username and password yet coz i want to make sure my correlation works first. Thanks.
Without seeing the response it's hard to say what is wrong, most probably your Regular Expression Extractor fails somewhere somehow, as per documentation:
Template
The template used to create a string from the matches found. This is an arbitrary string with special elements to refer to groups within the regular expression. The syntax to refer to a group is: '$1$' to refer to group 1, '$2$' to refer to group 2, etc. $0$ refers to whatever the entire expression matches.
so for sure you need to change $1 to $1$
Using regular expressions for parsing HTML is not the best idea, I would recommend consider using CSS Selector Extractor instead, the relevant configuration would be something like
I don't think your PostProcessor placement is correct, it's a Post processor so according to the JMeter test elements execution order it is executed after the sampler and you're trying to use the variable in the same request. So my expectation is that you need to move it under the "Homepage" sampler
Add HTTP Cookie Manager to your Test Plan
How can I extract the response using a regular expression for Jmeter.
Jmeter is not extracting the response item that I want to extract. I've tried several times, but I failed. How can I extract the response item?
Response data is as shown in the screenshot:
The value which I need to extract has been highlighted.
I tried extracting using the following expression, but it failed:
<h2>.+?<a hfref="http://(.+?)">.+?</a>.</h2>
Please follow the below steps to extract the Id value.
In your Regular Expression Extractor, configure below details. Use the regular expression as Public/FormsPreview.aspx\?Id\=(.+?)& to retrieve the Id.
You can use other unique left/right boundaries as well, as your regular expression.
How to validate your regular expression extractor?
To validate your regular expression extractor, add a Debug Sampler (Right Click on your thread group > Add > Sampler > Debug Sampler)
Execute the test plan
In View Results Tree you can see the c_ID value as shown below.
Depending on how vary can result be (I mean, how the form is changing? is that only querystring Id parameter that is different? could there be another response (than Object Moved) with Id that you don't want to parse? etc.), the regular expression in the Regular Expession Extractor Post-Processor (which fits best here) would be different.
From simplest context-agnostic, Id=(\d+) (that is considering you have numeric Id), to making it case-insensitive (?i)Id=(\d+) and/or alphanumeric Id=([0-9a-zA-Z]+), or even whatever symbols are in (but you'd be forced to start to include context in this case ) Id=(.+?)& - and up to one that uses broader context evaluating the whole multiline stuff, like (?im)<title>Object\smoved</title>.+<a\shref=.+Id=(\d+)
And don't forget to use $1$ as your Template and take the Match 1.
I suggest you to stick to the most narrow and most context-agnostic one you can afford (the very first example here).
Add some assertions to make sure you're on the right page - despite the fact they executed after post-processors, you'd see something is wrong, at least.
You can add regular expression extractor like following
Regular Expression -"p_instance" value="(.*?)"
Match count: 1
Match[1][0]="p_instance" value="11917272245034"
Match[1][1]=11917272245034
When added $1$ in template - error is displayed(request is not created)
$1$$1$ is dding duplicate strings in the request.
What should be the template to fetch this value
Just add a Debug Sampler to your Test Plan - this way you will be able to see all the variables generated by the Regular Expression Extractor in the View Results Tree listener. See How to Debug your Apache JMeter Script article for more details.
Going forward when asking for a help with the regular expressions include essential part of the response and indicate which value you are looking for.
Here comes mandatory advice not to use regular expressions for parsing HTML and suggestion to use CSS/JQuery Extractor or XPath Extractor instead.
How to pass jmeter response data (ex: getting response 295 without any lable) to next http request url path/body. This 3 digits/4 digits number is dynamically generated for every run and this value i have to use it for next API calls. Since this value is not having any lable/attribute name not sure how to extract this value. Please suggest.
Regular Expression Configuration:
Reference Name: anything
Regular Expression: (.+)
Template: $1$
Match No.(O for Random): 1
The Reference name should be passed as the variable in the next HTTP request URL path/body.
Screenshot from Regex Test in View Results Tree.
If you need to extract a single numeric value, the relevant regular expression will be as simple as (\d+). See Perl 5 Regex Cheat sheet for quick reference.
If in future you will need a regular expression which return the whole response (including line breaks, special characters, whatever), as per How to Extract Data From Files With JMeter article it will be something like (?s)(^.*)
I did read few responses but my regular expression extractor is not working.
Mine is a simple case where this is my response
token.id=AQIC5wM2LY4Sfcz4cOT2RrremxWJmM3llZmPl6k0bP_r5D4.AAJTSQACMDUAAlNLABQtNDI1OTg4NzgxODg5MDM1ODU2NQACUzEAAjI3
I am trying to grab the value using this expression
token.id="(.*?)"
which is not saving the value into the variable i assigned. My next request when trying to use the value fails since its not grabbing it.
Can someone let me know what exactly is missing. thanks.
There are few problems with your regular expression:
You need to escape dot between "token" and "id" with backslash as it is a special character. See Literal Characters article for more information.
You don't need the quotations marks as your response doesn't contain them (does it?)
So your regular expression needs to be amended as token\.id=(.*) (however I would rather go for something like token\.id=(\w.+)
You can use View Results Tree listener in "RegExp Tester" mode to test your regular expressions directly against response without having to re-run the request.
See Regular Expressions JMeter documentation chapter and How to debug your Apache JMeter script guide for extended information on the above approaches.