How to use regular expression extractor using JMeter - jmeter

I am new to JMeter and need to simulate a scenario of about 200 users logging into the application.
using the recording controller I have recorded the steps
Note: I have replaced the actual website name with myapplication.com
Step 1 (GET): navigates to https://myapplication.com/login
Step 2(GET): There is an auto-redirect to
auth.org.domain.com/idp/saml2/idp/SSOService.php
Step 3 (POST): There is an auto-redirect to
auth.org.domain.com//idp/module.php/core/loginuserpass.php?AuthState=xxxx
Now the response data in Step 2 provides me with the AuthState token in following format in the body of the response
You were redirected to: <a id="redirlink" href="https://org.domain.com/idp/module.php/core/loginuserpass.php?AuthState=_b68bdd977f7cf900eb1b4512b56bc2d0b13dc734e2%3Ahttps%3A%2F%2Fauth.org.domain.com%2Fidp%2Fsaml2%2Fidp%2FSSOService.php%3Fspentityid%3Dhttps%253A%252F%252Forg.domain.com%26cookieTime%3D1481072747">https://org.domain.com/idp/module.php/core/loginuserpass.php?AuthState=_b68bdd977f7cf900eb1b4512b56bc2d0b13dc734e2%3Ahttps%3A%2F%2Fauth.org.domain.com%2Fidp%2Fsaml2%2Fidp%2FSSOService.php%3Fspentityid%3Dhttps%253A%252F%252Forg.domain.com%26cookieTime%3D1481072747
I can see that Auth state is repeated twice. How do I extrate the auth state here which is
"_b68bdd977f7cf900eb1b4512b56bc2d0b13dc734e2%3Ahttps%3A%2F%2Fauth.org.domain.com%2Fidp%2Fsaml2%2Fidp%2FSSOService.php%3Fspentityid%3Dhttps%253A%252F%252Forg.domain.com%26cookieTime%3D1481072747"
Your help is appreciated

Use the following regular expression configuration:
Apply to: Main sample and sub-samples
Field to check: Body
Reference Name: anything meaningful, i.e. authstate
Regular Expression: AuthState=(.+?)"
Template: $1$
Refer the extracted value as ${authstate} where required like
/idp/module.php/core/loginuserpass.php?AuthState=${authstate}
Demo:
References:
JMeter Regular Expressions
Jakarta ORO Regular Expressions Pattern Matching Characters
Using RegEx (Regular Expression Extractor) With JMeter

Related

Is there anyway to pass response of a HTTP sampler to request as another sampler in JMETER

I am testing rest API using Jmeter. In one scenario need to pass complete response of a http sampler to, another http sampler as a request dynamically. Any suggestions how to achieve this in Jmeter.
Add Regular Expression Extractor as a child of the request which response data you want to capture
Configure it as follows:
Name of created variable: anything meaningful, i.e. response
Regular Expression: (?s)(^.*)
Template: $1$
That's it, you should be able to refer the extracted value as ${response} where required.
Explanation of the regular expression:
() - grouping
(?s) - single line modifier
^ - line start
. - wild card character
* - repetition
More information:
JMeter: Regular Expressions
How to Extract Data From Files With JMeter
You can get all response using Regular Expression Extractor with regex accepting all characters
In next JMeter 5.2 version you will able to do it using Boundary Extractor by keeping Left and Right Boundary empty

How to use session id from a previous HTTP request?

I record my script from internet explorer using JMeter version 3.3 but when I run it the first HTTP request created a new session but the next request is nothing changed it is because the session id of the second request is indicated to its path unlike the first request.
So this is my question, How to use session id from the previous request and put it to the path in the second request. Please see the image below
Add Regular Expression Extractor as a child of the first request and configure it as follows:
Reference Name: anything meaningful, i.e. SessionId
Regular Expression: SessionId=([+-]?\d+)
Template: $1$
Replace hard-coded recorded value in 2nd request with ${SessionId}
References:
JMeter: Regular Expressions
Using RegEx (Regular Expression Extractor) with JMeter
Perl 5 Regex Cheat sheet

How to extract session id from response in jmeter?

How can I extract the session id from response?
{"game_url":"https://nogs-gl-stage.nyxmalta.com/game/?nogsgameid=110004&nogsoperatorid=421&sessionid=2007_a87178f4-a398-46f9-b156-a05da5040a37&nogscurrency=EUR&nogslang=en_us&nogsmode=real&accountid=7116&clienttype=html5&lobbyurl=https%3A%2F%2F%2Flobby%2Ffeatured-games",
"non_regulated_game":"NON_REGULATED_GAME_MESSAGE"}
Example configuration would be:
Add Regular Expression Extractor as a child of the request which returns the above response
Configure it as follows:
Reference Name: anything meaningful, u.e. sessionid
Regular Expression: sessionid=(.+?)&
Template: $1$
Refer extracted value as ${sessionid} or ${__V(sessionid)} where required later on
You can also use "RegEx Tester" view of the View Results Tree listener to test your regular expressions without having to re-run the request:
References:
JMeter: Regular Expressions
Using RegEx (Regular Expression Extractor) With JMeter
Perl 5 Regex Cheat sheet

How to Re-use data generated by one Response to other request?

In my application while executing the first request one unique key is generated which key is required for Next all the request. let me how to automate such scenario in Jmeter.
The process should look as follows:
Add Post Processor to the first request
Configure it to extract the required value and store it into a JMeter Variable
Use JMeter Variable from step 2 in your next request.
Depending on response data type you have the following choices:
Regular Expression Extractor - for text
CSS/JQuery Extractor - for HTML
XPath Extractor - for XML and XHTML
JSON Path Extractor - for JSON
It is also possible to extract data from files i.e. if response is in PDF format, but it's a little bit tricky
Example configuration to store the whole response:
Reference Name: any suitable variable name, i.e. response
Regular Expression: (?s)(^.*)
Template: $1$
You can refer the extracted value as ${response} where required. You can also amend the regular expression to extract response part instead of the whole response. JMeter uses Perl5-compatible regular expressions, see Regular Expressions User Manual Chapter for details
You can use regular expression extractor to extract the key from the response of your first request and use the extracted key for subsequent requests. To achieve this:
Right click on the first request and add post processor: Regular Expression Extractor.
Create your regular expression and provide values in other required fields. Please refer to JMeter component reference http://jmeter.apache.org/usermanual/component_reference.html#Regular_Expression_Extractor
Extracted value will be saved in the variable given as reference name
Use this variable in subsequent requests
Here is an example test plan with results.

I need some help in getting a value using regular expression extractor. I am getting no value out

I am new to JMeter and learning, practicing using the Regular expression extractor.
I have created a test plan using the recorder. I have added a regular expression extractor as i want to get the text "Your Account" from my webpage into a variable.
I use the debug sampler to check if my variable has got the value "Your Account" in there.
I am seeing the default value "your_account_NONE" in the variable when i run the test.
I think my regular expression is wrong. Please advise, help. Thanks.
I know I am on the correct page when the test runs because i have inserted a Response Assertion, pattern to test is set to "Your Account"
The assertion passes. If i change to pattern to "Your Accounttttttttttt"
The assertion fails. So I am on the correct page.
I would like to get the value "Your Account" into a variable.
My regular expression has the following config:
Reference Name: YourAccount
Regular Expression: <h1>"Your " <span>Account</span> </h1>
Template: $1$
Match: 1
Default Value: your_account_NONE
My test plan is as follows:
Test Plan
Thread Group
Http Request defaults (Server Name: a URL to go to homepage)
Recording Controller
Http Cache Manager
Http Cookie Manager
Http request (sign in)
http request (Homepage)
Regular Expression Extractor
Response Assertion
The solution to this issue is to use Regular Expression Character Groupings. These are then referenced in the "Template" portion of the regular expression extractor.
Simply encase the part of the match you want in ().
For example:
Regular Expression: <h1>"(Your )" <span>(Account)</span> </h1>
The line above places a character grouping around "Your " and "Account".
Then, to build that into one reference variable you want your "Template" to be this:
$1$$2$
That will concatenate the two character groupings into the variable "YourAccount".

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