If we are having dynamic left and right boundary in response, then how to correlate them in Jmeter?
I found few useful article to correlate in Loadrunner, by using text flag in web_reg_save_param like "/DIG", "/BIN", "/ALNUM", "/IG". Or we can do that using web_reg_save_param_regexp.
In Jmeter you use the relevant Regular expression in Regular Expression Extractor added as a post processor of the request.
for example for LoadRunner correlation:
Source: “GraphA123567EndGraphA”
Solution:
web_reg_save_param_regexp(“ParamName=CorrValue”,
“RegExp=\“Graph[A-Za-z]\”, \“([0-9]+)\”, \“EndGraph[A-Za-z]\””, LAST);
Result: 123567
You will use Regular Expression:
Graph([A-Za-z]+)(\d+)EndGraph([A-Za-z]+)
with Template: $2$ to get relevant group and in Jmeter ParamName is Reference Name
JMeter doesn't operate "boundaries", the most popular Post Processor is Regular Expression Extractor which can handle both static or dynamic "boundaries" which you can set using Perl5-style regular expressions.
For example if you want to extract numeric value between foo and bar the relevant JMeter regular expression would be foo(\d+)bar
If you are looking for a mix of numbers and letters you can use foo(\w+)bar
The same approach you can follow if your response data is like foo1_A_VERY_INTERESTING_STRING_bar2 where 1 and 2 are dynamic:
More information:
JMeter: Regular Expressions
Using RegEx (Regular Expression Extractor) with JMeter
Perl 5 Regex Cheat sheet
Related
In Jmeter, run one API and get the below response. I want to extract File_Name & ReqId value from the below response using Regular Expression Extractor using only one "Regular Expression Extractor" . and pass these two values to another API, so how do that?
{"FileCode":["Aadhar"],"File_Name":"271954143_1_1.jpg","Aadhar_Features":[{"Confidence":"79.46","File_Code":"UIA","Count":1},{"Confidence":"87.87","File_Code":"GOI","Count":1},{"Confidence":"88.25","File_Code":"Aadhar_Slogan","Count":1},{"Confidence":"92.36","File_Code":"SatyamevaJayateLogo","Count":1},{"Confidence":"92.99","File_Code":"AadharLogo","Count":1},{"Confidence":"97.01","File_Code":"Aadhar","Count":2}],"ReqId":"REQ_1639032634869","Classes":[{"Confidence":[96.21741771697998,98.64940047264099],"Coordinates":["383,269,110.0,27","375,882,105.33333333333333,28"],"Count":2,"Name":"AadharNo"}]}
Here some wise man suggested using JSON JMESPath Extractor as it's faster, easier and more reliable.
If despite this you prefer using Regular Expression Extractor - here is the regular expression for the File_Name:
"File_Name"\s*:\s*"(.+?)"
and here is the one for the ReqId
Example Regular Expression Extractor configuration:
Example JMeter Variable usage:
More information:
Apache JMeter: Regular Expressions
Using RegEx (Regular Expression Extractor) with JMeter
I have a problem with extracting a value in an html response with jmeter, what regular expression should I use to be able to extract myself: client_id% 3D27d15a22-4f44-469a-8480-f3d19825e8e8 ?, without client_id% 3D
thank you in advance
If you want to fetch a GUID-like structure from the response the relevant regular expression would be something like:
([A-Fa-f0-9]{8}[\-][A-Fa-f0-9]{4}[\-][A-Fa-f0-9]{4}[\-][A-Fa-f0-9]{4}[\-]([A-Fa-f0-9]){12})
Demo:
More information:
JMeter: Regular Expressions
Using RegEx (Regular Expression Extractor) with JMeter
Perl 5 Regex Cheat sheet
How to validate GUID (Globally Unique Identifier) using Regular Expression
I have a response which have multiple values which need to pass in the next request. How can I right a single regular expression to capture that values and pass those to next request.
<id>583839</id>
<Clientno>543</Clientno>
If you configure the Regular Expression Extractor as follows:
textual representation of the settings:
Variable: DATA
Regular Expression: (?s)<id>(\d+)</id>.*<Clientno>(\d+)</Clientno>
Template: $1$$2$
You will be able to access the extracted values as:
${DATA_g1} - for 583839
${DATA_g2} - for 543
More information:
Using RegEx (Regular Expression Extractor) with JMeter
Apache JMeter - Regular Expressions
Perl 5 Regex Cheat sheet
This is simple. You can use a regular expression extractor for this.
Just add 2 regular expression extractor config elements to the sampler from which you would want to extract data. Specify the below expressions in them and specify a relevant variable name. The template should be $1$ in both elements.
<id>(.+?)</id>
<Clientno>(.+?)</Clientno>
The above will provide you variables with the data you need.
Regular Expression -"p_instance" value="(.*?)"
Match count: 1
Match[1][0]="p_instance" value="11917272245034"
Match[1][1]=11917272245034
When added $1$ in template - error is displayed(request is not created)
$1$$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.
I have a link in my Request -
example.com/people/3176972
and my regular expression extractor is-
Regular expression: example.com/people/(.+?)
Template: $1$
Match no: 1
but it is only extracting only 3. I want to extract 3176972 number.
What am I doing wrong?
If you want to retrieve anything after the last slash, then just remove question mark from your expression:
example.com/people/(.+)
(question mark tells it to be non-greedy, hence it's taking 1 character).
If the last portion is always numeric, use
example.com/people/([0-9]+)
You should try this regular expression:
[0-9]+
Amend your regular expression to look like example.com/people/(.*) or example.com/people/(\d+) as your regex stops after first match.
See Regular Expressions chapter of JMeter's User Manual for more information on JMeter Regular Expressions.
Convenient way of testing regular expressions is using "RegExp Tester" mode of the View Results Tree listener.
Check out How to debug your Apache JMeter script guide for more information on different debugging techniques for JMeter tests.