I'm new to JMeter and I am trying to extract two values using regular expression extractor. The output below is taken out from my browser developer tool in the Params tab. Any help would be appreciated thanks.
execution: e1s1
lt: LT-834935-bEjV0TiHLqi0T6kQddxklS7GoKgOhO
First of all understand how Correlation in JMeter works..
It is the process of capturing and storing the dynamic response from the server and passing it on to subsequent requests. A response is considered dynamic when it can return different data for each iterating request, occasionally affecting successive requests.
The parameters what you have seen are dynamic , you have to identify from which request's response these values are coming.
Use regular expression extractors to extract dynamic values and pass it on to the subsequent requests.
References :
Jmeter Extraction using Regular Expressions
Related
I have a situation where the request saves the data using PUT method. The dynamic content is webkit(json body). So kindly help me how to capture the value.
Thanks
Roshan
If you want to extract value(s) from the previous response the options are in:
Boundary Extractor - if you provide a JMeter Variable name and empty left and right boundaries - it will store the whole response into that variable
JSON Extractor - allows extraction of partial data using JSONPath query language
JSON JMESPath Extractor - the same as point 2 but uses a different language - JMESPath which is is more "standard" and powerful
More complex extractions/transformations can be done using JSR223 Test Elements and Groovy language
We cannot "kindly help you" more without seeing the previous response and the next request, the only "help" I can provide so far is a piece of information that WebKit is a browser engine so I have a doubt regarding your statement about sending it somewhere.
In jmeter: I’m using two http requests in one thread group, so I’m getting two response from those http requests.
I need ‘member id’ from one response and some string(digest) from other response, in order to create third http request.
I have extracted 'member id' by using this regular expression: {"Id":(.+?)}
which return me correct member id.
Response from 2nd request is string(digest) : "G9V6Su9PESaobcInErdD7Y8OKNo="
I added one more regular expression to extract this string : "(.+?)"
I have added two debug sampler as I'm using two regular expression extractor.
then I pass extracted values 'member id' and string(digest) as a parameter to third http request.
When I run it I'm getting error, my 3rd http request failed.
It's failing to pass extracted 'member ID', but its correctly pass string(digest)
In first debug sampler: its showing correct extracted 'Member ID' but some different values for digest field.
In 2nd debug sampler: its showing correct extracted 'digest' field but some different value for 'Member ID'.
I’m doing it all under one thread group
I'm new to jmeter, I don’t know whether it is possible to extract field from two different response and use as parameter to create new http request.
if it possible how to do it please help me.
Thanks in advance.
I believe that it's due to including quotation marks (and who knows what else) into the "Id" regular expression, you need to surround it with quotes like:
{"Id":"(.+?)"}
Also the better way of working with JSON data is JSON Path Extractor which is available via JMeter Plugins project. See Using the XPath Extractor in JMeter guide (scroll down to "Parsing JSON") for more information on installation, usage, syntax, etc.
I have a series of interconnected pages to test using JMeter. The problem is that the initial page has a Javascript variable in source section which is more of a session variable. This variable is passed in the URL for subsequent pages.
So basically I would like to fetch this javascript variable when I load the initial page from the source section and pass it to next URL(s).
Is there a way I can achieve this using JMeter.
Are you able to see the session variable in the response of initial page?
(in view result tree listener)
If yes, then correlate this value and pass the variable in to next request (use regular expression extractor for fetching the value, still if you are finding some issue in correlating the value than please share the response of first request over here so that I can provide you regx for that)
People mostly Regular Expression Extractor to fetch dynamic values from previous responses, in general the process looks like:
Add Regular Expression Extractor as a child of the request which returns desired data
Use Perl5-style regular expression to match what you're looking for
Provide a template to choose match group - ususally $1$ if you looking for a single value
Provide a reference name to refer the extracted value, i.e. foo
Use extracted value as ${foo} where required
You can visualise JMeter Variables using Debug Sampler and View Results Tree listener combination.
The easiest way to debug your regular expressions is using View Results Tree listener in "RegExp Tester mode"
See How to debug your Apache JMeter script article for more information on troubleshooting your JMeter test.
Can somebody please explain me how can I use JMeter for Feature testing?
I'm able to create multiple HTTP requests within a Testplan. But I need know the way to capture the previous API response and pass one of the response data to the next API request.
Eg:
1.Create Account.
Request- POST: /account
Response: ID: "Value"
Read account
Request- GET: /account/
JMeter is really more of a load testing tool, and best used as such. Capturing data from responses is possible using the Regular Expression Extractor, which can store extracted values in variables for use in a subsequent request. It is a bit of a pain in the ass to use, though.
On your request, add a Regular Expression Extractor:
Field to check: body
Reference name: EXAMPLE
Regular Expression: \[.*\] #your regex here, stuff in square brackets as example
Match No.: 1
In a subsequent request, you can then use the variables defined by the extractor, e.g. ${EXAMPLE_g0} for the entire match, or ${EXAMPLE_g1} for group 1, etc.
As am new to jmeter please help me in passing the value from a webservice response as the input to the next webservice request
I guess that your web service returns XML (more likely) or JSON.
All you need is to use XPath Extractor Post Processor, get interesting response part, store it to variable and use in next request.
You can address variables next ways:
${YOUR_VARIABLE_NAME}
${__V(YOUR_VARIABLE_NAME)}
I prefer the second option as it allows combining several variables, evaluating functions, etc.