When I execute the script with Loop count = 2
The sampler's names in the first loop will be displayed correctly in the "View Result Tree".
But the names for the same sampler's in the second loop will be empty/blank in the "View Result Tree", please check the screenshot below.
Your question doesn't provide sufficient level of details in order to be troubleshooted/reproduced.
If you're generating your sampler labels dynamically using JMeter Functions or Variables (like I did in the above demo) - double check their values at every step using Debug Sampler and View Results Tree listener combination, it might be the case they're getting overwritten/emptied somewhere somehow
Inspect jmeter.log file for any suspicious entries, if something goes wrong most probably you will be able to figure out the root cause or get the idea from there
I faced with same issue. The cause of the error is when the name is changed in HTTP Header Manager plugins, sampler names start to come undefined. This is a bug of JMeter.
The solution is very simple. If the default value:
HTTP Header Manager
is assigned to all HTTP Header Manager plugins in Jmx, it will be resolved.
This is in addition to the question already asked:
Please refer the image displayed on clicking the link : https://i.stack.imgur.com/O0lSD.png
Questions:
Is it possible to extract the highlighted values - Blazor ID and Timestamp in JMeter even when the response fails? (Since these values are unique, dynamic and change for each session - it fails on rerunning them)
Is it possible to create/record > amend > run JMeter scripts when we have such dynamic and unique values involved?
I have tried to capture the Blazor ID through Regular Expressions.
But JMeter is not able to capture it from URL (Tried it with all options in JMeter - URL, Body, Headers, Response etc).
Is this because the request is failing? Please have a look at the SS and let me know if anything has to be corrected from my end.
https://i.stack.imgur.com/jK1SF.png
https://i.stack.imgur.com/B2ZNm.png
I guess the Regex Expression need to be change,
for id use id=([^&]*)
and for time use &_=([^&]*)
When i perform the action on UI a dynamic refid is appended to the URL using query string parameter. I can't find that refid in the response but its part of the request. In the code i only found the variable.
Here is the URL on UI.
https://XXXXXX.XXXXXXXXXXXX.com/Recruiter/#!/candidate/new/157072048
I captured the Get request for the same action using the developer tool on Chrome and it looks like this.
Request URL: https://XXXXXX.XXXXXXXXXXXX.com/Pages/candidate/new.aspx?refid=157072048&mode=quick
This Get request has 2 query string parameter.
refid: 157072048
mode: quick
Now i need to captured that refid and pass it the step 2 to be able to create that record. I need help to figure this out.
I found comment in the html that may be help full.
// referenceid - only used with the "Web" app, gets mapped to "&refid=123" in the query string, and ends up as Page.ReferenceID in WebForms.
If this is not a part of a response data then it might be the case it's generated on the client by JavaScript code. You need to figure out how the value is being generated and replicate the same code using JSR223 Test Elements and Groovy language.
Another possibility is that the value comes from an Ajax request which JMeter doesn't execute because it cannot execute client-side JavaScript. In this case you need to simulate the same request and extract the value from there.
And last but not the least, the number you're looking for may reside in one of the sub-samples which may appear as the result of Redirection and you're trying to find it in main sampler response:
There is a URL which I want to hit and save the response. The URL id needs to be incremented each time and save the response. For example -
First Get Request - http://google.com/getdata/?Id=1
First Response - one
Second Request - http://google.com/getdata/?Id=2
Second Response - two
and so on...
I want to hit the request with increment the id each time and save the response
I have tried using fiddler but unable to figure how to increment the id and save the response.
P.S. - I have to make around 6,00,000 hits
Since the 'Postman' tag is mentioned, I can help you regarding how to implement this in Postman.
Postman has a nice feature of using 'variables'.
You can use environment variables or globals.
Read more about these on their docs:
https://www.getpostman.com/docs/v6/postman/environments_and_globals/variables
You can use a global variable such as 'counter' and set it to 1 / whatever starting point you want.
Then you can modify your request like so :
http://google.com/getdata/?Id={{iteration}}
Now, in the Tests script of the request you can write the following script
let i = parseInt(pm.globals.get('iteration')) + 1;
pm.globals.set('iteration', i);
Also, to access the response you can use the following command in Test script:
console.log(pm.response); // Use pm.response as per your needs
Save the request in a collection.
Now load the Postman's Runner and select the collection.
Now you can put an iteration count of 6,00,000 and hit run!
Remember, heavy iterations will cause performance degradation.
In JMeter you need to click , Ctrl+0 and Ctrl+1 to create , Thread Group and HTTP Request
In Thread Group put the number of hits you need in Number of Threads (users)
In HTTP Request Put in Server Name or IP www.google.com and in Path /getdata/?Id=${__threadNum}
__threadNum will create increasing number from thread 1 to number of hits.
For small number of hits or debugging you can add View Results Tree to view request/response by clicking Ctrl+9 in Test Plan/Thread Group level.
To save the response use Post Processor, especially by adding Regular Expression Extractor below HTTP Request by clicking Ctrl+2.
Allows the user to extract values from a server response using a Perl-type regular expression. As a post-processor, this element will execute after each Sample request in its scope, applying the regular expression, extracting the requested values, generate the template string, and store the result into the given variable name.
Import to notice that for load testing you need to work with non GUI mode, which means call jmeter using command line as jmeter -n -t myTest.jmx
you will use Command-line mode (called Non-GUI mode) to run it for the Load Test.
Don't run load test using GUI mode !
For saving all responses to a one file see save response data or if you want to save file per thread/user you can add Save Responses to a file
Fiddler:
Open script editor (Control + r ) then add the following code inside OnBeforeResponse
static function OnBeforeResponse(oSession: Session) {
if(oSession.oRequest["X-SAVE-ME"] != "")
{
oSession.SaveResponseBody("C:\\tempfiddler\\" + oSession.SuggestedFilename);
}
}
Go to the "Composer" tab and include the header X-SAVE-ME with any value, in the URL, replace your ID with # (just like this: http://google.com/getdata/?Id=#) fiddler will now ask for the starting and ending value of ID before executing;
Please find the snapshot below for your scenario.
Scenario_Testplan
First, go to user properties and put "sample_variables = ID, Response_File_Name" or whatever the name you choose for the variables. Restart jmeter.
Create the below plan:-
CSV data set config to have incremental values and response file name
HTTP request will use ${ID}
Save response to a file will use ${Response_File_Name}
Hope this will help.
I would do this by command line, using a while loop with a curl to the URL, storing the body result on the standard output to a file. It would look something like this:
for i in {1..600000}; do curl "http://google.com/getdata/?id=$i" > body-result-id-$i; done
I couldn't test the line above because I don't have any access to a console right now, but I think it should work.
In Burp you can do this using the Intruder tool. First, capture a sample request in Burp. If you're unsure how to do this, please consult the getting started documentation.
Then right-click the request and selected "Send to Intruder".
In the Positions tab within Intruder, first click "Clear" then select the section you want to vary, and click "Add"
In the Payloads tab select the Payload type as "Numbers" and configure the range.
Click "Start attack"
For more information, consult the documentation.
One Another solution is that you can use Counter in jmeter. That you can find from below path
Thread Group > configElement > Counter.
Configure the Counter as per your need.
Give the Reference Name i for counter.
Use the variable in your request
For more information.
I am performing load testing on an API using JMeter. For that, I call an oauth link, which returns a code in the headers which I use for further testing. But the link redirects to another link and I am unable to capture the value of the response headers when a response with status code 302 is returned. How can I do that.
If your situation is like this one:
You can still extract the dynamic value from the latter sample result by modifying Regular Expression Extractor scope
As per documentation:
Apply to:
This is for use with samplers that can generate sub-samples, e.g. HTTP Sampler with embedded resources, Mail Reader or samples generated by the Transaction Controller.
Main sample only - only applies to the main sample
Sub-samples only - only applies to the sub-samples
Main sample and sub-samples - applies to both.
JMeter Variable - assertion is to be applied to the contents of the named variable
By default Regular Expression Extractor is looking into Main sample only, in the above example it is HTTP Request, if the data you're looking for is stored in one of the sub-samples it is enough to change Regular Expression Extractor's scope to look into sub-results as well:
You have 2 options:
Do not allow HTTP request to redirect. Simply uncheck "Follow Redirects" checkbox in the HTTP Sampler:
That way you can process this request normally. The drawback is of course that you need to add a second request which will take you to a link to which you are normally redirected automatically.
Most post-processors allow you to extract value from either main sample, or sub-samples, or both. So follow redirect as before, but change Post-Processor to extract value from sub-sample. For example Regular Expression Extractor: