So, I have an XML file that needs to be sent to a server via the POST request. Everything works, however, here is an issue. This XML file has a transaction ID that needs to be incremented every time when it's being sent to a server. When I create multiple threads(requests) and send them over to the server, only one request gets processed, and everything else gets declined because they all have the same transaction ID. I was wondering if there is a way to increment a transaction ID inside the XML file with every generated thread?
Just use __counter function call where you have currently the transaction id:
${__counter(FALSE)}
It depends on how you're sending the file.
If you're doing it via Body Data tab of the HTTP Request sampler using __FileToString() function just replace the transaction ID with __threadNum() function in the file itself and wrap everything into __eval() function like:
${__eval(${__FileToString(/path/to/your/file.xml,,)})}
more information: Here’s What to Do to Combine Multiple JMeter Variables
If you're sending the file via "Files upload" tab the only way is to read the file using JSR223 PreProcessor, change the value and write it back in the runtime, see Processing XML article for more details.
Related
Please guide me whether is there any way to get the response data from jmeter to robotframework? I have integrated robotframework with jmeter and my use case is to do the data base validation using robotframework for that i want to get the unique id which i recieved in jmeter responce data.Due to some use case i cannot perform Database validation in jmeter itself.
I Dont see any keyword in the documentation,
https://kowalpy.github.io/Robot-Framework-JMeter-Library/JMeterLib.html
I don't think the plugin offers such functionality so the most straightforward way is writing your unique id into a file, depending on how you're getting the ID you can:
Use Save Responses to a file listener - it stores the whole response into a separate file
Use Sample Variables property - it adds specified JMeter Variable(s) values as a separate column(s) in the .jtl results file
Use Flexible File Writer listener where you have the full freedom to choose regarding what, where and how to store
Once done you can read the file using OperatingSystem library and do whatever you need with this ID
For the purpose of my test, i need to test the same endpoint is capable of using both GET/POST http method. What is the easiest way, how i can do it without creating duplicates of the script?
You can normally parameterize the HTTP request method by creating a simple CSV file with the following contents:
method
GET
POST
once done you can add a CSV Data Set Config element and set it up like:
and in your HTTP Request sampler just use ${method} JMeter Variable
That's it, you can now run your request and it will hit the endpoint twice using different methods:
I have used AMQP Publisher to publish the message in RabbitMQ then I use AMQP Consumer as listener. In the View Results Tree the messages from the queue in shown in the request tab of AMQP Consumer. My question is how to extract data from that request. I tried following the Bean Shell Post Processor but it seems it will only work on Http request. I tried to use JSR223 Post Processor and XPath extractor but it doesn't work as well. Any help?
I wanted to extract the documentId from the request. Here is the Request pattern.
I have already tried following links:
Extracting value from jmeter post request
how to extract value from request in Jmeter
How to extract the values from request input xml in jmeter
The statement that you tried something without sharing the code doesn't make sense
Posting JSON data or code as image is not the best idea
Any reason to extract data from the request? Normally people know everything about the request hence don't require to extract anything from it. Even if they do - they should normally able to store the request data into a JMeter Variable and apply the relevant Post-Processor to it.
Whatever, just in case here is the solution:
Add JSR223 PostProcessor (if you really want to do this using the Post-Processor) as a child of the request
Put the following code into "Script" area:
vars.put('foo', com.jayway.jsonpath.JsonPath.read(sampler.getArguments().getArgument(0).value,'$..documentId')[0])
That's it, you should be able to access the extracted value as ${foo} where required.
References:
JsonPath: Getting Started
Apache Groovy - Why and How You Should Use It
I have a requirement to download zip file from server through JMeter to test the peroformance but for me the downloaded files are shown in x-filler, i need to have the zip file downladed.
Please help me here
Thanks in Advance
Simulating file download event using JMeter is as simple as sending HTTP GET request using HTTP Request sampler.
If you need to save the response somewhere for later reuse or analysis add Save Response to a file listener as a child of the request which performs the download. Check out Performance Testing: Upload and Download Scenarios with Apache JMeter article for comprehensive explanation.
Be aware that storing responses will cause huge disk IO overhead during the load test so I would recommend ticking Save response as MD5 hash box under "Advanced" tab of the HTTP Request sampler and use MD5Hex Assertion to compare the MD5 checksum of the response with some reference value.
To download any file, you need to extract it using Regular Expression Extractor.
Add the Regular Express Extractor to the request where you want to download and configure the fields as shown below. Use (?s)(^.*) as the expression to extract everything.
Add the Save Responses to a File sampler and configure the fields as shown below.
Execute the test plan. In the JMETER_HOME\bin\, you can see the zip file. Extract the zip file and validate.
The easiest way is to use your own code to download the file. The options are BeanShell Postprocessor or JSR223 Postprocesor.
I extracted file name from response header Content-Disposition, save it to varible, and the use variable for filename. Additional variable was defined on Test level, holding folder name where to save files.
I'm testing an Eclipse-RAP application with JMeter.
In RAP the client (javascript-framework in the browser) communicates with the server over a json-based protocol.
A message looks like this:
{"head":{"requestCounter":3,"uiSessionId":"832834"},"operations":[["set","w1",{"bounds": [0,0,1680,893],"cursorLocation":[1262,-1]}]]}
As you see there is a session-ID stored in uiSessionId. I extracted this id using a "Regular Expression Extractor" and stored it in a variable namedUI_SESSION_ID`.
Then i edited the raw "Post Body" of the recorded HTTP-Request:
{"head":{"requestCounter":3,"uiSessionId":"${UI_SESSION_ID}"},"operations":[["set","w1",{"bounds": [0,0,1680,893],"cursorLocation":[1262,-1]}]]}
and it works.
But i have to alter each Post-Body of each HTTP-Request which can be a lot.
After some research i thought using a "BeanShell PreProcessor" would be the right thing, but:
var sampler = ctx.getCurrentSampler();
would give me a HTTPSampler and i did not find any method which allows me to retrieve the post-body, replace the session-id with the variable and set the altered post-body.
JavaDoc: http://jmeter.apache.org/api/org/apache/jmeter/protocol/http/sampler/HTTPSampler.html
Do you know any way i can replace the uiSessionId with the variable without changing every request manually?
You don't have to. The uiSessionId header has been introduced in a milestone version in preparation for multiple browser-tab support in RAP, but it has been replaced by another mechanism that does not use this header parameter anymore.
As of RAP 2.1 RC1, the client now attaches a “connection id” to every POST request in a URL parameter cid. This parameter does not affect load tests, and you don't have to remove it from your recording. Since every jmeter thread gets its own HttpSession, it's not a problem that all threads have the same cid.
One reason for this change was the ability to load test RAP applications without the kind of problems that you've been struggling with.