I need to extract static content(js, css, png) from the response and trigger dynamic http requests with static content.
Can you please let me know if there is any efficient way to extract and pass it http requests.
For example:
From below tags, Need to extract value from src of tag and store it in list/array and trigger dynamic request based on the number of values.
script asp-add-nonce="true" src="/abc/jquery.js"></script
script asp-add-nonce="true" src="/abc/xyz.min.js?v=skjdfjkdjfdfjlkjlkk"></script
In the above example, we have two values matching the condition, so we need to trigger below two dynamic requests.
If we have 5 tags matching condition, the need to generate and trigger 5 requests in JMeter.
http://appname/abc/jquery.js
http://appname/abc/xyz.min.js?v=skjdfjkdjfdfjlkjlkk
Appreciate if anyone can help on this.
JMeter can automatically parse response and look for images, scripts, styles, fonts, etc.
All you need to do is to tick the relevant box under "Advanced" tab of the HTTP Request sampler
More information: Web Testing with JMeter: How To Properly Handle Embedded Resources in HTML Responses
Alternative option is extracting them using a suitable Post-Processor and run the requests using ForEach Controller if you need sequential requests or Parallel Sampler if you need to send the requests at the same moment.
Related
While doing performance testing via JMETER, I encountered one usecase where the POST request call is taking the dynamic data from the website. So in that case when we run our script it fails as that data is no more available on the website.
Payload looks like given below. It is a POST CALL and the payload is changing everytime.
{"marketId":"U-16662943","price":{"up":98,"down":100,"dec":"1.98"},"side":"HOME","line":0,"selectionids":["W2-1"]}
Could anyone suggest how we can make this payload dynamic when we create a script in JMETER?
I can think of 3 possible options:
Duplicate data is not allowed. If this is the case you can use JMeter Functions like __Random(), __RandomString(), __counter() and so on
The data you're sending needs to be aligned with the data in the application somehow, in this case you can use JDBC PreProcessor in order to build a proper request body basing on the data from the application under test database
The data is present in previous response. In that case it's a matter of simple correlation, the dynamic values should be extracted from the previous response using suitable Post-Processors and variables needs to be sent instead of hard-coded parameters
I am using jmeter to perform load testing of a REST API. I want to feed the response data of this test(which includes duration, size of the response) to another REST API.
Is there any way to do so using the tool?
JMeter's .jtl result files are basically CSV files having header and metrics for each and every Sampler
So you can read this data using CSV Data Set Config and feed to whatever consumer you want.
If you want to choose which values, where and how to store you can consider going for Flexible File Writer plugin
I am running performance test using JMeter 5.0 and then at the end of the test a HTML report is generated. I would like to know if there is anyway to view actual request with the endpoint it served what was the response and ability to view all requests in HTML report. I know JMeter has something called view result tree and it provides most of the information i need but i am not sure how to display result tree or something similar in HTML report.
View results is tree is rather resource intensive listener so you want to use it with caution. Typically you want to filter and display only errors so you can analyse them.
If you would like HTML reports then you can use a modular extension for JMeter. Its default behavior is to read and process samples from CSV files to generate HTML files containing graph views. It can generate the report at end of a load test or on demand.
You can generate the HTML report using menu item Tools → Generate HTML report:
This page explains different configs and options to tweak and tune the report generation.
Hope this helps.
As of current JMeter version 5.2
JMeter can only generate the HTML Reporting Dashboard from the CSV files
The dashboard generator is a modular extension of JMeter. Its default behavior is to read and process samples from CSV files to generate HTML files containing graph views. It can generate the report at end of a load test or on demand.
There is no possibility to store response data in CSV mode:
response_data is currently not supported for CSV output
So there is no easy way to implement your issue unless you use i.e. Flexible File Writer to store request/response data into a separate file and modify report-template (you will need to learn FreeMarker) to display the information you need.
use this command, -g .jtl file -o reportlocationpath, you will get nicely generated html report along lots of graphs as shown below:
I would like to know if there is anyway to view actual request with
the endpoint it served
My guess is that you already have all the metrics required for each request but would like to see individual request payload and the response. Just in case this guess is wrong, since you already have the report and are still not able to see the individual requests, I am assuming that you have checked on "Generate Parent Sample" across each Transaction Controller. Uncheck that and you should be able to see individual request level response time, 90th percentile etc. Of course you will have to re-run the test to get these individual request level values
However, if you want to literally see the request payload and response in HTML report, there is no way we can do that. Only View Results Tree can do that for you within the scope of JMeter's GUI and not outside of this.
what was the response
As mentioned above, as of today, there is no possibility to see the response of individual requests along with their payload in the HTML report and this is for a good reason. We do not require the requests/responses while we run a load test in our HTML report. It is necessary for debugging and until the script is ready for execution. But post that, we wouldn't require the responses. If you still want to ensure that the correct responses are received, you can always add assertions (although best practice is not to add too many assertions in a load test)
Just an example of why HTML report across any load testing tool will not show responses of a request -
Assume there is a load test of 10K users for 10 iterations and the Thread Group has around 10 transactions each having an average of 7 requests, there is going to be 7 million responses to go through. Having this in a HTML report is not just tedious but literally doesn't make sense.
I know JMeter has something called view result tree and it provides
most of the information i need
The View Results Tree is the holy grail for debugging and for ensuring if requests and response are appropriate during script creation stage.
I think your primary concern is to ensure the correctness of the responses rather than get the whole response of each request. In that case, as I had mentioned above, you can always use assertions. Several other custom alternatives include capturing specific parts of response and writing them to a file or something like that by leveraging JSR223 sampler or using the if controller to validate. Of course this is going to add some overhead on JMeter depending on the type of test and script that you are going to execute
but i am not sure how to display result tree or something similar in
HTML report
But if you still insist on having something in HTML and if I have failed to convince as to why this is something that one must not pursue, you can capture the entire response of each request in a variable through Regex Extractor and write them to a file with HTML tags in it. However, you will have to implement logic to collate responses and organize them for your need.
One more way would be to have the JTL save all data and modify this up in some text editor and beautify it with HTML
FYI on JTL and its configuration
Hope this helps!
I need to simulate a test scenario where my application sends a request with 100s of queries. On the back-end, this request is broken down into requests containing a single query each. So a request from Jmeter with 100 queries will become 100 requests on the back-end. Now - the response from the back-end could either contain the requested data for each of those queries OR contain a unique queryID. Sending back a queryID is server's way of telling that this query is still running. For example, if Jmeter sends a request with 100 queries, it might get back data for 80 and 20 unique queryIDs. So my application under test makes a callback request with those 20 queryIDs every 15 seconds until it gets back the requested data or timeout.
Here is what I have implemented so far.
-main_request_with_100_queries
--XPath_extractor_to_extract_any_queryIDs_found
-if_controller_to_check_if_queryID_MatchNr_is_greater_than_0
--15_second_pause
--beanshell_preprocessor_to_create_the_request_body_with_all_queryIDs
--callback_request_with_queryIDs
What I want to implement is to have another XPath extractor for my callback_request and if any queryIDs are found, then go back to the if_controller
I'm trying to make this work by using a module_controller but so far no luck. Has anyone ever implemented something like this? Can anyone suggest some ideas?
You can use While Controller to keep making the request until there is a queryID in the response.
While Controller [ "${querid.present}"=="true" ]
HTTP Request
Pre Processor [to_create_the_request_body_with_all_queryIDs]
Post Processor [to check for query ID. if no query id - change querid.present to false ]
If possible, try to use Regular Expression Extractor. xpath is very slow and might affect your performance of the script. Check here for more details.
Creating modular test script in JMeter.
I am using Jmeter to test a web page. Obviously it has css, images, js etc. How can I group the response times by css,js and images so that I can clearly see the response time broken by resource types.
You pose an interesting question. The listeners in JMeter show what's at the sibling/child level. Therefore, instinctively, if you want just one type of resource in a given report, you'd need to put all the requests in a single controller and give that controller a listener.
You can get around restructuring your test by renaming your samples in a consistent manner. Something like: "CSS - actual request name".
Then, using Aggregate Report, you can copy the results into a spreadsheet, sort by name, and get your metrics that way.
I think you can use parallel controller to group the type of static files, ajax, etc. And use a transaction controller to group the page you would like to request, under the transaction controller you can add the parallel controller as hierarchy.