How to write condition in apache jmeter request - jmeter

By refering to the image above, I want to write condition in http request like if debitccy5 have null value then this field should not be in the request. If only then have value then only it should be visible in the request. Please suggest how to write this in jmeter.
I tried if controller but didnt worked

I think the only way of achieving this is building the request body in JSR223 PreProcessor using Groovy language.
Take a look at JsonBuilder class.

Related

Jmeter HTTP Request sample and SkipToken

I am using HTTP request sampler for API performance testing. My APIs might return a response containing the skiptoken
If response contains the skiptoken, I need to call the API again using the skip token and capture the performance metrics. I required calling the API until there are no skiptoken available in the response.
Please let me know how I can implement this in JMeter
You can add a Post-Processor, for example JSON Extractor, which will extract the skpitoken into a JMeter Variable from the API response.
If the variable is defined you can add If Controller and send another request to the API with the variable from the previous step.
Something like this:
You have to use any of the Post processor according to your API response content. e.g, Json extractor, Regex extractor, Boundary based extractor, whichever suits well.
Then you need to use While Controller instead of If controller. The While controller it will keep executing the API inside it, until the last skiptoken gets retrieved/ not found - refer the screenshot
If you use If controller - It will execute only once and proceed with other APIs
Since, I don't know the exact response body structure - you can use Regex to fetch the value, something like the below
"#odata.nextLink":"([^ ]+)"

How to add a variable from Json extractor into an array in JMeter?

I'm new here and also a beginner on JMeter and maybe this was already answered in an old post that I didn't find, sorry if this is the case.
I had this Post request I need to send with all these IDs that vary according to the account
Post Request
In order to get all of the IDs, I used the JSon extractor to put then into a variable
JSon extractor, then I got all the FieldIDs that I need.
ID extracted
But now how can I add this variable inside the request? I tried something like {"ids":"${fieldId}","includeBoundary":true} but it didn't work. How can I use this?
Please see: HTTP Request parameter dialog example
If you need to extract the whole response, save it into a JMeter Variable and send it back to another endpoint - the easiest way is using Boundary Extractor providing empty left and right boundaries
If you need more complex transformations - take a look at JSR223 Test Elements and Groovy language
I solved my problem in a so easy way(damn it)!!!!
On the Json extractor I just marked the option "Computer concatenation var (suffix_ALL)" then on the debbuger I got all IDs I needed in only one line and finally on my request I just add on the body data the line {"ids": [${fieldId_ALL}],"includeBoundary":true} and bingo it worked like a charm!!!!

How to get HTTP POST request body in Beanshell Preprocessor?

I am facing some trouble using jmeter. This is my use case, I am using CSV data source parameters to construct a HTTP POST request, the request body is read from a CSV column
which contains some placeholders like ${source_id}
I want to replace these placeholders with jmeter parameters which I am initialising through a regex/json extractor(read from the response of last PUT request). I tried using the jmeter variable name in the CSV file but the variable values are not getting substituted. I guess I will have to use the beanshell pre-processor to modify the HTTP POST request body. Can anyone help with the methods I can use to get the HTTP POST request body.
Something like
String requestBody = sampler.getArguments().getArgument(0).getValue();
should help.
sampler is a shorthand to parent sampler class instance, in your case it will be HTTPSamplerProxy, see the JavaDoc for all available methods and fields.
I would recommend considering migration to JSR223 PreProcessor and Groovy language as it is much faster and less resources consuming than Beanshell. Valid Beanshell code will be valid Groovy code so you should be able to convert to JSR223 elements with no or minimal changes. See Groovy is the New Black article for more details.

How to use JMeter to create a resource with POST, extract Location, and then subsequently update it with PUT

I would like to profile a REST API using JMeter. I would like to write the test plan such that each user thread performs the following actions:
creates a new resource using HTTP POST
If HTTP 201 Created is received, then extract the new resource URL from the Location header of the HTTP response.
Subsequently update the resource using HTTP PUT
Loop in 3 and measure the response time
It's unclear to me how to use JMeter's conditional logic to break up the tests into these discrete parts. I would appreciate any insight anyone can provide on how to implement this.
You need to use If Controller to express this logic.
You can use Regular Expression Extractor to extract Response code (In field to check, check it and extract response code in a Variable)
Use the previously extracted variable in the If Controller condition

Anyway to auto set jmeter assertions to initial responses?

I am building out a test suite in jmeter and want to set the assertions to the initial responses that I get from the api calls. Is there any way to do this besides copy pasta?
For clarity each individual call has its own assertion, which for the moment is the response it is receiving.
I want the assertions to be populated by the responses.
If I understood currectly - you are coming up with some JMeter-Baseline script - you also assume that the response you get now is correct - that is what you expect to get it in future as well , so you want to put the response data in the assertion.
If yes, JMeter will not remember the initial responses. So you need to create your script accordingly.
You can have a beanshell postprocessor to write the the responsedata in a CSV file. Later you modify the script to look for the assertion string from CSV file to compare. This is the statement to get the Response Data.
prev.getResponseDataAsString()
As per How to Use JMeter Assertions in 3 Easy Steps guide, JMeter Assertions have their scope.
If you put an assertion at the same level as all requests it'll apply to all of them. See image below for explanation:
I would use a CSV file with the URL and the assertion string you want to match.

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