I plan to add digest header to my "HTTP Header Manager" in JMeter.
I plan to use __digest function referenced in https://jmeter.apache.org/usermanual/functions.html.
An example is:
${__digest(MD5,${message-body},,,)}
How should I reference the messege body according to RFC3230?
You can use __groovy() function instead of the ${message-body} variable and retrieve the request body dynamically in the runtime.
The Groovy syntax to get the current request body:
${__groovy(ctx.getCurrentSampler().getArguments().getArgument(0).getValue(),)}
Put together with the __digest() function:
${__digest(MD5,${__groovy(ctx.getCurrentSampler().getArguments().getArgument(0).getValue(),)},,,)}
Demo:
In the above example:
ctx stands for JMeterContext
ctx.getCurrentSampler() resolves into HTTPSamplerProxy
See the JavaDoc for all available functions and Top 8 JMeter Java Classes You Should Be Using with Groovy article for more information on various JMeter API shortcuts available for JSR223 Test Elements
Related
I know we can send/initialise the post data parameter variables from preprocessor but my requirement is i want to send complete post data/pay load which is shown in my screenshot from jsr223 preprocessor.
You have sampler shorthand which stands for HTTPSamplerProxy in the JSR223 PreProcessor
There is HTTPArgument class where you can specify name, value and whether they're encoded already or JMeter should perform the URL-encoding itself
So for each parameter you want to pass you need to add the line like:
sampler.getArguments().addArgument(new org.apache.jmeter.protocol.http.util.HTTPArgument('parameter_name', 'parameter_value', false))
More information: Top 8 JMeter Java Classes You Should Be Using with Groovy
I have a HTTP request sampler configured. In the request body, I call out to a beanshell function I wrote:
${__BeanShell(createHeader("GET"\,"Customer"\,"${__UUID}"\,"${__time(yyyy-MM-dd'T'hh:mm:ss)}"))}
The function just builds some request strings with the passed-in parameters. I want to remove the jmeter function calls (__UUID and __time), and call them directly from within the beanshell function. I could not find a way to do that.
Thanks
Don't inline JMeter Functions or Variables into scripts, in your case you will have to go for code-based equivalents instead, to wit:
__UUID() -> UUID.randomUUID().toString()
__time() -> new java.text.SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss").format(new Date())
Since JMeter 3.1 it's recommended to use JSR223 Test Elements and Groovy language for scripting, in your case it would be __groovy() function. If you want to re-use createHeader method - you can put it into a separate .groovy file and define groovy.utilities property pointing to this file.
See Apache Groovy - Why and How You Should Use It article for more information on using Groovy scripting in JMeter tests.
I'm new to JMeter BeanShell PreProcessor function.
For a test I'm trying to print sample URL address.
From the tutorial I have the follownig code:
org.apache.jmeter.samplers.SampleResult;
String currentURL = SampleResult.getUrlAsString();
print(currentURL)
But I get error "Attempt to resolve method: getUrlAsString() on undefined variable", how to define this variable first?
This means the SampleResult does not exist.
You need to use prev as per this doc:
http://jmeter.apache.org/usermanual/component_reference.html#BeanShell_PreProcessor
Which references this javadoc:
http://jmeter.apache.org/api/org/apache/jmeter/samplers/SampleResult.html#getUrlAsString--
Be aware that since JMeter 3.1 it is recommended to use JSR223 Test Elements and Groovy language for any form of scripting in JMeter tests. So consider migrating to Groovy as soon as possible.
If you are using a PreProcessor it means that you don't have any SampleResult as sampler has not been yet executed. So you need to use sampler shorthand which is resolved into HTTPSamplerProxy like:
sampler.getUrl() as String
Demo:
More information: Apache Groovy - Why and How You Should Use It
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.
I saved the whole XML in a DB table and am fetching the XML in JDBC sampler and using it in HTTP sampler. I want to parameterize a value inside a particular tag value inside this fetched xml at runtime. Could someone tell me how to do that. Thanks in advance
In http sampler ==> post body
xmldoc = ${xmlfromdb}
Here am able to fetch the whole XML and I can submit it successfully. How to parameterize a tag value inside this fetched xml at runtime.
You can do it via scripting like:
Add Beanshell PreProcessor as a child of the HTTP Request sampler
Put the following code into the PreProcessor's "Script" area
String body = sampler.getArguments().getArgument(0).getValue();
body = body.replace("Original Tag Value", "New Tag Value");
sampler.getArguments().removeArgument(0);
sampler.addNonEncodedArgument("", body, "");
sampler is a pre-defined variable available for Beanshell (and some other Test Elements) which stands for parent Sampler instance and in case of HTTP Request it's HTTPSamplerProxy. See JavaDoc for more information on available methods and fields and How to Use BeanShell: JMeter's Favorite Built-in Component article for more information on using JMeter and Java API from Beanshell test elements inside JMeter script.