I am new to JMeter, I want to retrieve from the request sample (it is on websocket-request-response-sampler).
The request body:
ws://localhost:8080/connect
{
"uid": "JBM1",
"agent_name": "performance_test_1"
}
I want to retrieve the agent name. Tried with normal JSSR223 post processer, not working. Any help ?
If you're tried with "normal" JSR223 Post Processor you're supposed to share your "normal" code you used and the "normal" jmeter.log file contents
I believe "normal" code should normally look like:
new groovy.json.JsonSlurper().parseText(sampler.getPropertyAsString('requestData'))[0].get('agent_name')
Demo:
More information on Groovy scripting in JMeter: Apache Groovy - Why and How You Should Use It
I have not done anything extra then #Dmitri rather few modifications, but please try it.
def requestBody = sampler.getPropertyAsString('requestData');
def jsonFormat = new groovy.json.JsonSlurper().parseText(requestBody)
def key = 'agent_name'
def agentName= jsonFormat."$key"
log.info("AgentName"+ agentName)
vars.put('AgentNameFurther',agentName)
Related
I'm trying to solve a test data issue in Jmeter. Can anyone of you have a look at below problem statement and advise here please ?
Requirement: Need to send all entries in a CSV file to HTTP request body in 'one' request to the end point.
Example CSV File:
"adsfas123wsf00000wqefqwe52145t10000",
"fdfrgvergq120947r0000dwsfqwaef237sadf",
"wfrqwef7865034r78tkahsefjh6985r7asfdaf",
"qefqwe52145t10000adsfas123wsf00000w",
"wsfqwaef237sadffdfrgvergq120947r0000d"
HTTP Request Body:
["${data}"}]
When the data is substituted, I should be able to get below output.
[
"adsfas123wsf00000wqefqwe52145t10000",
"fdfrgvergq120947r0000dwsfqwaef237sadf",
"wfrqwef7865034r78tkahsefjh6985r7asfdaf",
"qefqwe52145t10000adsfas123wsf00000w",
"wsfqwaef237sadffdfrgvergq120947r0000d"
]
Problem Statement: When I use CSV data set config. file, I'm unable to concatenate all entries into one single request body. My understanding is, CSV data set config. the file is not the right option here.
Did some search in StackOverflow and followed a method to achieve above using JSR223 PreProcessor' and the link is, How to send multiple json body using jmeter?.
Followed the above link and tried added below custom code provided.
def builder = new StringBuilder()
new File('/path/to/plans.csv').readLines().each { line ->
builder.append(new File(line).text).append(System.getProperty('line.separator'))
}
sampler.getArguments().removeAllArguments()
sampler.addNonEncodedArgument('', builder.toString(), '')
sampler.setPostBodyRaw(true)
Upon running, I get below error message,
Caused by: java.io.FileNotFoundException,
"adsfas123wsf00000wqefqwe52145t10000",
"fdfrgvergq120947r0000dwsfqwaef237sadf",
"wfrqwef7865034r78tkahsefjh6985r7asfdaf",
"qefqwe52145t10000adsfas123wsf00000w",
"wsfqwaef237sadffdfrgvergq120947r0000d" (The filename, directory name, or volume label syntax is incorrect)
If the file is not found, then how come the entries are read and displayed in the log viewer?
Also, how do I link the output of custom code to the request body? Or is it taken care of by the custom code itself?
You have an error in your code, change this line:
builder.append(new File(line).text).append(System.getProperty('line.separator'))
to this one:
builder.append(line).append(System.getProperty('line.separator'))
If you want to send the full contents of the file you don't even need to go for scripting, you can use __FileToString() function right in the "Body data" tab of the HTTP Request sampler:
${__FileToString(/path/to/plans.csv,,)}
And last but not the least if you need to generate JSON from the plain text it might be a better idea to go for JsonBuilder class, see Apache Groovy - Why and How You Should Use It and Apache Groovy - Parsing and producing JSON
Two steps:
Add a User Parameter Pre-processor before the HTTP request:
Name: DATA
User_1: ${__FileToString(/path/to/plans.csv,,)}
Add the following to request body:
${DATA}
I am currently working in a heavy load test, I have one login request which access with user and password and basic auth, I have to validate some info from the response and I am using assertions but I need to apply different kind of assert depending on the code response and to be able to do that I am using an if control putting the assertions inside as a child, the problem begins when I try to execute the assertions with an error code response, some how the if controller is not taking the value of the variable I created to store the code response. could some one help me? thanks!
You cannot put assertion as a direct child of the If Controller. In fact you can, however it will not make any sense as assertions obey JMeter Scoping Rules and since there is no any Sampler in the Assertion scope - it will simply not get executed.
I would recommend going for JSR223 Assertion where you have all power of Groovy SDK and JMeter API in order to set up your custom pass/fail criteria. The pseudo code would be something like:
if (SampleResult.getResponseCode().equals('200')) {
//do what you need when response code is 200
//for example let's check if response contains "foo" line
if (!SampleResult.getResponseDataAsString().contains('foo')) {
AssertionResult.setFailure(true)
AssertionResult.setFailureMessage('Failed to find "foo" line in the response')
}
}
else if (SampleResult.getResponseCode().equals('300')) {
//do what you need when response code is 300
}
else if (SampleResult.getResponseCode().equals('400')){
//do what you need when response code is 400
}
else {
AssertionResult.setFailure(true)
AssertionResult.setFailureMessage('Unexpected response code: ' + SampleResult.getResponseCode())
}
References:
SampleResult documentation
AssertionResult documentation
Scripting JMeter Assertions in Groovy - A Tutorial
I have test case in my csv file. The request URL has a custom variable.
Sample URL : .../abc/$id
I need to replace this id by the id that we get in response from the previous request. I used json extractor to fetch the id from the response. Now I need to update this id in the next test case request. Fetched the Request URL from jmeter context using below code:
String path = ctx.getCurrentSampler().toString();
path.replaceAll("$id", id);
I am not able to set this updated URL in jmeter context (ctx)
You need to assign new path value to path variable
You need to set sampler path to the new value using sampler.setPath() method
So you need to amend your code like:
String path = ctx.getCurrentSampler().toString();
path = path.replaceAll("$id", id);
sampler.setPath(path);
Demo:
Also consider switching to JSR223 PreProcessor and Groovy language as Groovy performance is much higher, it better supports new Java features and provides some extra "syntax sugar" on top. See Groovy is the New Black article for details.
Try to avoid the pre / post processors if possible.
Your requirement is very simple and straight forward.
Directly use this in the path - assuming id is the name of variable which has the value.
/abc/${id}
I am trying to use beanshell post processor so I have started with simple http request where I am hitting the google home page. "${url}"=="https://www.google.co.in". After http request page I am adding the BeanShellPostProcessor where in Script area I am using ctx variable and some other code which is like :
int threadNum = ctx.getThreadNum();
String code = prev.getResponseCode();
String message = prev.getResponseMessage();
log.info(threadNum);
log.info("This line has been written by Beanshell Post Processor");
so I have two concerns -
i.The way I am using beanshell is this right ?
ii.Where is the console for beanshell processor in jmeter?
like sample request result can be viewed in listener. I tried with BeanShellListner, but it doesn't show any data.
Also I have kept the "log viewer" on.
You are using it almost right, the only error is that you cannot write an integer to the log file, you need to cast it to String first like:
log.info(String.valueOf(threadNum));
You won't be able to see the result of pre and post processors anywhere apart from jmeter.log file. In case of PostProcessor you can modify parent sampler response data via prev.setResponseData() method where prev is a shorthand to SampleResult class instance
I would also recommend considering switching to JSR223 Elements and Groovy language as this way you will get better performance, out of box support of XML, JSON, etc., and other Groovy's "syntax sugar". See Groovy Is the New Black article for more detailed explanation.
I want to extract value of the parameter sent through post request in jmeter.
I know the use of regular expression for extracting response value or request URL but here I would like to extract the value of post request.
I've been thorough how to extract value from request in Jmeter but it didn't worked.
Not sure why do you need it as given you sending "something" you should already have that "something" hence you don't need to extract it, however here you go:
In order to save 1st parameter value (or the whole post data if you use "Body Data" mode):
Add Beanshell PostProcessor as a child of the HTTP Request.
Put the following code into the PostProcessor's "Script" area:
String request = ctx.getCurrentSampler().getArguments().getArgument(0).getValue();
vars.put("request", request);
You will be able to access extracted value as ${request} where required.
Clarifications:
ctx - shorthand for JMeterContext class instance
getCurrentSampler() - in case of HTTP Request sampler stands for HTTPSamplerProxy
See How to Use BeanShell: JMeter's Favorite Built-in Component guide for more information on using JMeter and Java API from Beanshell test elements in your JMeter test.
I added a Beanshell PostProcessor in my http request with following code.
import org.apache.jmeter.config.Argument;
import org.apache.jmeter.config.Arguments;
Arguments argz = ctx.getCurrentSampler().getArguments();
for (int i = 0; i < argz.getArgumentCount(); i++) {
Argument arg = argz.getArgument(i);
String a = arg.getValue();
vars.put("EMAIL",a);
}
Explanation: I get a my request as a json and put it in EMAIL. Now I can use EMAIL as a variable in my other request.
Then, I added a jp#gc Json Path Extractor and I applied it to a Jmeter Varaible.
Now, Email will be used as variable, which contains my json request and I can extract using jsonPath Extractor.
An easy way to do this is using the JSON Path Extractor.
There are just
For the example you gave
{ "data" : { "name" : "john_doe", } }
'Variable Name: YourNewVar'
'JSON Path: $.data.name'
Should work, but you may need to do some experimenting.
You may want to add a "debug sampler" (its one of the standard samplers) and put in its title $YourNewVar so you can see what is being extracted.
Beanshell and "Regular Expression Extractor" will work, of course, but may be a little harder to use if you are not familiar with them.