I'm trying to extract variables returned from one HTTP request, use them in a second HTTP request then extract the variables returned from the second HTTP request.
I then need to use both the first extracted and second extracted variables in a third HTTP request.
I can extract the variables from the first HTTP request and use these in the second HTTP request but cant seem to get the variables extracted from the second HTTP request to then use in the third HTTP request.
Is it even possible to do this?
This is my current set up
It should be straightforward and possible as long as both extractors are going into unique variable names. The Debug Postprocessor will show you the values stored in each variable after a test run. What do you see in those in the context of the third http request?
Related
I have a ForEach Controller that loops over an array of values which works. Inside the ForEach block I have two HTTP requests and one extractor.
ForEach Loop {
+ HTTP Request 1 (This uses attribute from ForEach)
+ Extractor
+ HTTP Request 2 (This uses attribute from Extractor)
}
The first HTTP request runs and the extractor as well but the second HTTP request fails to run.
I've checked the logs and nothing is mentioned about this HTTP Request. I also tried moving the Extractor out from under the HTTP Requestor 1 but that also doesn't work.
There is no problem to have multiple Samplers as ForEach Controller children
The possible reasons for not executing the 2nd HTTP Request are in:
Your extractor fails somewhere somehow, double check that the variable is set and has expected value using Debug Sampler and View Results Tree listener combination
Your 2nd HTTP Request configuration is not correct, i.e. invalid characters in "Server Name" field or unsupported protocol or the request is actually being executed but takes too long, etc. I would recommend looking into jmeter.log file as normally it has enough troubleshooting information
I am wondering how I can use a dynamic variable in the Path field of a HTTP request . I am able to use User Defined Variables, but they are static, I need to use a variable that extracts some unpredictable value from the response of a previous HTTP request. I.e. the URL in the below scenario resolves literally to /this/and/that.jspx?param1=${testvar} , so you can see ${testvar} is not being substituted. How do I get ${testvar}, a variable created during regex extraction in a previous HTTP Request, to be substituted?
FYI I am using JMeter 2.11 and upgrading may not be an option (corporate policies... )
JMeter Variables resolution/substitution works normally no matter of JMeter version, I can think of 2 possible reasons:
You're looking into wrong place. You should be inspecting Request tab of the View Results Tree listener in order to see the actual URL
Your ${testvar} variable is not defined, i.e. Regular Expression Extractor fails to extract the required value. You can double check it using Debug Sampler:
I am performing load testing on an API using JMeter. For that, I call an oauth link, which returns a code in the headers which I use for further testing. But the link redirects to another link and I am unable to capture the value of the response headers when a response with status code 302 is returned. How can I do that.
If your situation is like this one:
You can still extract the dynamic value from the latter sample result by modifying Regular Expression Extractor scope
As per documentation:
Apply to:
This is for use with samplers that can generate sub-samples, e.g. HTTP Sampler with embedded resources, Mail Reader or samples generated by the Transaction Controller.
Main sample only - only applies to the main sample
Sub-samples only - only applies to the sub-samples
Main sample and sub-samples - applies to both.
JMeter Variable - assertion is to be applied to the contents of the named variable
By default Regular Expression Extractor is looking into Main sample only, in the above example it is HTTP Request, if the data you're looking for is stored in one of the sub-samples it is enough to change Regular Expression Extractor's scope to look into sub-results as well:
You have 2 options:
Do not allow HTTP request to redirect. Simply uncheck "Follow Redirects" checkbox in the HTTP Sampler:
That way you can process this request normally. The drawback is of course that you need to add a second request which will take you to a link to which you are normally redirected automatically.
Most post-processors allow you to extract value from either main sample, or sub-samples, or both. So follow redirect as before, but change Post-Processor to extract value from sub-sample. For example Regular Expression Extractor:
As am new to jmeter please help me in passing the value from a webservice response as the input to the next webservice request
I guess that your web service returns XML (more likely) or JSON.
All you need is to use XPath Extractor Post Processor, get interesting response part, store it to variable and use in next request.
You can address variables next ways:
${YOUR_VARIABLE_NAME}
${__V(YOUR_VARIABLE_NAME)}
I prefer the second option as it allows combining several variables, evaluating functions, etc.
I am using JMeter to send HTTP POST requests.
My body of the request is JSON, for example something like {"Var1": "${Var1}","Var2": ${Var2},"Var3":"${Var3}"}.
These are set in the parameters of the HTTP requests with no name for the parameter. This works fine and I am able to send requests using the variables that I set in a beanshell pre processor (by setting the variables and using vars.put() ).
My question is how can I send programmatically through the preprocessor part of the parameters? For example:
if(a){
send parameters `{"Var1": "${Var1}","Var2": ${Var2}` as my JSON
}
else {
send parameters `{"Var3":"${Var3}"}` as my JSON
}
vars.remove() doesn't work for me as it removes the value from the variable but still sends it in the request (for example as "${Var1}").
Replace the preprocessor by a Beanshell Sampler that will compute a boolean value a and put it as a var:
vars.put("a", value)
Then use 2 If Controllers where each one will contain a sampler with the different parameters.
Condition of first one will be ${a} and for be it will be the negation of ${a}.
Just use the "Body Data" tab. You can conditionally create the JSON string and then just "print" the variable in the body data using normal placeholders.
The easiest and fastest way of achieving what you want to do is to use the JMeter if controller (Add -> Logic controller -> If controller).
You add an if controller to the Thread Group that you're working on and place your expression that returns a boolean in Condition (default Javascript). As a child node for the if controller you place the HTTP Request sampler that you want to fire in case the if is successful.
Suppose you want to send a request if a property that you are passing to JMeter exists:
${__P(media)}.length > 0
The you add another if controller with a negated condition for what you just checked with another HTTP Request sampler.
You're done.