When i run a thread group Loop Count with 2 for the first loop it works well but for second iteration it fails because in Header it add two times the Authorization Bearer token
I have created HTTP Request sampler named as “Login Request" inside of this sampler i added BeanShell PreProcessor’
import org.apache.jmeter.protocol.http.control.Header;
sampler.getHeaderManager().add(new Header("Authorization","Bearer " + vars.get("Token")));
It works well for 1 iteration but in second iteration it fails error shows there are two authorization in header
You don’t need any Beanshell to do that
Just add a Header Manager and put in it :
Name: Authorization
Value: Bearer ${Token}
Amend your code to invoke removeHeaderNamed() function like:
import org.apache.jmeter.protocol.http.control.Header;
sampler.getHeaderManager().removeHeaderNamed("Authorization")
sampler.getHeaderManager().add(new Header("Authorization","Bearer " + vars.get("Token")));
this way you will get confidence that each time you're having only one Authorization header.
Also be aware that since JMeter 3.1 you should be using JSR223 Test Elements and Groovy language for scripting mainly because Groovy has much better performance comparing to Beanshell so consider migrating on next available opportunity (the same code will work fine)
Related
I have recorded script using BlazeMeter plugin and I want to the use access token which I receive in successful login request, in another request. My Test plan looks like as below
Thread Group : [A]
|- HTTP Sampler - Login Page
|-Regular Expression Extractor [getToken]
|-HTTP Sampler - Other Page
|-Beanshell PreProcessor[Set Header in Authorization]
Regular Expression Extractor parameters and values like below :
Variable Name : token
Regular Expression : {“access_token”:”(.+?)"
Template : $1$
Match No. : 0
Beanshell PreProcessor script like below
import org.apache.jmeter.protocol.http.control.Header;
log.info("Start");
sampler.getHeaderManager().add(new Header("Authorization","Bearer"+vars.get("token")));
log.info(vars.get("token"));
Most probably your Regular Expression Extractor fails as your quotation marks look utterly suspicious. You can double check if the token variable really has the anticipated value using Debug Sampler and View Results Tree listener combination. Also check out jmeter.log file for any suspicious entries, if your Beanshell script fails - the cause will be printed there.
The response data of the Login Page seems to be JSON therefore it makes sense to use the JSON Extractor instead of the Regular Expression Extractor. It allows using JSON Path language in order to extract "interesting" bits of data from the responses. In your case the relevant JSON Path expression would be $.access_token
Since JMeter 3.1 it's recommended to use JSR223 Test Elements and Groovy language for scripting so consider migrating to the JSR223 PreProcessor and Groovy language (you can re-use the same code)
You don't even need the scripting, you can add Authorization header (as well as any other header) using HTTP Header Manager
Could you add debug sampler and try first to confirm your regular expression extractor working as expected? It should provide you the required value of token.
If your token has the required value, I will suggest you to add HTTP Header Manager config element by right clicking on HTTP sampler
HTTP Request => Add => Config Element => HTTP Header Manager
In this config element, you can visually add the Headers as below:
Please Note That:- You have not provided any space/hyphen(-) or between keyword Bear and token.
Refer this link for details :-
https://stackoverflow.com/a/24550552/1115090
I have a looping process that will extract some values from a web service (working) and loop through to pull all the information for each value (working).
I need to capture the whole return into a variable so I can modify it and post it back up later.
Screenshot:
When the "Baseline for ..." get kicks in, I get the proper response
But the "Get response" BeanShell PreProcessor is picking up old responses
Screenshot:
Given where my "Get response" object is, I would assume the:
vars.put("ResponceData", prev.getResponseDataAsString());
...would grab the response from "Baseline for ${ID} of site ${callSite}". Please help!
You are using wrong test element. Beanshell PreProcessor is being executed before request therefore it acts properly and returns response from the previous request instead of current one. You need to change it to the Beanshell PostProcessor and your code will start working as you expect.
It is recommended to avoid scripting where possible, if you need to save response data into a JMeter Variable you can do it using i.e. Regular Expression Extractor. According How to Extract Data From Files With JMeter article the relevant configuration will be something like:
Reference Name: ResponceData
Regular Expression: (?s)(^.*)
Template: $1$
If you face a JMeter limitation which cannot be worked around without using scripting make sure you are using the most performing scripting language, since JMeter 3.1 it is recommended to use JSR223 Test Elements and Groovy language
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:
I have an Authenticate method that calls the Service and gets the response, i use those response object(token in response) and insert them into regular exp variables
(BeanShell Post processing of authenticate method code below)
import org.apache.jmeter.protocol.http.control.Header;
sampler.getHeaderManager().add(new Header("Token",vars.get("Token")));
But i see i get an error below. Not sure where exactly is the issue i guess it is not able to identify the sampler class or the getHeaderManager() method
Note: My authentication call succeeds and get a response
ERROR - jmeter.util.BeanShellInterpreter: Error invoking bsh method: eval Sourced file: inline evaluation of: ``import org.apache.jmeter.protocol.http.control.Header; sampler.getHeaderManager . . . '' : Attempt to resolve method: getHeaderManager() on undefined variable or class name: sampler
Anyhelp is highly appreciated, Thanks
Unlike Beanshell PreProcessor, Beanshell PostProcessor doesn't have an access to previous sampler object, so sampler is indeed undefined. Also I think your intention is to add that header to the following samplers, not to the current one (which already finished running). So instead of having post-processor on the sampler which retrieves the token, you need to have a Beanshell PreProcessor on each sampler afterwards with the same code.
You need to use ctx.getCurrentSampler() instead of sampler in case of Beanshell PostProcessor
See:
JMeterContext class JavaDoc
How to Use BeanShell: JMeter's Favorite Built-in Component guide
Also keep in mind that PostProcessor is executed after the sampler so the parent sampler will not be affected by header change.
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