How to parse the response header to a variable in JMeter using regex.
Below is the sample snippet of headers.
1) Add an Post Processor (Regular Expression extractor) like below.
2) Write the condition like below snippet.
3) Print the value for your reference in a Bean Shell Sampler
${resp_header}
sample print snippet for reference.
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 managed to set a script to extract value from token and using it globally for other thread but unfortunately, my script is extracting value as 1 by default.
BeanShell PreProcessor
Regular Expression Extractor + logs printed
My expectation is to print the value extracted from the token request .
It is difficult to answer why your script always extracts the value 1 till we know what is the response returned and how your Regex Extractor is behaving on this response. Also it is better to use Groovy in newer versions of JMeter instead of BeanShell.
As an example to help you, I have posted below the usage of Regex Extractor and Beanshell Preprocessor for one of my old projects which extracts a cookie & CSRF values from the response of the previous request and passes on to the next request.
HTTP Response:
{"responseMessage":{"messageObjects":[{"Authorization":"Bearer eyJhbGcxxxxxxxxxx.hsagdshvvdcwfdhwegdwdvbsqmshljkdhlqwkvnAJHFDBVGHWFHJDWBMNEHDJBSMNWBWJLHDKLJWHKJHDHWFVWDJGJKEWWBDNXVWGHDFWJHXKLBSNXVWFXWJEHXKWBXWDVXHGHWCDGXWDXCB0YXNrdcbwdgwegvcbwdvxbscxwfdvcwehgdwebwbvdcwdgckkhecdADGGHWFCVWBDVCGWCWVXNBSVXKWHCWVCBWCJWFGHECWECwgdhwvcwehhebdmnwwjhgnwvdcnbvwgvcwrehcwefnwecwghkevwe.abcdefghijklmnopqrst-poushfgabjwgjhwdvvttrudyqgd-CSGQGBkjgdjwhged","csrfToken":"adganm7ik39i6oclabce54154","ConnectedIP":"127.0.0.1","lastLoginIp":"null"}],"messageString":""},"responseStatus":200}
Regular Expression Extractor (Name of the variable used is "authcsrfkey")
{"responseMessage":{"messageObjects":\[{"Authorization":(.+?),"csrfToken":"(.+?)"
BeanShell PostProcessor (as I need to join the two extracted values. This postprocessor is just after the Regex Extractor)
String authkey=vars.get("authcsrfkey_g1");
String csrf=vars.get("authcsrfkey_g2");
String cookie="Authorization=" + authkey + "; csrfToken=" + csrf;
vars.put("cookie",cookie);
BeanShell PreProcessor (to be added in the header of the subsequent request)
import org.apache.jmeter.protocol.http.control.Header;
sampler.getHeaderManager().add(new Header("Cookie",vars.get("cookie")));
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
What should be the Regular expression if I want to extract the value for access token, So that i can use it in Path of other Http request ie like access_token=93ee29b4-74dc-4uu7-8e10-6eac6845511b from below http response.
{
"access_token":"93ee2tum-1234-56789-8e10-6eac684551tum",
"token_type":"Bearer",
"expires_in":3600,
"scope":"test"
}
I have given regular expression as
"access_token":"([^"]+)"
And also where can i check the value of regular expression I am getting
You can test your Regular Expressions using View Results Tree listener in RegExp Tester mode like:
Also you can use Debug Sampler to see the associated JMeter Variables. See How to Debug your Apache JMeter Script article for details.
Starting from JMeter 3.0 it's more handy to use JSON Path PostProcessor, in that case the relevant JSON Path Expression would be as simple as:
$.access_token
You can add following regex. It will get the token and depending on the name variable you set, you can add one BeanShell Post-processor to print the token in console for you to verify. Just add the following to it:
log.info(vars.get("token"));
// token is the variable name which you specify in Regular Expression Extractor.
In my application while executing the first request one unique key is generated which key is required for Next all the request. let me how to automate such scenario in Jmeter.
The process should look as follows:
Add Post Processor to the first request
Configure it to extract the required value and store it into a JMeter Variable
Use JMeter Variable from step 2 in your next request.
Depending on response data type you have the following choices:
Regular Expression Extractor - for text
CSS/JQuery Extractor - for HTML
XPath Extractor - for XML and XHTML
JSON Path Extractor - for JSON
It is also possible to extract data from files i.e. if response is in PDF format, but it's a little bit tricky
Example configuration to store the whole response:
Reference Name: any suitable variable name, i.e. response
Regular Expression: (?s)(^.*)
Template: $1$
You can refer the extracted value as ${response} where required. You can also amend the regular expression to extract response part instead of the whole response. JMeter uses Perl5-compatible regular expressions, see Regular Expressions User Manual Chapter for details
You can use regular expression extractor to extract the key from the response of your first request and use the extracted key for subsequent requests. To achieve this:
Right click on the first request and add post processor: Regular Expression Extractor.
Create your regular expression and provide values in other required fields. Please refer to JMeter component reference http://jmeter.apache.org/usermanual/component_reference.html#Regular_Expression_Extractor
Extracted value will be saved in the variable given as reference name
Use this variable in subsequent requests
Here is an example test plan with results.