How to use session id from a previous HTTP request? - session

I record my script from internet explorer using JMeter version 3.3 but when I run it the first HTTP request created a new session but the next request is nothing changed it is because the session id of the second request is indicated to its path unlike the first request.
So this is my question, How to use session id from the previous request and put it to the path in the second request. Please see the image below

Add Regular Expression Extractor as a child of the first request and configure it as follows:
Reference Name: anything meaningful, i.e. SessionId
Regular Expression: SessionId=([+-]?\d+)
Template: $1$
Replace hard-coded recorded value in 2nd request with ${SessionId}
References:
JMeter: Regular Expressions
Using RegEx (Regular Expression Extractor) with JMeter
Perl 5 Regex Cheat sheet

Related

Extracted Regex Value not getting passed into next POST request body in Jmeter

In my first request I am able to extract the value using Regular Expression Extractor which is clearly visible into the debug sampler. The value is extracted by setting the following options in Regular Expression Extractor:-
Name of Created Variable:- instanceUID
Regular Expression:- "InstanceUid":"(.*?)"
Template:-$1$
Match No:-1
Default Value:- (Blank)
The value that I want to pass in the next POST request is visible as:-
instanceUID_g1=2ab5dfb8-a217-4ff2-9025-523565b7b7ad
And the body for the next HTTP POST request is set like this:-
${"iInfo":{"InstanceUid":"${instanceUID_g1}","Registry":"${Registry}"}}
When this request seen in detail inside View Results Tree looks like:-
${"iInfo":{"InstanceUid":"${instanceUID_g1}","Registry":"AAX"}}
As seen the value of ${instanceUID_g1} did not get substituted in the POST body as was for variable ${Registry} which was taken from CSV config.
Being new to Jmeter can anyone suggest what did I miss?
Most probably your Regular Expression Extractor placement is not very correct, be informed about JMeter Scoping Rules concept
If you place Regular Expression Extractor as a child of the request - it will be applied to this request only
If you place Regular Expression Extractor at the same level as several requests - it will be applied to all of them
in the latter case it will be applied 1st to 1st sampler, then to Debug Sampler, then to 3rd sampler so on 2nd step it will be overwritten, most probably that's your problem
Also it appears that you're getting the data from JSON so it makes more sense to use JSON Extractor or JMESPath Extractor

Is there anyway to pass response of a HTTP sampler to request as another sampler in JMETER

I am testing rest API using Jmeter. In one scenario need to pass complete response of a http sampler to, another http sampler as a request dynamically. Any suggestions how to achieve this in Jmeter.
Add Regular Expression Extractor as a child of the request which response data you want to capture
Configure it as follows:
Name of created variable: anything meaningful, i.e. response
Regular Expression: (?s)(^.*)
Template: $1$
That's it, you should be able to refer the extracted value as ${response} where required.
Explanation of the regular expression:
() - grouping
(?s) - single line modifier
^ - line start
. - wild card character
* - repetition
More information:
JMeter: Regular Expressions
How to Extract Data From Files With JMeter
You can get all response using Regular Expression Extractor with regex accepting all characters
In next JMeter 5.2 version you will able to do it using Boundary Extractor by keeping Left and Right Boundary empty

Jmeter performance testing :

I have a requested in jmeter that request created new one request, so I need that new one request url in a variable because new one request having a user I'd.
You can handle this situation in at least 2 ways:
Extract the dynamic part using Regular Expression Extractor:
Add Regular Expression Extractor as a child of the 1st request
Configure it as follows:
Field to check: URL
Reference Name: anything meaningful, i.e. id
Regular Expression:userId=(.*)
Template: $1$
Assuming everything goes well you should be able to refer extracted value as ${id} where required (manually add it to the end of each and every request)
You can semi-automate the process using Using the HTTP URL Re-writing Modifier, just add it as a child of the first request and put userId into "Session Argument Name" input field, JMeter should be smart enough to automatically add these "userId" postfixes to subsequent requests.

jmeter: extract information from headers and save it to a variable

My task is to make a request and save some data from the headers in a variable and use it later in another requests.
So I've added an http request and added an regular expression extractor. Here is my setup:
And then I've created another request and I'm using the LocationToken variable, but there the variable has the default value (dd). here is the response:
So, as you can see, the pattern patches on the headers. So what have I done wrong?
In Regular Expression Extractor, under Apply to section, you should select Main sampler and sub-samplers option but not JMeter Variable.
Regular Expression Extractor saves the value into the variable which we specified in Reference Name field.
in the question,
Reference Name: LocationToken
in later request, you refer the value as follows:
${LocationToken}

How to Re-use data generated by one Response to other request?

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.

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