I'm load testing my API which requires to authenticate everytime before calling the API. I need to read a query param from HTTP header "Location" and use it in further requests in Jmeter. I tried to use "Regular Expression Extractor" with Location: .+=(.*?)\n but it didn't work. Any ideas how to read a specific variable from response headers?
Location: https://<<SSO_URL>>/authenticate?code=AbCDEfg1&..... --> extract "code"
Please try with this, regex for your question is code=([^&]*)
You need to change your regular expression to something like:
Location:\s* .*=(.*?)&
And make sure to choose Response Headers from the scope:
See Regular Expressions chapter of the JMeter User Manual for more details
Also it might be much easier to use the Boundary Extractor, in this case you will just need to provide the "left" and "right" boundaries and it will fetch everything in-between:
Moreover it works faster and consumes less resources, see The Boundary Extractor vs. the Regular Expression Extractor in JMeter article for more information
Related
I'm new here and also a beginner on JMeter and maybe this was already answered in an old post that I didn't find, sorry if this is the case.
I had this Post request I need to send with all these IDs that vary according to the account
Post Request
In order to get all of the IDs, I used the JSon extractor to put then into a variable
JSon extractor, then I got all the FieldIDs that I need.
ID extracted
But now how can I add this variable inside the request? I tried something like {"ids":"${fieldId}","includeBoundary":true} but it didn't work. How can I use this?
Please see: HTTP Request parameter dialog example
If you need to extract the whole response, save it into a JMeter Variable and send it back to another endpoint - the easiest way is using Boundary Extractor providing empty left and right boundaries
If you need more complex transformations - take a look at JSR223 Test Elements and Groovy language
I solved my problem in a so easy way(damn it)!!!!
On the Json extractor I just marked the option "Computer concatenation var (suffix_ALL)" then on the debbuger I got all IDs I needed in only one line and finally on my request I just add on the body data the line {"ids": [${fieldId_ALL}],"includeBoundary":true} and bingo it worked like a charm!!!!
I'm having some issues getting the variables from a Regular Expression Extractor to show in the View Results Tree.
Reg Ex and Test Plan
The Regular Expression Extractor is a child of the HTTP Request. The Debug Sampler and the View Results Tree are at the same level as the HTTP Request. I am trying to extract the Authorization Token.
API response
As you can see, I get a 200 response from the server with the Token.
View Results Tree with no RegEx variables
But I'm not even seeing the RegEx variables in the Debug Sampler. I would expect to see them, even if the Extractor didn't pull anything from the response. Am I missing a node? Looking in the wrong place? Using the wrong elements?
I've burned half a day researching and trying different things, please help.
Thanks.
Your regular expression is not correct, you should be using something like (.*) as your one will not match anything if you don't provide right boundary which you don't have. You can attempt sticking to line break character but it might not work if your token comes last
You're looking into wrong tab of the View Results Tree listener, JMeter Variables (including pre-defined ones) live under Response Data -> Response Body path
Check out How to Debug your Apache JMeter Script article to learn more about JMeter tests troubleshooting techniques.
I'm trying to extract the CSRF token so I can log in, and be able to obtain cookies, but I'm not able to.
I'm able to get a 200 response code when accessing the URL that contains the CSRF token, and I'm able to see it on the browser and the console, but my response assertion is not able to assert anything regardless of me changing the apply to, field to test, and pattern matching rules sections. My regular expression extractor isn't able to get anything either. All the headers to get to the URL are there. Any suggestions?
Forgot to mention, I'm able to get it on one server that's exactly (or should be) exactly the same as this one...
EDIT:
I placed it under the HTTP Sampler that has that response, and here is an example of what I get for my response assertion. I've also added various images.
Unfortunately you didn't share your output, so I cannot tell for sure, but although it seems your RegEx is correct in both cases, it could be that it doesn't match due to some extra spacing.
It appears that you are expecting a valid JSON, so instead of RegEx you could use JSON Extractor and/or JSON Assertion, for which extra spacing will not matter.
Example: if Response Data is
{"token":"12345"}
I can specify JSON Extractor as
(most important line is JSON Path: $.token)
and the result will be variable token with value 12345.
Here's a good online JSON Path tester, which can help you to figure out the right JSON Path.
If your goal is to check presence of a JSON Object with name of token and an arbitrary value I would recommend going for JSON Assertion instead.
Add JSON Assertion as a child of the request you would like to assert.
Use the following JSON Path query:
$.token
JSON Assertion is available since JMeter 4.0
If you still want to go for the Response Assertion - configure it as follows:
Pattern Matching Rules: Contains
Patterns to Test: {"token":"(.+?)"}
Can somebody please explain me how can I use JMeter for Feature testing?
I'm able to create multiple HTTP requests within a Testplan. But I need know the way to capture the previous API response and pass one of the response data to the next API request.
Eg:
1.Create Account.
Request- POST: /account
Response: ID: "Value"
Read account
Request- GET: /account/
JMeter is really more of a load testing tool, and best used as such. Capturing data from responses is possible using the Regular Expression Extractor, which can store extracted values in variables for use in a subsequent request. It is a bit of a pain in the ass to use, though.
On your request, add a Regular Expression Extractor:
Field to check: body
Reference name: EXAMPLE
Regular Expression: \[.*\] #your regex here, stuff in square brackets as example
Match No.: 1
In a subsequent request, you can then use the variables defined by the extractor, e.g. ${EXAMPLE_g0} for the entire match, or ${EXAMPLE_g1} for group 1, etc.
I am new to jmeter. Can anyone help me to use a response object of one request to be passed as a request header of next HTTP request ?
Let me explain.
I am getting an access token along with the response of login in my app:
{: "responseCode":18, : "message":"Successfully logged in.", : "responseObject":"8zWExE4eSdhcJDwnW9MgIw=="}
No I want to use this access token (8zWExE4eSdhcJDwnW9MgIw) as one of the parameter of next request.
I used JSON Path Extractor for this.But its not working.
I am using JSON Path Extractor as well and it works great if it is properly configured.
Just put it into request and fill fields:
Variable Name: access_token (or any other you want to use later in request like this ${access_token})
JSON Path: responseObject should be enough if the JSON you pasted is full response (thjose additional colons are just some mistakes when copy-pasting or the JSON is corrupted?)
Default Value: I always use some value like 'NotUpdated!' here so I can assert in the next step or at least see it easily in request.
Not seeing the full response it is quote hard to come up with a correct JSON Path expression.
Given what you posted it should be something like $.responseObject
See JSON Path Syntax guide for queries syntax examples and Using the XPath Extractor in JMeter (scroll down to "Parsing JSON") for plugin installation instructions and XPath to JSON syntax mapping.
Just in case anybody would face an issue with multiple variable extractions using JSON Extractor (like me), make sure to:
List the names of variables/path expressions/default values using a semicolon as a separator.
Provide default values for every variable.
The second point is apparently required, and I only found out about it from this
Medium post.