how to assign response value to next request

Gatling (Open-Source)
1

Hi All,

In below code, i am capturing response in UserId variable. I am failing to pass this UserId variable in next request, it is throwing errors.

.exec(http(“Create USer”)
.post(""“Urlxxxx”"")
.body(StringBody("""{“email”:“sample@gmail.com”}"""))
.check(headerRegex(“Location”, “(.*)”).saveAs(“userId”))) // capturing dynamic value in UserId variable

// System.out.println("UserID: " + userId+ “\n”) // i tried to print like this, no use

//exec(
(s:Session) => println(s.getAttribute("
userId")) // tried this also, but no use to conform what i am getting in UserId
)

/**************** next request*******************************/

val scn1 = scenario(“Identity”)
.exec(http(“request_0”)
.post("""/urlxxxx""")
.body(StringBody("""{
“username”:“anitha156”,
“password”:“anitha56”,
“userId”:"${userId}", // passing that userid in this request.
}""")))

}

Can anyone please help me on this?

Thanks in advance…

Regards,
Anitha.

2

Except if you disabled followRedirect, you’ll never see Location headers, so your headerRegex won’t work.
Use currentLocationRegex instead. http://gatling.io/docs/2.0.1/http/http_check.html?highlight=currentlocation#page-location

3

Hi Stephane,

Thank you for your reply…

When i used ".check(currentLocationheaderRegex(“Location”, “(.*)”).saveAs(“userId”)))"i got below error message.

[ERROR] i.g.a.ZincCompiler$ - C:\Users\anitha\Desktop\gatling-chart
s-highcharts-2.0.1\user-files\simulations\CreateUser.scala:128: too many arg
uments for method apply: (v1: io.gatling.core.session.Session => io.gatling.core
.validation.Validation[String])io.gatling.http.check.url.CurrentLocationRegexChe
ckBuilder[String] with io.gatling.http.check.url.CurrentLocationRegexOfType in t
rait Function1

In documentation i saw below syntax , if i use this , where should I save my userId value?

__currentLocationRegex("http://foo.com/bar?(.*)=(.*)").ofType[(String, String)]__

And one more point here, i am trying to pass this value to next request in same script, like ,"{userId}", But i am getting "No attribute name userId is found.

So, can you please help me on how to pass this value to next request?

Thanks for your help in advance.
Regards,
Anitha.
4

Please properly read the documentation.

__currentLocationRegex("[http://foo.com/bar?(.*)=(.*)](http://foo.com/bar?(.*)=(.*))")__

Not currentLocationheaderRegex("****Location", “(.*)”)

5

I found answer for the not answered part of the question (how to capture more than one regex group and pass it to further code) in another group: https://groups.google.com/d/msg/gatling/yvGxQKkKzsA/O8bQ6JJcoF0J . Examples on how to use Tuples in Scalal: http://alvinalexander.com/scala/scala-tuple-examples-syntax. The way described there should be already implemented for Gatling (https://github.com/gatling/gatling/issues/1991), but I was not able to make it work with Gatling 2.2.2.
I am posting reply to this old group for future users looking for a solution who might find it useful.