Auth token handling for Gatling - scala

Question

Doing performance testing of API using Gatling.
Scenario:
Login (authToken will be generated in header)
For GET, POST, PUT request, need to pass that generated authToken in header
Here's my code snippet:
package apitest
import scala.concurrent.duration.*
import io.gatling.core.Predef.*
import io.gatling.http.Predef.*
import io.gatling.jdbc.Predef.*
import scala.language.postfixOps
class TestEnv4trial extends Simulation {
var e1: String = "https://testenv1-dev.net"
var e2: String = "https://testenv2-dev.net"
var BaseUrl: String = e1
var pwd: String = "pass123"
// Users
var admin: String = "admin123"
val httpProtocol = http
.baseUrl(BaseUrl)
.inferHtmlResources()
val login_headers = Map(
"Accept" -> """*/*""",
"Connection" -> "keep-alive",
"Content-Type" -> "application/x-www-form-urlencoded;charset=UTF-8"
)
val scn1 = scenario("Admin Login")
.exec(http("Login Admin")
.post({BaseUrl} + "/api/user/login")
.formParam("username", admin123)
.formParam("password", pass123)
.check(jsonPath("$.authToken").saveAs("tokenId")))
.exec { session => println(session("tokenId").as[String]); session } //authToken getting printed
val common_headers = Map(
"Accept" -> """*/*""",
"Accept-Encoding" -> "gzip, deflate, br",
"Accept-Language" -> "en-GB,en;q=0.9,en-US;q=0.8",
"Authorization" -> "Bearer " + $tokenId, //With hardcoded authToken works. Need to pass generated authToken in prev scenario here.
"Connection" -> "keep-alive",
)
val scn2 = scenario("All Employees")
.exec(http("All Employees")
.post("/api/employee/lists/")
.headers(common_headers)
.body(RawFileBody("test/TestEnv4trial/employees_request.json")).asJson)
setUp(
scn1.inject(atOnceUsers(1)).protocols(httpProtocol),
scn2.inject(atOnceUsers(1)).protocols(httpProtocol))
}
When I hardcode authToken generated in scn1 in common_headers, scn2 works.
But when I use tokenId, its not able to identify tokenId.
How do I pass saved key tokenId in common_headers?
Thanks.

Answer 1

"Authorization" -> "Bearer " + $tokenId
This doesn't compile.
Currently, you're using Session attributes, meaning tokenId is scoped for the single user executing scn1.
There's no way for a user executing scn2 to be able to reach it as is.