Pass specific value from feeder to script in gatling - scala

Question

I am working on performance test, for that I have below Gatling script -
val getUserById: ChainBuilder = feed(userEmailFeeder).exec(http("User By Id")
.get("url")
.headers(getHeaders)
.check(status is 200)
)
private val getHeaders = Map.apply(
"Content-Type" -> "application/json",
"Accept" -> "application/json",
"token" -> {tokenValue}
)
object BearerToken {
//Generating token here
}
In userEmailFeeder I have user emails and passwords. I have to generate a token for every email present in feeder and add to header in getHeader.
Can someone guide me how I can pass same email & associated password to BearerToken for which getUserById is referring from feeder so it will genearte token and add into header?

Answer 1

You can create method which will get your email and password from session, generate token and then write this values to session.
val generateTokenByEmailAndPassword: Expression[Session] = (session: Session) => {
val email = session("email").as[String]
val password = session("password").as[String]
// your logic for generate token
val token = email + password
session.set("tokenValue", token)
}
And then add to scenarion
...
.feed(userEmailFeeder)
.exec(generateTokenByEmailAndPassword)
.exec(http("User By Id")
...
A little remark - for get session value need add $
Wrong: {tokenValue}
Right way: ${tokenValue}