Есть такой метод
def loginRequestPositive(mapContainer: MapContainer) = exec {
var temp = getRandomUserIndex()
log.info("user index: {}", temp)
exec(http("Login")
.post("/login/email")
.formParam("username", "testuseremail" + temp + "@
test.com")
.formParam("password", "testPass" + temp)
.formParam("_csrf", "${csrfToken}")
.disableFollowRedirect
.check(
status.is(302), header(HttpHeaderNames.Location).saveAs("redirectUrl"))
) }