Gatling login example and showing how to pull out the HTTP authorization header into a variable

login_test.scala

package test

import scala.concurrent.duration._

import io.gatling.core.Predef._
import io.gatling.http.Predef._
import io.gatling.jdbc.Predef._

class LoginTest extends Simulation {

  val sessionHeaders = Map("Authorization" -> "Bearer ${authToken}",
                           "Content-Type" -> "application/json")

	val httpProtocol = http
		.baseURL("http://xx.xx.xx.xx:3000")
		
	val scn = scenario("login_test")
		// LogIn
		.exec(http("login")
			.post("/api/login")
			.formParam("organization_id", "4666")
			.formParam("email", "[email protected]")
			.formParam("password", "put_password_here")
      .check(jsonPath("$..token").exists.saveAs("authToken"))
      )
    .exec(http("get_alerts")
      .get("/api/alerts")
      .headers(sessionHeaders)
      )
    .exec(http("create_widget")
      .post("/api/widgets")
      .headers(sessionHeaders)
      .body(StringBody("""{"description":"This is just a sample description.","name":"Junk"}"""))
      .check(jsonPath("$..id").exists.saveAs("newWidgetId"))
      )

	setUp(scn.inject(atOnceUsers(1))).protocols(httpProtocol)
}

This is exactly what I am trying to do right now: Capture a stateToken and a SAMLResponse. Apparently, I am below a beginner, because I cannot understand the code provided. The .check(jsonPath("$..token").exists.saveAs("authToken")) code makes sense, but I cannot figure out where to insert it in my existing Scala code.

when I add the .check to my Scala, I get the error "cannot resolve symbol check"

And what is the "extra" parenthesis on the next line. It seems to be unmatched.

In my existing code I have this

.body(StringBody("{\"password\":\"ugly898p\",\"username\":\"x019785\",\"options\":{\"warnBeforePasswordExpired\":true,\"multiOptionalFactorEnroll\":true},\"stateToken\":\"00P8sbB2MC-fuCv4FzfZVMvM7QJlwHYfOsiL1DtuOZ"\"}"))))

The stateToken is already being provided in the login step, so I somehow need to capture it earlier.

I am taking a Gatling class on Udemy now, but since I have never written Json or Scala, I feel like I am reading Hindi.

Thank you! This was very useful

Can you also show example where you hit the oAuth server to fetch the bearer token and then use this token to hit api from different server. Since I am beginner, sample usage will be really appreciated.

Thanks alot man!