How to put json response in loop with condition?

I have parsed json response and saved it using .findAll(). What I want to do is, ignore keyframeId if value is ‘-1’ else put keyframeId(value other than -1) in .get() request with loop. I did some code but the value doesnt set in get() request and gives ‘KO’. it takes all the values in Vector and place all in single http call see error for details. Also I am not sure about the doIf condition. Can you please help? Thanks.

My Json response format is like this.
{ totalCount: 1134, limit: 9, offset: 0, resources: [ { title: "Test", keyframeId: -1 } { title: "Test1", keyframeId: 12345 } { title: "Test2", keyframeId: 12341 } { title: "Test3", keyframeId: -1 } { title: "Test4", keyframeId: 135481 } .... .... ]}

Here is the gatling script,

`
import scala.concurrent.duration._
import io.gatling.core.Predef._
import io.gatling.http.Predef._
import io.gatling.jdbc.Predef._

class MamamSearch extends Simulation {

val testServerUrl = System.getProperty(“testServerUrl”, “https://someurl”)
val username = System.getProperty(“username”, “ma”)
val password = System.getProperty(“password”, “ma”)
val userCount = Integer.getInteger(“userCount”, 1).toInt

val httpProtocol = http
.baseURL(testServerUrl)
.inferHtmlResources(BlackList("""..js""", “”"..css""", “”"..gif""", “”"..jpeg""", “”"..jpg""", “”"..ico""", “”"..woff""", “”"..(t|o)tf""", “”".*.png"""), WhiteList())

val headers_0 = Map(
“Accept” → “text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8”,
“Cache-Control” → “max-age=0”,
“Upgrade-Insecure-Requests” → “1”)

val headers_2 = Map(“Accept” → “text/css,/;q=0.1”)

val headers_6 = Map(
“Accept” → “text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8”,
“Accept-Encoding” → “gzip, deflate, br”,
“Cache-Control” → “max-age=0”,
“Origin” → testServerUrl,
“Upgrade-Insecure-Requests” → “1”)

val headers_80 = Map(
“Accept” → “text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8”,
“Upgrade-Insecure-Requests” → “1”)

val headers_7 = Map(“Accept” → “image/webp,image/,/*;q=0.8”)

val headers_11 = Map(“Origin” → testServerUrl)

val headers_12 = Map(
“Cache-Control” → “no-cache”,
“If-Modified-Since” → “Mon, 26 Jul 1997 05:00:00 GMT”,
“Pragma” → “no-cache”,
“X-Requested-With” → “XMLHttpRequest”)

val headers_15 = Map(
“Accept” → “application/json, text/plain, /”,
“Cache-Control” → “no-cache”,
“If-Modified-Since” → “Mon, 26 Jul 1997 05:00:00 GMT”,
“Pragma” → “no-cache”,
“X-Requested-With” → “XMLHttpRequest”)

val headers_16 = Map(“Accept” → “/”)

val headers_18 = Map(
“Accept” → “text/html”,
“Cache-Control” → “no-cache”,
“If-Modified-Since” → “Mon, 26 Jul 1997 05:00:00 GMT”,
“Pragma” → “no-cache”,
“X-Requested-With” → “XMLHttpRequest”)

val headers_19 = Map(
“Accept” → “/”,
“Accept-Encoding” → “gzip, deflate, br”,
“Origin” → testServerUrl)

val headers_27 = Map(
“Accept” → “/”,
“Accept-Encoding” → “gzip, deflate, br”,
“Content-type” → “text/plain”,
“Origin” → testServerUrl)

val uri1 = testServerUrl + “/mamam”
val uri2 = “https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0

// Login request
val scn = scenario(“MamamSearch”)
.exec(http(“Login”)
.post("/mamam/a/masteraccount/login")
.headers(headers_6)
.formParam(“username”, username)
.formParam(“password”, password))

// Fetch and save data
.exec(http(“Keyframe_request”)
.get(uri1 + “/awsset/browse%3Bresource_type=media%3Boffset=1%3Blimit=9”)
.headers(headers_12)
.check(jsonPath("$.resources[*].keyframeId").findAll.saveAs(“kList”))
)

// added loop and conditions
.doIf(session => session(“Keyframe_request”).validate[String].map(kList => !kList.contains("-1")))
{
foreach("${kList}", “keyId”) {
exec(http(“Set_Keyframes”)
.get(uri1 + “/keyframes/${kList};width=185;height=103”)
.headers(headers_7))
}
}

.exec(http(“Logout”)
.get("/mam/logout")
.headers(headers_80))

setUp(scn.inject(atOnceUsers(userCount))).protocols(httpProtocol)
}
`

Throws following Error:

`
21345 [GatlingSystem-akka.actor.default-dispatcher-13] WARN i.g.http.ahc.AsyncHandlerActor - Request ‘Set_Keyframes’ failed: status.find.in(200,304,201,202,203,204,205,206,207,208,209), but actually found 400
21346 [GatlingSystem-akka.actor.default-dispatcher-13] DEBUG i.g.http.ahc.AsyncHandlerActor -

Request:
Set_Keyframes: KO status.find.in(200,304,201,202,203,204,205,206,207,208,209), but actually found 400

21390 [GatlingSystem-akka.actor.default-dispatcher-4] INFO io.gatling.http.ahc.HttpEngine - Sending request=Set_Keyframes uri=https://someurl/mamam/keyframes/Vector(167154,%20167035,%20167037,%20167040,%20167029,%20167024,%20167026,%20167022,%20167023);width=185;height=103:
`