How to get the return value from For loop and pass it to .body(StringBody(session => in Gatling u-CodePudding

How to get the return value from For loop and pass it to .body(StringBody(session => in Gatling using Scala

I have created a method with for loop to generate String Array in gatling with scala

def main(args: Array[String]): Unit = {
    var AddTest: Array[String] = Array[String]()
    for (i <- 0 to 3) {
      val TestBulk: String =
        s"""{ "name": "Perftest ${Random.alphanumeric.take(6).mkString}",
            "testID": "00000000-0000-0000-0000-000000006017",
            "typeId": "00000000-0000-0000-0000-000000011001",
            "statusId": "00000000-0000-0000-0000-000000005058"};"""
      AddTest = TestBulk.split(",")
      //  val TestBulk2: Nothing = AddTest.mkString(",").replace(';', ',')
      // println(TestBulk)
    }
  }

now I want to pass the return value to .body(StringBody(session =>

    .exec(http("PerfTest Bulk Json")
      .post("/PerfTest/bulk")
      .body(StringBody(session =>
        s"""[(Value from the for loop).mkString(",").replace(';', ',')
]""".stripMargin)).asJson

Please help me with the possibilities Please let me know if

CodePudding user response：

You don't need for loop (or var or split) for this. You also do not have ; anywhere, so last replace is pointless.

    val ids = """
       "testId": "foo", 
       "typeId": "bar", 
       "statusId": "baz"
    """

    val data = (1 to 3)
     .map { _ => Random.alphanumeric.take(6).mkString }
     .map { r => s""""name": "Perftest $r"""" }
     .map { s => s"{ $s, $ids }" }
     .mkString("[", ",", "]")

   exec("foo").post("/bar").body(_ => StringBody(data)).asJson

(I added [ and ] around your generated string to make it look like valid json).

Alternatively, you probably have some library that converts maps and lists to json out-of-the box (I don't know gatling, but there must be something), a bit cleaner way to do this would be with something like this:

    val ids = Map(
       "testId" -> "foo", 
       "typeId" ->  "bar", 
       "statusId" ->  "baz"
    )

    val data = (1 to 3)
     .map { _ => Random.alphanumeric.take(6).mkString }
     .map { r => ids   ("name" -> s"Perftest $r")  }
  

   exec("foo").post("/bar").body(_ => StringBody(toJson(data))).asJson

CodePudding user response：

This Worked for me

Thanks to @dima

I build this with her suggested method.

import scala.util.Random
import math.Ordered.orderingToOrdered
import math.Ordering.Implicits.infixOrderingOps
import play.api.libs.json._
import play.api.libs.json.Writes
import play.api.libs.json.Json.JsValueWrapper

val objMap = Map("name" -> Json.toJson(s"PerfTest ${Random.alphanumeric.take(10).mkString}"),
    "testId" -> Json.toJson("00000000-0000-0000-0000"),
    "typeId" -> Json.toJson("00000000-0000-0000-0003"),
    "statusId" -> Json.toJson("00000000-0000-0000-0000"),
    "excludedFromAutoHyperlinking" -> Json.toJson(true))
  Json.toJson(objMap)

  val data2 = (1 to 3)
    .map { r => Json.toJson(objMap) }

 println(data2)```