# Script uses same name everytime for multiple requests instead of using different name per request
**URL:** https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614
**Category:** Gatling (Open-Source)
**Created:** [March 16, 2017, 1:38pm UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614 "2017-03-16T13:38:23Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Peter](https://community.gatling.io/u/Peter)
#### Post date: [March 16, 2017, 1:38pm UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/1 "2017-03-16T13:38:23Z")
Hi All,
I am creating a gatling script which takes names in StringBody. **Name should be unique everytime** so I have to generate different random names. Here below script generates different names.
For single user it works fine. For multiple users it generates multiple random names but **it request with SAME NAME everytime instead of using different name on every requests**.
Like if I use userCount = 5, it will generates 5 different strings but unfortunately it request with one same string everytime in stringBody. I want 5 requests with different names. Can anyone please help me? **Thanks**.
Here is the code:
```auto
import io.gatling.core.Predef._
import io.gatling.http.Predef._
import scala.concurrent.duration._
import scala.util.Random
class myTerm extends Simulation {
val scenarioRepeatCount = Integer.getInteger("scenarioRepeatCount", 1).toInt
val userCount = Integer.getInteger("userCount", 5).toInt
val TID = System.getProperty("TID", "13203462112")
// Methods for random char generator
def randomAlpha(length: Int): String = {
val chars = ('a' to 'z') ++ ('a' to 'z')
randomStringFromCharList(length, chars)
}
def randomStringFromCharList(length: Int, chars: Seq[Char]): String = {
val sb = new StringBuilder
for (i <- 1 to length) {
val randomNum = util.Random.nextInt(chars.length)
sb.append(chars(randomNum))
}
sb.toString
}
val httpProtocol = http
.connection("""keep-alive""")
.contentTypeHeader("""application/json""")
val scn = scenario("Create")
.repeat (scenarioRepeatCount) {
exec(http("Create with random names")
.post(s"""http://someurl/api/thri/$TID/terms""")
.body(StringBody("""{"term": """" + randomAlpha(7) + """"}""")) // Here randomAlpha(7) creates a string with 7 alphabates
)
}
setUp(scn.inject(atOnceUsers(userCount))).protocols(httpProtocol)
}
```
---
### Author:  [@Artajew\_Adam](https://community.gatling.io/u/Artajew_Adam)
#### Post date: [March 17, 2017, 7:50am UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/2 "2017-03-17T07:50:11Z")
Hi Peter,
you need to use lambda to make it execute every time the step is encountered by Gatling. Here is the example, the fun part is highlighted in red:
`
val scn = scenario(“Create Person”)
.exec(
http("[POST] Create person")
.post("/persons")
.body(StringBody( **\_ =\>** “”"{“name”:"""" + Name.first\_name.toLowerCase + “”"",“age”:""" + ThreadLocalRandom.current().nextInt(10, 80) + “”"}"""))
.check(regex(“Created”))
)
`
Good luck!
Adam
---
### Author:  [@Peter](https://community.gatling.io/u/Peter)
#### Post date: [March 20, 2017, 1:33pm UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/3 "2017-03-20T13:33:20Z")
Hi Adam,
Thanks a lot for the reply. It worked but stuck in another situation. I am facing issues with fetching assetId, it prints ‘assetId’ instead of value. Please have a look below code.
`
.foreach("${IdList}", “assetid”) {
exec(http(“Load\_Asset\_Details”)
.get(s"""$addTagsUrl/am/images/loader.svg""")
.resources(
http(“Actions\_request”)
.post(s"""$addTagsUrl/am/actions""")
.headers(headers\_52)
.body(StringBody("""{“objects”:[{“id”:${assetid},“resource”:“asset”}]}""")),
http(“variant\_request”)
.get(s"""$addTagsUrl/am/variants%3BresourceType=asset""")
.headers(headers\_6),
http(“Keyframe\_request”)
.get(s"""$addTagsUrl/am/$${assetid}/keyframes""")
.headers(headers\_6)))
.exec(http(“Add Tags”)
.post(s"""$addTagsUrl/am/$${assetid}/tags""")
.headers(headers\_52)
**//This prints value of assetid but does not generates random numbers**
**//.body(StringBody(s"""{“objectId”:$${assetid},“objectType”:“asset”,“name”:** “$tagName$randomNumber”,“accountId”:4,“userId”:5}"""))
**// This generates random numbers but Doesnt assetid it prints “assetid” text instead of value**
.body(StringBody(\_ =\> “”"{“objectId”:"""" + assetid + “”"" ,“objectType”:“asset”,“name”: “”" + tagName + ThreadLocalRandom.current().nextInt(10, 80) + “”",“accountId”:4,“userId”:5}"""))
)
}
`
---
### Author:  [@Artajew\_Adam](https://community.gatling.io/u/Artajew_Adam)
#### Post date: [March 20, 2017, 2:03pm UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/4 "2017-03-20T14:03:52Z")
Hi Peter,
this is an easy one 🙂 Please read the docs here to find out how to extract session variables:
[http://gatling.io/docs/current/session/expression\_el/](http://gatling.io/docs/current/session/expression_el/)
Quick hint:
`
```auto
request("page").get("/foo? **${bar}**")
```
`
---
### Author:  [@Peter](https://community.gatling.io/u/Peter)
#### Post date: [March 20, 2017, 2:42pm UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/5 "2017-03-20T14:42:05Z")
Hi Adam,
I tried with
`
{“objectId”: “${assetid}”…
`
**but fails.**
What i have writter is:
`
.body(StringBody(\_ =\> “”"{“objectId”: “${assetid}”,“objectType”:“asset”,“name”: “”" + tagName + ThreadLocalRandom.current().nextInt(10, 20) + “”",“accountId”:4,“userId”:5}"""))
`
Can you please help? what is needed to fetch the value of assetid here ☹
Thanks.
---
### Author:  [@Artajew\_Adam](https://community.gatling.io/u/Artajew_Adam)
#### Post date: [March 20, 2017, 3:35pm UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/6 "2017-03-20T15:35:11Z")
Yes, you’re right - you can’t use expression language within lambda. Please try to extract it “manually”, like in this example:
`
body(StringBody(session =\> “{username: '” + session(“username”).as[String] + “’}”))
`
Cheers,
Adam
---
### Author:  [@Peter](https://community.gatling.io/u/Peter)
#### Post date: [March 20, 2017, 4:07pm UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/7 "2017-03-20T16:07:26Z")
Understood. Thanks adam for the reply.
Worked…
`.body(StringBody(session => s"""{"objectId": """ + session("assetid").as[String] + """ ,"objectType":"asset","name": """" + tagName + ThreadLocalRandom.current().nextInt(10000) + """","accountId":4,"userId":5}"""))`
---
### Author:  [@Bhaskar\_Mishra](https://community.gatling.io/u/Bhaskar_Mishra)
#### Post date: [March 22, 2017, 10:18am UTC](https://community.gatling.io/t/script-uses-same-name-everytime-for-multiple-requests-instead-of-using-different-name-per-request/3614/8 "2017-03-22T10:18:21Z")
You seem to have solved the problem. I am having a similar issue here :
[https://groups.google.com/forum/#!topic/gatling/ygUwWJsNJXE](https://groups.google.com/forum/#!topic/gatling/ygUwWJsNJXE)
Can you please shed some light over it. I construct my JSON payload and pass it as a string. Here is my code:
`
`
object GetPayloadData {}
def getSomeData(): String = {
// I am using Json4s to handle json.
val r = scala.util.Random
val lines = scala.io.Source.fromFile(“src/test/resources/bodies/SomeJson.json”).mkString
val Json = parse(lines).transformField {
case (“startDate”, date) =\> (“startDate”, LocalDate.now().toString() + “T00:00:00-07:00”)
case (“endDate”, endDate) =\> (“endDate”, LocalDate.now().plusDays(r.nextInt(100000)).toString() + “T00:00:00-07:00”)
case (“numOfAdults”, numOfAdults) =\> (“numOfAdults”, r.nextInt(100)) //I use scala utils random to get these values
case (“numOfWhatver”, numOfChildren) =\> (“numOfWhatever”, r.nextInt(100))
}
return (compact(render(Json)))
}
}
class SearchSimulation extends Simulation {
val Search\_Api\_Json = “SimpleSearch.json”
val searchPayLoad = new GetPayloadData
val httpConf = http
.acceptHeader(“text/html,application/xhtml+xml,application/xml;q=0.9,_/_;q=0.8”) // Here are the common headers
.acceptEncodingHeader(“gzip, deflate”)
.acceptLanguageHeader(“en-US,en;q=0.5”)
.userAgentHeader(“Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:16.0) Gecko/20100101 Firefox/16.0”)
val scn = scenario(“SearchDataLoading”) // A scenario is a chain of requests and pauses
.exec(http(“Search\_Request”) // Here’s an example of a POST request
.post(“[http://some/uri/gatling.search](http://some/uri/gatling.search)”)
.body(StringBody(searchPayLoad.getSomeData())).asJSON
.check(status.is(200)))
setUp(
scn.inject(
atOnceUsers(10), // 2
rampUsers(600) over (60 seconds) // 3
))
}
`
`