# Random values not selected in the request

**URL:** https://community.gatling.io/t/random-values-not-selected-in-the-request/7039
**Category:** Gatling (Open-Source)
**Tags:** gatling-academy
**Created:** [August 9, 2022, 6:40am UTC](https://community.gatling.io/t/random-values-not-selected-in-the-request/7039 "2022-08-09T06:40:42Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Guruprasad](https://avatars.discourse-cdn.com/v4/letter/g/a88e4f/32.png) [@Guruprasad](https://community.gatling.io/u/Guruprasad)
#### Post date: [August 9, 2022, 6:40am UTC](https://community.gatling.io/t/random-values-not-selected-in-the-request/7039/1 "2022-08-09T06:40:42Z")

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I have created a sequence containing string values as below:

val possibleScope: Seq[String] = Seq(“full%20scope”, “simple%20scope”)val possibleFeature: Seq[String] = Seq(“IR\_P\_WI”, “IR\_S\_WI”, “GK\_W\_WI”, “GK\_C\_WI”, “ZUL\_BEZ”)

I have created a function to select one of the values randomly.  
def randomSelectionOfListedItems(listOfString:Seq[String]) : String = {  
val random = new Random()  
listOfString(random.nextInt(listOfString.length))  
}

I have the scenario builder formed as below. I am calling the function to generate a random value to form the request URL:  
.get(s"/ct-vt-transformer-dev-service/devicedata/query?factory=Frankfurt&scope=**${randomSelectionOfListedItems(possibleScope)}**&feature=**${randomSelectionOfListedItems(possibleFeature)}**

Then i ramp up the users as below:  
setUp(  
httpScenario.inject(  
rampUsers(5) during 10.seconds,  
rampUsers(5) during 10.seconds,  
rampUsers(5) during 10.seconds  
)  
).protocols(httpConfig)

The problem that i am facing is, the URL is same for all the requests that are being generated. What is the mistake that i am doing here?

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<div class="post-metadata">

### Author: ![Guruprasad](https://avatars.discourse-cdn.com/v4/letter/g/a88e4f/32.png) [@Guruprasad](https://community.gatling.io/u/Guruprasad)
#### Post date: [August 9, 2022, 6:55am UTC](https://community.gatling.io/t/random-values-not-selected-in-the-request/7039/2 "2022-08-09T06:55:35Z")

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I figured it out right after posting the question here. This is the change i made:

.get(_session =\>_ s"/ct-vt-transformer-dev-service/devicedata/query?factory=Frankfurt&scope=**${randomSelectionOfListedItems(possibleScope)}**&feature=**${randomSelectionOfListedItems(possibleFeature)}**

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### Author: ![slandelle](https://dub1.discourse-cdn.com/flex013/user_avatar/community.gatling.io/slandelle/32/4_2.png) [@slandelle](https://community.gatling.io/u/slandelle)
#### Post date: [August 9, 2022, 7:41am UTC](https://community.gatling.io/t/random-values-not-selected-in-the-request/7039/3 "2022-08-09T07:41:27Z")

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Glad you figured it out yourself. Indeed, you have to wrap in a function, otherwise the value is only computed once when loading the simulation.