Extracting nested JSON with random function

Gatling (Open-Source)
1

Hey,

I have the following setup. I create a request which returns a JSON in the following format:

{
keyLayer1: value
collection: [{
keyLayer2: value,
collection: [{
keyLayer3: value
}]}]}

So I have nested collections. Now I want to save and reuse the value of the keyLayer3 but without specifying the collection indices. I would rather get a random element for each collection.

I did this

.check(jsonPath(“$. collection”).ofType[Seq[Any]].saveAs(“test”)))

and then for the other call I used the following to get the whole JSON item, but I then can’t extract more values or the collection inside the item.

${test.random()}

Any hints on how to extract the keyLayer3 by using random collection indices?

Thanks in advance.

2

findRandom in upcoming Gatling 3: https://github.com/gatling/gatling/issues/3088

We expect first release candidate next week.

3

Okay. sounds good.
But is there a way to achieve my goal with a workaround right now?

4

Okay, I got it working.

I now used the * operator more times in the jsonpath. This way, I could get many items from the json, which I then saved.
In later steps I took the saved value and used the random function on it. This worked fine.