May i use jsonStringify() method on List<String>?

Question

I'm trying to make custom body with the result of previous response as a list of strings. So it is a List which is stored as session variable. May i use jsonStringify() method on this session variable? When i use it as is, i've got that JSON is not valid because it pastes list without brackets.

Example:

.body(StringBody(
                """
                {
                    "id": "$id",
                    "items": $items
                }
            """.trimIndent()

It sends [item1, item2] instead of ["item1", "item2"]

I've done this by lambda but i think that was not really good.

.body(StringBody{
                session ->
                val items = session.get<List<String>>("items")?.map { "\"$it\"" }
                val id = session.getString("id")?: "unknown"
                """
                {
                    "id": "$id",
                    "items": $items
                }
            """.trimIndent()

Answer 1

Yes you can. Proof: https://github.com/gatling/gatling/blob/main/gatling-core/src/test/scala/io/gatling/core/json/JsonSpec.scala#L73-L76

(some blah blah to meet SoF's 30 chars requirement)