Post req

Hi guys i’ve POST req. to API, which returns me a json. And I need to obtain one single atrubute from it, But i am getting error over and over.

val scn = scenario(“Acces token simulation”)
.exec(http(“request_0”)
.post("…")
.headers(headers_0)
.formParam(…)
.formParam(…)
.formParam(…))
.check(jsonPath("$.tokenId").saveAs(“tokenId”))

Only thing i need to save tokenId from returned json to tokenId prom, How can i do that pls?

can you post the actual response you get from your api?