So what I do is I record the network tab in chrome dev tools, then I save it as HAR file, after that I convert it to Gatling Scala class through Gatling recorder,
As you see on the screenshot the /authorize request is the request_3, that was the one that returns me a sessionToken 
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apparently that sessionToken is not a good one since when I pass on next request when I sign in it returns this : {“errorCode”:“E0000011”,“errorSummary”:“Invalid token provided”,“errorLink”:“E0000011”,“errorId”:“oaeSyalNNrqTlexEHDrFDva5A”,“errorCauses”:}
