capturing value

Perhaps I’m just blind. What color value?

I believe you want to extract header values of : Via: [1.1 qa-oag-node3.las.virtualdreamworks.com ()], Location: [https://qa-dsp.dreamworks.com/api/v1/UserService/users/54587a900cf25e
1bb696c2a3], X-dsp-poolmbr: [10.205.49.127:8080]

Its part of the checks. here is the link to documentation.

http://gatling.io/docs/2.0.2/http/http_check.html?#http-header

You won’t see the Location header if followRedirect is enabled (default).
Consider this: http://gatling.io/docs/2.0.2/http/http_check.html#page-location