func logIn(user: String, pass: String) {
    do {
        let opt = try HTTP.GET(apiURL + "/users")
        opt.start { response in
            if let err = response.error {
                print("error: (err.localizedDescription)")
                return //also notify app of failure as needed
            }

            //HERE I NEED TO TAKE THE DATA AND STORE IT IN THE VARIABLES SO I CAN == WITH THE ARGUMENTS OF THE FUNCTION.

        }
    } catch let error {
        print("got an error creating the request: (error)")
    }
}