, invitation_codes :: Array String

    , invitationCodes :: Array String

signupRequest username password recoverBy captchaToken invcodes = { username, password, recoverBy, captchaToken, invitation_codes: invcodes }

signupRequest username password recoverBy captchaToken invitationCodes = { username, password, recoverBy, captchaToken, invitationCodes}

          , invitation_codes: req.invitationCodes

      H.modify_ (_ { invitationCodes = split r codeStr })

          codes = split r codeStr 
      H.modify_ (_ { invitationCodes = codes })

          signupRequest <$> usernameV

          signupRequest 
            <$> usernameV