protected async override Task <object> OnPerform()
        {
            var deleteContract = JsonConvert.SerializeObject(_contract);
            var content        = new StringContent(deleteContract, Encoding.UTF8, ApplicationJSON);
            var response       = await _fuelPumpRestClient.SaveBasePrices(content);

            var data = await response.Content.ReadAsStringAsync();

            switch (response.StatusCode)
            {
            case HttpStatusCode.OK:
                var contract = new DeSerializer().MapErrorWithCaption(data);
                return(new Mapper().MapErrorWithCaption(contract));

            case HttpStatusCode.Conflict:
                throw PumpsOfflineException(data);

            default:
                return(await HandleExceptions(response));
            }
        }