public ClientResponse VerifyIfClientIsValid(ClientModel client) { _regex = new RegexValidation(); if (!_regex.ValidateCnpj(client.Cnpj)) { return new ClientResponse() { Success = false, Message = "Invalid Cnpj format." } } ; if (!_regex.ValidatePhone(client.Phone)) { return new ClientResponse() { Success = false, Message = "Phone format invalid." } } ; return(new ClientResponse() { Success = true, Message = string.Empty }); }