public async Task <District> AddDistrict(InsertDistrictDto input)
{
var country = await _countryService.GetByExpression(p => p.Code.Equals(input.CountryCode));
if (country == null)
{
throw new MyAppException
{
ErrorCode = MyCustomErrorCodes.COUNTRY_NOT_FOUND
};
}
return(await _districtService.CreateAsync(input, country));
}