public TaxRatesInfo TaxRatesForLocation(TaxLocationInfo locationInfo)
{
if (string.IsNullOrWhiteSpace(locationInfo.ZipCode))
{
throw new ArgumentException("The Location's zipcode is required", nameof(locationInfo.ZipCode));
}
using (var client = clientFactory.CreateClient("TaxJar"))
{
try
{
var response = client.GetAsync($"rates/{locationInfo.ZipCode}?{locationInfo.ToQueryString()}")
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
if (response.IsSuccessStatusCode)
{
var result = ParseJsonResponseIntoAnonymousType(response, new { rate = new TaxJarRates() });
return(result.rate.ToTaxRatesInfo());
}
// ToDo: log the error/warning
return(null);
}
catch (Exception)
{
// logging should be added here
// I decided to swallow the exeption instead of bubling it up
// this might change depending on how we want to wire the service
// to deal with it
return(null);
}
}
}
public static string ToQueryString(this TaxLocationInfo locationInfo)
{
var dictionary = new Dictionary <string, object>
{
["country"] = locationInfo.Country,
["state"] = locationInfo.State,
["city"] = locationInfo.City,
["street"] = locationInfo.Street
};
return(dictionary.ToQueryString());
}
public void SetUp()
{
clientFactory = new Mock <IHttpClientFactory>();
validOrder = new OrderInfo
{
Amount = 25m,
ExemptionType = ExemptionType.Marketplace,
CustomerId = "customer1",
Shipping = 32m,
From = new Address
{
Country = "US",
State = "NJ",
ZipCode = "07001"
},
To = new Address
{
Country = "US",
State = "Florida",
ZipCode = "33155"
},
NexusAddresses = new NexusAddress[]
{
new NexusAddress
{
Id = "Nexus1",
Country = "US",
State = "FL",
ZipCode = "32801"
}
},
LineItems = new LineItem[]
{
new LineItem
{
Id = "Line1",
UnitPrice = 15m,
Quantity = 2,
Discount = 5m,
ProductTaxCode = "Code1"
}
}
};
validLocation = new TaxLocationInfo
{
City = "Miami",
Country = "US",
State = "FL",
ZipCode = "33193"
};
}
public void TaxRatesCallsTaxCalculator()
{
var mockMethodCalled = false;
var mock = new Mock <ITaxCalculator>();
mock.Setup(calculator => calculator.TaxRatesForLocation(It.IsAny <TaxLocationInfo>())).Callback(() => mockMethodCalled = true);
var service = new TaxService(mock.Object);
var location = new TaxLocationInfo();
service.TaxRatesForLocation(location);
Assert.IsTrue(mockMethodCalled);
}
static void Main(string[] args)
{
BuildConfiguration();
ConfigureServices();
var calculator = ServiceProvider.GetService <ITaxCalculator>();
var locationInfo = new TaxLocationInfo
{
Country = "US",
City = "Santa Monica",
ZipCode = "90404"
};
var orderInfo = new OrderInfo
{
From = new Address
{
Country = "US",
State = "NJ",
ZipCode = "07001"
},
To = new Address
{
Country = "US",
State = "NJ",
ZipCode = "07446"
},
Amount = 16.5m,
Shipping = 1.5m,
LineItems = new[]
{
new LineItem
{
Quantity = 1,
UnitPrice = 15m,
ProductTaxCode = "31000"
}
}
};
var rates = calculator.TaxRatesForLocation(locationInfo);
Console.WriteLine(rates.StateRate);
var taxes = calculator.CalculateTaxesForOrder(orderInfo);
Console.WriteLine(taxes.AmountToCollect);
System.Console.ReadLine();
}
public TaxRatesInfo TaxRatesForLocation(TaxLocationInfo locationInfo)
{
return(taxCalculator.TaxRatesForLocation(locationInfo));
}
