public TaxResult GetTax(TaxRequest request)
{
string url = "https://api.taxjar.com/sales_tax?amount=" + request.Amount
+ "&shipping=" + request.Shipping
+ "&to_country=" + request.ToCountry
+ "&to_state=" + request.ToState
+ "&to_city=" + request.ToCity
+ "&to_zip=" + request.ToZip;
JObject response = MakeTaxJarApiRequest(url);
var result = new TaxResult();
try
{
result.TotalTax = (decimal) response["amount_to_collect"];
result.Rate = (decimal) response["rate"];
result.HasNexus = (bool) response["has_nexus"];
if (response["freight_taxable"].HasValues)
result.FreightTaxable = (bool) response["freight_taxable"];
if (response["tax_source"].HasValues)
result.TaxSource = (string) response["tax_source"];
result.Success = true;
}
catch
{
result.Success = false;
}
return result;
}
public TaxResult GetTax(TaxRequest request)
{
string url = "https://api.taxjar.com/sales_tax?amount=" + request.Amount
+ "&shipping=" + request.Shipping
+ "&to_country=" + request.ToCountry
+ "&to_state=" + request.ToState
+ "&to_city=" + request.ToCity
+ "&to_zip=" + request.ToZip;
JObject response = MakeTaxJarApiRequest(url);
var result = new TaxResult();
try
{
result.TotalTax = (decimal)response["amount_to_collect"];
result.Rate = (decimal)response["rate"];
result.HasNexus = (bool)response["has_nexus"];
if (response["freight_taxable"].HasValues)
{
result.FreightTaxable = (bool)response["freight_taxable"];
}
if (response["tax_source"].HasValues)
{
result.TaxSource = (string)response["tax_source"];
}
result.Success = true;
}
catch
{
result.Success = false;
}
return(result);
}
public Task <TaxResult> GetTaxRate(TaxRequest calculateTaxRequest)
{
var result = new TaxResult {
TaxRate = GetTaxRate(calculateTaxRequest.TaxCategoryId)
};
return(Task.FromResult(result));
}
public TaxResult GetTaxResultForOrder(decimal amount, decimal shippingAmount, string taxApiEndpointUrl, string taxJarApiKey, string taxRequestJsonString)
{
var taxRate = GetTaxRateForLocation(taxApiEndpointUrl, taxJarApiKey, taxRequestJsonString);
var taxAmount = (amount + shippingAmount) * taxRate;
TaxResult taxResult = new TaxResult();
taxResult.TaxRate = taxRate;
taxResult.TaxAmount = taxAmount;
return(taxResult);
}
/// <summary>
/// Gets a <see cref="HttpWebResponse"/> from the API.
/// </summary>
/// <param name="requestUrl">
/// The request url.
/// </param>
/// <param name="data">
/// The data.
/// </param>
/// <param name="requestMethod">The request method</param>
/// <returns>
/// The <see cref="HttpWebResponse"/>.
/// </returns>
internal string GetResponse(string requestUrl, string data = "", RequestMethod requestMethod = RequestMethod.HttpGet)
{
try
{
var address = new Uri(requestUrl);
var request = WebRequest.Create(address) as HttpWebRequest;
//// Add Authorization header
var pair = Encoding.ASCII.GetBytes(string.Format("{0}:{1}", _accountNumber, _licenseKey));
var basic = string.Format("Basic {0}", Convert.ToBase64String(pair));
request.Headers.Add(HttpRequestHeader.Authorization, basic);
if (requestMethod == RequestMethod.HttpPost)
{
request.Method = "POST";
request.ContentType = "application/json";
request.ContentLength = data.Length;
var s = request.GetRequestStream();
s.Write(Encoding.ASCII.GetBytes(data), 0, data.Length);
}
else
{
request.Method = "GET";
}
var response = request.GetResponse();
using (var sr = new StreamReader(response.GetResponseStream()))
{
return(sr.ReadToEnd());
}
}
catch (Exception ex)
{
LogHelper.Error <AvaTaxService>("AvaTax API Failure", ex);
var result = new TaxResult()
{
ResultCode = SeverityLevel.Exception,
Messages = new[]
{
new ApiResponseMessage()
{
Details = ex.Message, Source = typeof(AvaTaxService).Name, RefersTo = "GetTax", Severity = SeverityLevel.Exception
}
}
};
return(JsonConvert.SerializeObject(result));
}
}
public TaxResult GetTaxResultForOrder(TaxRequest taxRequest)
{
// API Credentials in config file
var taxApiEndpointUrl = WebConfigurationManager.AppSettings["TaxApiEndpointUrl"];
var taxJarApiKey = WebConfigurationManager.AppSettings["TaxJarApiKey"];
// API expects TaxRequest as JSON string
var taxRequestJsonString = JsonConvert.SerializeObject(taxRequest);
TaxResult taxResult = new TaxResult();
// Instantiate TaxJar Tax Calculator
TaxCalculator taxJarTaxCalculator = new TaxCalculator();
// Call TaxCalculator application
taxResult = taxJarTaxCalculator.GetTaxResultForOrder(taxRequest.Amount, taxRequest.ShippingAmount, taxApiEndpointUrl, taxJarApiKey, taxRequestJsonString);
return(taxResult);
}
private TaxResult CreateTaxResult(TaxRequest request)
{
var result = new TaxResult();
result.Dates = request.PassagesThroughCustoms
.Where(a => !DateIsTaxFree(a))
.GroupBy(a => a.Date)
.Select(a =>
new DateOfPassage()
{
Date = a.Key.ToString("yyyy/MM/dd"),
Occasions = a.Select(a => a.ToString("HH:mm")).ToList(),
Tax = GetDayTax(a)
})
.ToList();
result.IsTaxPayingVehicle = true;
return(result);
}
public void GetTaxResultForOrder()
{
// Arrange
TaxServiceController controller = new TaxServiceController();
// Act
// Verify tax rate is successfully returned with valid query
TaxResult result = controller.GetTaxResultForOrder(new TaxRequest()
{
FromCountry = "US",
FromState = "NY",
FromCity = "New York",
FromZip = "10003",
Amount = 100,
ShippingAmount = 0,
ToCountry = "US",
ToState = "CT",
ToZip = "06877",
NexusAddresses = new List <NexusAddress>()
{
new NexusAddress
{
Country = "US",
State = "NY",
ZipCode = "10003"
},
new NexusAddress
{
Country = "US",
State = "CT",
ZipCode = "06877"
}
}
});
// Assert
// Valid query
Assert.IsNotNull(result);
// Object returned is of type TaxResult
Assert.IsTrue(result.GetType() == typeof(TaxResult));
}
private static async Task <TaxResult> GetTaxAsync(int id)
{
var client = new HttpClient();
client.BaseAddress = new Uri(taxUrl);
string result;
TaxResult tax = null;
HttpResponseMessage response = await client.GetAsync(string.Empty + id);
if (response.IsSuccessStatusCode)
{
result = await response.Content.ReadAsStringAsync();
tax = JsonConvert.DeserializeObject <TaxResult>(result);
}
else
{
Console.WriteLine("Get tax failed for ID " + id + " with error " + response.ReasonPhrase);
}
return(tax);
}
public void GetTaxResultForOrder()
{
// Arrange
TaxCalculator taxCalculator = new TaxCalculator();
// Act
// Verify valid TaxResult is returned to page
TaxResult result = taxCalculator.GetTaxResultForOrder(100, 0, "https://api.taxjar.com/v2/taxes", "5da2f821eee4035db4771edab942a4cc", "{\"from_country\":\"US\",\"from_zip\":\"10003\",\"from_state\":\"NY\",\"from_city\":\"New York\",\"from_street\":null,\"to_country\":\"US\",\"to_zip\":\"06877\",\"to_state\":\"CT\",\"amount\":100.0,\"shipping\":0.0,\"nexus_addresses\":[{\"country\":\"US\",\"state\":\"NY\",\"zip\":\"10003\"},{\"country\":\"US\",\"state\":\"CT\",\"zip\":\"06877\"}]}");
// Verify no error is generated when query with state/zicode mismatch
TaxResult resultStateZipMismatch = taxCalculator.GetTaxResultForOrder(100, 0, "https://api.taxjar.com/v2/taxes", "5da2f821eee4035db4771edab942a4cc", "{\"from_country\":\"US\",\"from_zip\":\"10003\",\"from_state\":\"NY\",\"from_city\":\"New York\",\"from_street\":null,\"to_country\":\"US\",\"to_zip\":\"10590\",\"to_state\":\"CT\",\"amount\":100.0,\"shipping\":0.0,\"nexus_addresses\":[{\"country\":\"US\",\"state\":\"NY\",\"zip\":\"10003\"},{\"country\":\"US\",\"state\":\"CT\",\"zip\":\"10590\"}]}");
// Assert
// Valid TaxResult
Assert.IsNotNull(result);
// Object returned is of type TaxResult
Assert.IsTrue(result.GetType() == typeof(TaxResult));
// State/Zipcode mismatch
Assert.IsNotNull(resultStateZipMismatch);
}
public Decimal GetTaxRateForLocation(string taxApiEndpointUrl, string taxJarApiKey, string taxRequestJsonString)
{
TaxResult taxResult = new TaxResult();
var taxRate = 0.00M;
try
{
// Send request to TaxJar Sales Tax API
var client = new RestClient(taxApiEndpointUrl);
client.Timeout = -1;
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Token token=\"" + taxJarApiKey + "\"");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", taxRequestJsonString, ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
var data = (JObject)JsonConvert.DeserializeObject(response.Content);
// check for error result
// i.e. due to bad request (zipcode and state mismatch)
if (data["tax"] == null && data["error"] != null)
{
// Log Error
Console.Write(string.Format("Error result received from TaxJar Sales Tax API. Request: {0}", taxRequestJsonString));
return(-1);
}
// assign taxRate
taxRate = data["tax"]["rate"].Value <decimal>();
}
catch
{
// Log Error
Console.Write(string.Format("Error trying to call TaxJar Sales Tax API. Request: {0}", taxRequestJsonString));
}
return(taxRate);
}
protected void Page_Load(object sender, EventArgs e)
{
ITaxResult TaxResultObj = null;
try
{
Cart CartObj = new JavaScriptSerializer().Deserialize <Cart>(CookieProxy.Instance().GetValue("Cart").ToString());
IAddress AddressObj = new Address(int.Parse(Request.Form["aid"].ToString()));
IUserProfile UserProfileObj = new UserProfile(CookieProxy.Instance().GetValue("t").ToString());
TaxResultObj = new TaxManagement().CalculateTaxFromCartItems(CartObj, AddressObj, UserProfileObj);
}
catch (Exception)
{
TaxResultObj = new TaxResult(false);
}
finally
{
var ResultObj = new
{
Response = TaxResultObj
};
Response.Write(new JavaScriptSerializer().Serialize(ResultObj));
}
}
/// <summary>
/// Gets tax rate
/// </summary>
/// <param name="calculateTaxRequest">Tax calculation request</param>
/// <returns>Tax</returns>
public async Task <TaxResult> GetTaxRate(TaxRequest calculateTaxRequest)
{
var result = new TaxResult();
if (calculateTaxRequest.Address == null)
{
result.Errors.Add("Address is not set");
return(result);
}
const string cacheKey = ModelCacheEventConsumer.ALL_TAX_RATES_MODEL_KEY;
var allTaxRates = await _cacheBase.GetAsync(cacheKey, async() =>
{
var taxes = await _taxRateService.GetAllTaxRates();
return(taxes.Select(x => new TaxRateForCaching
{
Id = x.Id,
StoreId = x.StoreId,
TaxCategoryId = x.TaxCategoryId,
CountryId = x.CountryId,
StateProvinceId = x.StateProvinceId,
Zip = x.Zip,
Percentage = x.Percentage
}));
});
var storeId = _workContext.CurrentStore.Id;
var taxCategoryId = calculateTaxRequest.TaxCategoryId;
var countryId = calculateTaxRequest.Address.CountryId;
var stateProvinceId = calculateTaxRequest.Address.StateProvinceId;
var zip = calculateTaxRequest.Address.ZipPostalCode;
if (zip == null)
{
zip = string.Empty;
}
zip = zip.Trim();
var existingRates = allTaxRates.Where(taxRate => taxRate.CountryId == countryId && taxRate.TaxCategoryId == taxCategoryId).ToList();
//filter by store
var matchedByStore = existingRates.Where(taxRate => storeId == taxRate.StoreId).ToList();
//not found? use the default ones (ID == 0)
if (!matchedByStore.Any())
{
matchedByStore.AddRange(existingRates.Where(taxRate => string.IsNullOrEmpty(taxRate.StoreId)));
}
//filter by state/province
var matchedByStateProvince = matchedByStore.Where(taxRate => stateProvinceId == taxRate.StateProvinceId).ToList();
//not found? use the default ones (ID == 0)
if (!matchedByStateProvince.Any())
{
matchedByStateProvince.AddRange(matchedByStore.Where(taxRate => string.IsNullOrEmpty(taxRate.StateProvinceId)));
}
//filter by zip
var matchedByZip = matchedByStateProvince.Where(taxRate => (string.IsNullOrEmpty(zip) && string.IsNullOrEmpty(taxRate.Zip)) || zip.Equals(taxRate.Zip, StringComparison.OrdinalIgnoreCase)).ToList();
if (!matchedByZip.Any())
{
matchedByZip.AddRange(matchedByStateProvince.Where(taxRate => string.IsNullOrWhiteSpace(taxRate.Zip)));
}
if (matchedByZip.Any())
{
result.TaxRate = matchedByZip[0].Percentage;
}
return(result);
}
/// <summary>
/// Gets a <see cref="HttpWebResponse"/> from the API.
/// </summary>
/// <param name="requestUrl">
/// The request url.
/// </param>
/// <param name="data">
/// The data.
/// </param>
/// <param name="requestMethod">The request method</param>
/// <returns>
/// The <see cref="HttpWebResponse"/>.
/// </returns>
internal string GetResponse(string requestUrl, string data = "", RequestMethod requestMethod = RequestMethod.HttpGet)
{
try
{
var address = new Uri(requestUrl);
var request = WebRequest.Create(address) as HttpWebRequest;
//// Add Authorization header
var pair = Encoding.ASCII.GetBytes(string.Format("{0}:{1}", _accountNumber, _licenseKey));
var basic = string.Format("Basic {0}", Convert.ToBase64String(pair));
request.Headers.Add(HttpRequestHeader.Authorization, basic);
if (requestMethod == RequestMethod.HttpPost)
{
request.Method = "POST";
request.ContentType = "application/json";
request.ContentLength = data.Length;
var s = request.GetRequestStream();
s.Write(Encoding.ASCII.GetBytes(data), 0, data.Length);
}
else
{
request.Method = "GET";
}
var response = request.GetResponse();
using (var sr = new StreamReader(response.GetResponseStream()))
{
return sr.ReadToEnd();
}
}
catch (Exception ex)
{
LogHelper.Error<AvaTaxService>("AvaTax API Failure", ex);
var result = new TaxResult()
{
ResultCode = SeverityLevel.Exception,
Messages = new[]
{
new ApiResponseMessage() { Details = ex.Message, Source = typeof(AvaTaxService).Name, RefersTo = "GetTax", Severity = SeverityLevel.Exception }
}
};
return JsonConvert.SerializeObject(result);
}
}