GrandTrunk Currency API in C#

Today I just finished a client API for the GrandTrunk historic currency conversion web service.

The web service allows the following:

• Getting a list of the supported currencies according to a specified date
• Converting a currency to another according to the rate of a specified date
• Retrieving a list of conversion rates between 2 currencies according to a specified time interval.

If you are interested in using it, you can find it on Github.

Here's how you can use it:

	using System;
	using System.Collections.Generic;
	using IsKernel.Api.Pool.Currency;
	namespace GrandTrunkCurrenciesApiExample
	{
	class Program
	{
	public static void Main(string[] args)
	{
	DateTime olderDate = new DateTime(1997,3,1);
	DateTime startDate = new DateTime(2011,3,1);
	DateTime stopDate = new DateTime(2011,5,1);
	//List of supported currencies at this momment
	Console.WriteLine("List of supported currencies at this moment: ");
	List<string> listOfCurrencies
	= GrandTrunkCurrencyConversionService
	.Instance.GetListOfSupportedCurrencies();
	DisplayList(listOfCurrencies);
	//List of supported currencies in 01-03-1997
	Console.WriteLine("List of supported currencies in 01-03-1997: ");
	List<string> olderListOfCurrencies
	= GrandTrunkCurrencyConversionService
	.Instance.GetListOfSupportedCurrencies(olderDate);
	DisplayList(olderListOfCurrencies);
	//The USD (US Dollar) - AUD (Australian Dollar) rate today
	Console.WriteLine("The USD-AUD rate today");
	ConversionRate usdToAud = GrandTrunkCurrencyConversionService
	.Instance
	.GetConversionRate("USD","AUD");
	Console.WriteLine("In {0} : 1 {1} = {3} {2}",
	usdToAud.Date,
	usdToAud.FromCurrency,
	usdToAud.ToCurrency,
	usdToAud.Rate);
	//The USD (US Dollar) - AUD (Australian Dollar) rate in 01-03-1997
	Console.WriteLine("The USD-AUD rate in 01-03-1997");
	ConversionRate olderUsdToAud = GrandTrunkCurrencyConversionService
	.Instance
	.GetConversionRate("USD","AUD",
	olderDate);
	Console.WriteLine("In {0} : 1 {1} = {3} {2}",
	olderUsdToAud.Date,
	olderUsdToAud.FromCurrency,
	olderUsdToAud.ToCurrency,
	olderUsdToAud.Rate);
	//The USD (US Dollar) - AUD (Australian Dollar) rate between
	//01.03.2011 - 01.05.2011
	Console.WriteLine("The USD-AUD rate between 01-03-2011 and " +
	"01-05-2011");
	List<ConversionRate> conversionRateList
	= GrandTrunkCurrencyConversionService.Instance
	.GetConversionRate("USD","AUD", startDate, stopDate);
	DisplayConversionList(conversionRateList);
	Console.Read();
	}
	private static void DisplayList(List<string> list)
	{
	foreach (string element in list)
	{
	Console.WriteLine(element);
	}
	}
	private static void DisplayConversionList(List<ConversionRate> list)
	{
	foreach (ConversionRate element in list)
	{
	Console.WriteLine("In {0} : 1 {1} = {3} {2}",
	element.Date,
	element.FromCurrency,
	element.ToCurrency,
	element.Rate);
	}
	}
	}
	}

view raw CSharp_GrandTrunkCurrencyConversionApi_Example.cs hosted with ❤ by GitHub

You can find the library on:

Github

Q: Do you know other free web services which provide similar features? Leave me a link!

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