[NoBrainer] PowerShell Currency Converter

Convert-Currency.ps1

# http://d-fens.ch/2014/01/07/nobrainer-powershell-currency-converter/

Param (
	[Parameter(Mandatory = $true, Position = 0)]
	[string] $From
	,
	[Parameter(Mandatory = $true, Position = 1)]
	[string] $To
	,
	[Parameter(Mandatory = $false, Position = 2)]
	[Alias("Amount")]
	[double] $Value = 1
	,
	[Parameter(Mandatory = $false, Position = 3)]
	[Alias("When")]
	[DateTime] $Date = [datetime]::Now
) # Param

$UrlTemplate = 'http://www.oanda.com/currency/converter/update?base_currency_0={0}&quote_currency={1}&end_date={2}&view=details&id=1&action=C&';
[Uri] $Url = $UrlTemplate -f $From, $To, $Date.ToString('yyyy-MM-dd');
$r = Invoke-RestMethod -Uri $Url;
if($PSBoundParameters.ContainsKey('Value')) {
	($r.data.bid_ask_data | gm -Type Properties).Name | % { $r.data.bid_ask_data.$_ *= $Value; };
	for($c = 0; $c -lt $r.data.chart_data.Count; $c++) { $r.data.chart_data[$c][-1] *= $Value; };
} # if
$Currency = [Ordered] @{};
($r.data.bid_ask_data | gm -Type Properties).Name | % { $Currency.Add($_, $r.data.bid_ask_data.$_); };
# for($c = 0; $c -lt $r.data.chart_data.Count; $c++) { 
	# $dt = New-Object Datetime($r.data.chart_data[$c][0], $r.data.chart_data[$c][1], $r.data.chart_data[$c][2]);
	# $Currency.Add($dt.ToString('yyyy-MM-dd'), $r.data.chart_data[$c][-1]);
# } # for
return $Currency;