Add list-crypto-rates.ps1

Scripts/list-crypto-rates.ps1

@@ -0,0 +1,53 @@
+<#
+.SYNOPSIS
+	list-crypto-rates.ps1 
+.DESCRIPTION
+	Lists the current crypto exchange rates 
+.EXAMPLE
+	PS> .\list-crypto-rates.ps1
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author:  Markus Fleschutz
+	License: CC0
+#>
+
+function ListCryptoRate { param([string]$Symbol, [string]$Name)
+	$Rates = (invoke-webRequest -uri "https://min-api.cryptocompare.com/data/price?fsym=$Symbol&tsyms=USD,EUR,RUB,CNY" -userAgent "curl" -useBasicParsing).Content | ConvertFrom-Json
+	new-object PSObject -property @{ 'Cryptocurrency' = "1 $Name ($Symbol) ="; 'USD' = "$($Rates.USD)"; 'EUR' = "$($Rates.EUR)"; 'RUB' = "$($Rates.RUB)"; 'CNY' = "$($Rates.CNY)" }
+}
+
+function ListCryptoRates { 
+	ListCryptoRate BTC "Bitcoin"
+	ListCryptoRate ETH "Ethereum"
+	ListCryptoRate ADA "Cardano"
+	ListCryptoRate BNB "Binance Coin"
+	ListCryptoRate USDT "Tether"
+	ListCryptoRate XRP "XRP"
+	ListCryptoRate DOGE "Dogecoin"
+	ListCryptoRate USDC "USD Coin"
+	ListCryptoRate DOT "Polkadot"
+	ListCryptoRate SOL "Solana"
+	ListCryptoRate UNI "Uniswap"
+	ListCryptoRate BUSD "Binance USD"
+	ListCryptoRate BCH "Bitcoin Cash"
+	ListCryptoRate LTC "Litecoin"
+	ListCryptoRate LINK "Chainlink"
+	ListCryptoRate LUNA "Terra"
+	ListCryptoRate ICP "Internet Computer"
+	ListCryptoRate WBTC "Wrapped Bitcoin"
+	ListCryptoRate MATIC "Polygon"
+	ListCryptoRate XLM "Stellar"
+}
+
+try {
+	""
+	"Current Crypto Exchange Rates (source: cryptocompare.com)"
+	"============================="
+
+	ListCryptoRates | format-table -property @{e='Cryptocurrency';width=28},USD,EUR,RUB,CNY
+	exit 0
+} catch {
+	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}