Fun with powershell. Show the current coin price with a single command.

Like some of you I own more cryptocoins and I check out the website coinmarketcap often. But sometimes I just want to check out the price fast. I use a Telegram Bot for that.

The Telegram Bot is able to kick off scripts (after I give the command /cryptocoinprice) and give me the results back on my phone. In my case I made a Powershell function that uses the API from coinmarketcap to give the info to my Telegram bot.

Ofcourse you do not have to run a Telegram bot to use this script(function). You can run it just from your windows pc.

If you do supply a specific coin it will just give you the current top 10 coins with the price in US dollar.

PS C:\Users\You\Desktop> .\CryptoCoinPrice
$0.456817
Bitcoin $611.677
Ethereum $13.3372
Ripple $0.00818912
Litecoin $3.83656
Monero $7.87139
Ethereum Classic $1.1691
Dash $12.1663
Steem $0.456817
MaidSafeCoin $0.0854529

And if you want to know the price of Steem for example, you do

PS C:\Users\You\Desktop>.\CryptoCoinPrice steem
$0.456817

Below the script(function).
Just put it in notepad and save it with the extension .ps1

# 2016 Disofdis
Function CryptoCoinPrice
{

Param(
    [parameter(Mandatory=$false)]
    [string]
    $variable
)

$coins = Invoke-RestMethod -Method Get -Uri “https://api.coinmarketcap.com/v1/ticker/”

If ($variable -eq "")
{

ForEach ($coin in $coins)
    {
    [int]$rank = $coin.rank
    If ($rank -lt "10")
        {
        $coin.name + " $" + $coin.price_usd
        }
   }
}
else
{

ForEach ($coin in $coins)
    {
    If ($coin.id -eq "$variable")
        {
        "$" + $coin.price_usd
        }
    }
}
}
CryptoCoinPrice

There is a piece of code left that you can use to make giving a coin name mandatory before running the script.

[parameter(Mandatory=$false)]

You can put this on true to enable it. Of delete the complete line if you do not want to use ever. Or well just let it stand there :P
Have fun with it :-)

ps you can also make it a psm1 file, so you can run the command all the time. https://msdn.microsoft.com/en-us/library/dd878350(v=vs.85).aspx