Extracting data from a web service

In this recipe, we will extract data from a free, public web service.

How to do it...

Let's explore how to access and retrieve data from a web service.

1. Open PowerShell ISE. Go to Start | Accessories | Windows PowerShell | Windows PowerShell ISE.

2. Add the following script and run it:

   #delayed stock quote URI
   $stockUri = "http://ws.cdyne.com/delayedstockquote/delayedstockquote.asmx"
   
   $stockproxy = New-WebServiceProxy -Uri $stockUri -UseDefaultCredential 
   
   #get quote
   $stockresult = $stockProxy.GetQuote("MSFT","")
   
   #display results
   $stockresult.StockSymbol
   $stockresult.DayHigh
   $stockresult.DayLow
   $stockresult.LastTradeDateTime

How it works...

To work with a web service, we first need to create a proxy object that will allow us to access the methods available from a web service. We can achieve this by using the New-WebProxy cmdlet, which accepts the web service URL.

$stockUri = "http://ws.cdyne.com/delayedstockquote/delayedstockquote.asmx"

This URI points to a free...