Question

I am working on server side application of FB login.

Having converted the example here:

https://developers.facebook.com/docs/authentication/server-side/

To VB, and using System.Net.WebRequest.Create to retrieve the responses I am now able to get a text string including the access_token and the expiry time in the following format:

   access_token=ACCESS&expires=2577 

Obviously I can split this into an array and split the parts to get the access_token

But, on the FB Developers example above, they do it with PHP like so:

    $params['access_token'];

Is there a VB.net way of doing this? This seems more reliable to me than teh aforementioned splitting idea, ie, if FB change the output format.

Answer 1

You can use HttpUtility.ParseQueryString to parse a query string. If you’re not using ASP.NET, you should add a reference to System.Web.dll. I also don’t believe this will work in .NET 4 client profile.

Imports System.Web
Imports System.Collections.Specialized

Dim qString As NameValueCollection = HttpUtility.ParseQueryString("var1=val1&var2=val2")