New Community Website

Ordinarily, you'd be at the right spot, but we've recently launched a brand new community website... For the community, by the community.

Yay... Take Me to the Community!

The Community Blog is a personal opinion of community members and by no means the official standpoint of DNN Corp or DNN Platform. This is a place to express personal thoughts about DNNPlatform, the community and its ecosystem. Do you have useful information that you would like to share with the DNN Community in a featured article or blog? If so, please contact .

The use of the Community Blog is covered by our Community Blog Guidelines - please read before commenting or posting.

One Function to Rule All URLs

(This is a cross-post from my personal blog…)

I was recently working on implementing Twitter integration features to the DotNetNuke Blog Module (I’ll write up the details about these features in another blog entry) when I quickly ran into the requirement of having to shorten the blog entries’ URLs. As you may or may not know, Twitter requires that messages be less than 140 characters in length and when you include a link and a title, among other things, character real estate  quickly becomes precious.

As it turns out, there are several services out there that provide just this service, for example Almost all URL shrinking services also provide APIs that enable developers to gain access to the URL shrinking function.

As I began researching the multitude of URL shrinking services in order to select my provider of choice I found that they all pretty much exposed the shrinking method the same way. Well, since that was the case, then why restrict myself to just one service? Why not just write one function to rule them all?

With that thought in mind, I built this function, that while it does not include ALL URL shrinking services (I don’t think I could possibly find all of them – you can help though, read through the end) it does include 3 of the most popular ones out there: TinyURL,, and; here it is:

        Public Shared Function ShrinkURL(ByVal Url As String, ByVal Provider As String) As String
                'TinyUrl's minimum url lenght is 25
                'We should shrink our url only is legth is more that 25 charachters
                If Url.Length <= 25 Then
                    Return Url
                End If

                Dim strServiceUrl As String = String.Empty
                Select Case Provider.ToLower
                    Case "tinyurl"
                        strServiceUrl = ""
                    Case "isgd"
                        strServiceUrl = ""
                    Case "zima"
                        strServiceUrl = ""
                    Case Else
                        strServiceUrl = ""
                End Select

                If Not Url.ToLower().StartsWith("http") AndAlso Not Url.ToLower().StartsWith("ftp") Then
                    Url = "http://" + Url
                End If

                Dim UrlShrinkRequest As WebRequest = WebRequest.Create(strServiceUrl + Url)
                Dim UrlShrinkResponse As WebResponse = UrlShrinkRequest.GetResponse()

                Using reader As StreamReader = New StreamReader(UrlShrinkResponse.GetResponseStream())
                    Return reader.ReadToEnd()
                End Using

            Catch ex As Exception
                'If there was an exception, 
                'then just return the original url
                Return Url
            End Try

        End Function

As you can see from the “select case” you can pass it the service name (tinyurl, isgd, or zima), and it will shrink the URL using the appropriate service. You can also augment this function, of course, with any other service that exposes a RESTFUL API that takes a string as input (the original URL), and returns a string back (the shortened URL).

I will continue updating this function by adding additional services as time goes on. If you find any service that you think should make it to this list, please let me by posting a comment below.



Comment Form

Only registered users may post comments.


Aderson Oliveira (22)
Alec Whittington (11)
Alessandra Davies (3)
Alex Shirley (10)
Andrew Hoefling (3)
Andrew Nurse (30)
Andy Tryba (1)
Anthony Glenwright (5)
Antonio Chagoury (28)
Ash Prasad (37)
Ben Schmidt (1)
Benjamin Hermann (25)
Benoit Sarton (9)
Beth Firebaugh (12)
Bill Walker (36)
Bob Kruger (5)
Bogdan Litescu (1)
Brian Dukes (2)
Brice Snow (1)
Bruce Chapman (20)
Bryan Andrews (1)
cathal connolly (55)
Charles Nurse (163)
Chris Hammond (213)
Chris Paterra (55)
Clint Patterson (108)
Cuong Dang (21)
Daniel Bartholomew (2)
Daniel Mettler (181)
Daniel Valadas (48)
Dave Buckner (2)
David Poindexter (12)
David Rodriguez (3)
Dennis Shiao (1)
Doug Howell (11)
Erik van Ballegoij (30)
Ernst Peter Tamminga (80)
Francisco Perez Andres (17)
Geoff Barlow (12)
George Alatrash (12)
Gifford Watkins (3)
Gilles Le Pigocher (3)
Ian Robinson (7)
Israel Martinez (17)
Jan Blomquist (2)
Jan Jonas (3)
Jaspreet Bhatia (1)
Jenni Merrifield (6)
Joe Brinkman (274)
John Mitchell (1)
Jon Henning (14)
Jonathan Sheely (4)
Jordan Coopersmith (1)
Joseph Craig (2)
Kan Ma (1)
Keivan Beigi (3)
Kelly Ford (4)
Ken Grierson (10)
Kevin Schreiner (6)
Leigh Pointer (31)
Lorraine Young (60)
Malik Khan (1)
Matt Rutledge (2)
Matthias Schlomann (16)
Mauricio Márquez (5)
Michael Doxsey (7)
Michael Tobisch (3)
Michael Washington (202)
Miguel Gatmaytan (3)
Mike Horton (19)
Mitchel Sellers (40)
Nathan Rover (3)
Navin V Nagiah (14)
Néstor Sánchez (31)
Nik Kalyani (14)
Oliver Hine (1)
Patricio F. Salinas (1)
Patrick Ryan (1)
Peter Donker (54)
Philip Beadle (135)
Philipp Becker (4)
Richard Dumas (22)
Robert J Collins (5)
Roger Selwyn (8)
Ruben Lopez (1)
Ryan Martinez (1)
Sacha Trauwaen (1)
Salar Golestanian (4)
Sanjay Mehrotra (9)
Scott McCulloch (1)
Scott Schlesier (11)
Scott Wilkinson (3)
Scott Willhite (97)
Sebastian Leupold (80)
Shaun Walker (237)
Shawn Mehaffie (17)
Stefan Cullmann (12)
Stefan Kamphuis (12)
Steve Fabian (31)
Steven Fisher (1)
Timo Breumelhof (24)
Tony Henrich (3)
Torsten Weggen (3)
Tycho de Waard (4)
Vicenç Masanas (27)
Vincent Nguyen (3)
Vitaly Kozadayev (6)
Will Morgenweck (40)
Will Strohl (180)
William Severance (5)
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out