LPFM Last.fm Scrobbler API - Sample Application

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Downloads: 398
Change Set: 0ff01d607118
Released: Jun 18, 2011
Updated: Jun 22, 2011 by DanielLarsenNZ
Dev status: Stable Help Icon

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Source Code LastFmScrobbler.SampleApplication.zip
source code, 174K, uploaded Jun 22, 2011 - 398 downloads

Release Notes

This is a Visual Studio 2010 C# Windows Form Project that demonstrates the usage of the LPFM Last.fm Scrobbler API with a Windows Media Player control. Requires Windows Media Player version 9 or greater to be installed on your PC, and .NET Framework 4.

You will need to hardcode your Last.fm API Key and Secret into PlayerForm.cs before running. Apply for a key at http://www.last.fm/api/account

The application demonstrates the desktop application authentication process by requesting a session key from the Last.fm webservice, and if none found, opening a browser so that the user can authorise the application. Once a valid session key is obtained, it is saved in the registry.

The player form offers a File > Open... menu with which you can select a media file. When you press play, the TagLibSharp library is used to obtain meta-data from the file and a NowPlaying request is queued for processing. The Queue is backed by the new .NET 4.0 ConcurrentQueue, a thread-safe first in-first out (FIFO) collection. A delegate is used to asynchronously invoke the processing of the Scrobble, which calls the Last.fm on a seperate thread so that the form can continue with its processing.

This demonstrates asynchronous scrobbling that does not block the form at any stage.

Note: This sample project was updated to demonstrate a better way of async processing. See the discussions for details.

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