Tuesday, March 01, 2011

How to Create a Real-Time Google Map

Best Buy - Live Mobile Scan Map

Best Buy place QR codes on all their products. When a customer uses the Best Buy app, or any other QR code scanner, they are shown the product details for the product they have scanned. The Best Buy - Live Mobile Scan Map uses Google Maps to show the latest real-time scans of products in stores across the US.

The map uses the recently launched App Engine Channel API to update the map in real-time. The Google App Engine Blog has a good guest post by the developer explaining how the app was created. You can also play with a working demo on the channel-map-demo project on GitHub.

The map itself animates between the latest scans in Best Buy stores and makes good use of the Google Maps API styled maps functions to create a distinctive look for the app.

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