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Moving Applications to the Cloud on the Microsoft Azure™ Platform by Matias Woloski, Masashi Narumoto, Ryan Dunn, Scott Densmore, Dominic Betts, Eugenio Pace

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Chapter 6. Phase 3: Uploading Images and Adding a Worker Role

This chapter walks you through the changes in the cloud-based version aExpense application that Adatum made when they added support for uploading, storing, and displaying scanned images of receipts. You’ll see how the application uses Windows® Azure™ technology platform blob storage to store the image data, how the application uses a worker role in Windows Azure to perform background processing tasks on the images, and how the application uses shared access signatures to control access to the images. The chapter also introduces a simple set of abstractions that wrap a worker role in the expectation that the aExpense application will be given additional background tasks to perform in ...

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