Microsoft Windows Azure Storage BlockBlob Intro

I just wanted to show a quick example of how to save a basic item in Microsoft Windows Azure Storage using BlockBlob storage.

Basically using the simplest process it takes about 8 steps to successfully save an item in Azure Storage.

  1. Get the CloudStorageAccount
  2. Get a CloudBlobContainer
  3. If container doesn’t exist create it
  4. Get a CloudBlockBlob from the CloudBlobContainer
  5. Create a MemoryStream for your byte array
  6. Set the permissions
  7. Set the content-type
  8. Upload the stream

In code this looks like this

morecode

and click here to download a simple little Azure BlockBlob storage manager that I created to help with the process.

Advertisements

Always use ChannelFactory when referencing WCF services (particularly for Azure)

Given the indeterminate nature of the IP addresses of Azure web roles (There are a number of exceptions to this but in general) you end up in a real pickle if you you use the Service Reference functionality built into Visual Studio that most of us regularly do.

(This thing)

Image

Truthfully, the way the proxy service references have always worked had its flaws despite its convenience.

The problem boils down to two things. First, if you’re correctly using WCF services you should be binding to DataContracts and Interfaces rather than any concrete implementations anyway. Secondly, you’re stuck with hard-coded values that live in your web.config, with what is inherently dynamic and often not known at compile time (ip addresses).

So how do you solve it?

Remarkably simply, it takes the form of the channel factory and provided you have both your datacontracts and your service interfaces referenced you can then do this.

Image

Download the example.