Azure Tips and Tricks Part 78 - Copy Azure Storage Blobs and Files via C#

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Intro

Most folks aren’t aware of how powerful the Azure platform really is. As I’ve been presenting topics on Azure, I’ve had many people say, “How did you do that?” So I’ll be documenting my tips and tricks for Azure in these posts.

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Copy Azure Storage Blobs and Files via C

Last week we’ve reviewed the following options with Azure Storage :

Today, we are going to copy Azure Storage Blobs (and Files) via C#. Go ahead and open the Azure Portal and open the C# app that we worked with earlier.

The goal of this exercise is to copy a file inside our Azure Storage Container to a new file. So for example, our Azure Storage Container only contains one file now:

We are going to copy a new file inside of it with the name mikepic-backup.png.

Now that we’ve created the Azure Storage Blob Container, we’ll upload a file to it. We’ll build off our previous post and add the following lines of code to upload a file off our local hard disk:

static void Main(string[] args)
{
    var storageAccount = CloudStorageAccount.Parse(CloudConfigurationManager.GetSetting("StorageConnection"));
    var myClient = storageAccount.CreateCloudBlobClient();
    var container = myClient.GetContainerReference("images-backup");
    container.CreateIfNotExists(BlobContainerPublicAccessType.Blob);

    var blockBlob = container.GetBlockBlobReference("mikepic.png");
//lines added
    var copyBlockBlob = container.GetBlockBlobReference("mikepic-backup.png");

    var cb = new AsyncCallback(x => Console.WriteLine("copy completed"));
    copyBlockBlob.BeginStartCopy(blockBlob, cb, null);
//end lines added

    Console.ReadLine();
}

If we run the application and switch over to our Storage Account and navigate inside the container, we’ll see our file has copied successfully:

Success!

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