Create a blob storage container programmatically

Question

I have a requirement whereby on creation of a company an associated blob storage container is created in my storageaccount with the container name set to the string variable passed in. I have tried the following:

public void AddCompanyStorage(string subDomain)
    {
        //get the storage account.
        CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
            System.Configuration.ConfigurationManager.AppSettings["StorageConnectionString"].ToString());

        //blob client now
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();            

        //the container for this is companystyles
        CloudBlobContainer container = new CloudBlobContainer("https://mystore.blob.core.windows.net/" + subDomain);
    }

This however has not created the container as I expected, am I going about this in the wrong manner? Is this possible?

NavaRajan · Accepted Answer · 2016-08-01 15:30:14Z

35

    public void AddCompanyStorage(string subDomain)
        {
            //get the storage account.
            CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
                System.Configuration.ConfigurationManager.AppSettings["StorageConnectionString"].ToString());

            //blob client now
            CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();            

            //the container for this is companystyles
           CloudBlobContainer container = blobClient.GetContainerReference(subDomain);

            //Create a new container, if it does not exist
           container.CreateIfNotExists();
        }

Follow the guidline for container names:

A container name must be a valid DNS name, conforming to the
following naming rules: Container names must start with a letter or
number, and can contain only letters, numbers, and the dash (-)
character.
Every dash (-) character must be immediately preceded and followed by a letter or number; consecutive dashes are not permitted in container names.
All letters in a container name must be lowercase.
Container names must be from 3 through 63 characters long.

edited Aug 1, 2016 at 15:30

answered May 12, 2014 at 11:26

NavaRajan

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2 Comments

Jay Over a year ago

Cheers had just found this on other post :)

sh1rts Over a year ago

One minor error in your sample code; the method on CloudBlobContainer is called CreateIfNotExists (not Exist). Otherwise thanks, good example.

Gaurav Mantri · Accepted Answer · 2014-05-12 11:25:24Z

CloudBlobContainer container = new CloudBlobContainer("https://mystore.blob.core.windows.net/" + subDomain);

This just creates an instance of CloudBlobContainer object. To create a container in your storage account, you would need to call CreateIfNotExists or Create function on this object.

Try this code instead:

public void AddCompanyStorage(string subDomain)
    {
        //get the storage account.
        CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
            System.Configuration.ConfigurationManager.AppSettings["StorageConnectionString"].ToString());

        //blob client now
        CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();            

        //the container for this is companystyles
        CloudBlobContainer container = blobClient.GetContainerReference(subDomain);
        container.CreateIfNotExists();

    }

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