SAS URL to display in browser rather than downloading

Athelene Gosnell 21 Reputation points

First off, I'm an Azure newbie. I apologize in advance for any part of this that seems overly stupid. I've spent a good bit of time trying to work through this with no luck. It seems it should be easy!

I have been able to create a web page that can upload images into my Blob storage account. I can also successfully download them using a shared access signature. What I need to do, however, is to simply display the image in the browser without downloading it.

Is there a way to display a secure file in the browser (without downloading it first) using an SAS? If so, how do I do so?

Thanks in advance.

Azure Storage Accounts
Azure Storage Accounts
Globally unique resources that provide access to data management services and serve as the parent namespace for the services.
2,731 questions
Azure Blob Storage
Azure Blob Storage
An Azure service that stores unstructured data in the cloud as blobs.
2,469 questions
0 comments No comments
{count} votes

Accepted answer
  1. shiva patpi 13,146 Reputation points Microsoft Employee

    Hello @Athelene Gosnell ,
    Thanks for your query. I am not sure how the web application was configured. But I was trying out using MVC application , which I was able to successfully display the image with out downloading. (I jus tried using account key, you can replace it with SAS URI)

    Reference piece of code:

    Couple of points to note:

    1. Make sure to set the correct content type (Or Mime Type)
    2. Don't use any streaming APIs (i.e. file stream) - those will by default download the files
    3. If possible try to add the right header (if needed)

    Below is the whole source code (it's the controller part )

    public class ViewModel
    public string FileUrl { get; set; }

    public ActionResult Index()

            var readPolicy = new SharedAccessBlobPolicy()  
                Permissions = SharedAccessBlobPermissions.Read,  
                SharedAccessExpiryTime = DateTime.UtcNow + TimeSpan.FromMinutes(5)  
            // Retrieve storage account from connection string.  
            string conn = "DefaultEndpointsProtocol=https;AccountName=straccountname;AccountKey=key==;";  
            Microsoft.WindowsAzure.Storage.CloudStorageAccount storageAccount = CloudStorageAccount.Parse(conn);  
            // Create the blob client.  
            CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();  
            // Retrieve reference to a previously created container.  
            CloudBlobContainer container = blobClient.GetContainerReference("test");  
            // Retrieve reference to a blob ie "20200809_125724.jpg".  
            CloudBlockBlob blockBlob = container.GetBlockBlobReference("20200809_125724.jpg");  
            var newUri = new Uri(blockBlob.Uri.AbsoluteUri + blockBlob.GetSharedAccessSignature(readPolicy));  
            var viewModel = new ViewModel()  
                FileUrl = newUri.ToString()  
            return View("Index", viewModel);  
            // return View();  

    If the above instructions helps out , kindly "Accept the Answer" so that It can help out the community out there.

0 additional answers

Sort by: Most helpful