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Azure Blob Storage: Unexpected 403 Forbidden scenarios When Accessing Publicly Accessible Blob

πŸ‘€ Views: 2 πŸ’¬ Answers: 1 πŸ“… Created: 2025-06-08
azure blob-storage http-errors C#

I'm learning this framework and I'm working with a 403 Forbidden behavior when trying to access a public blob in Azure Blob Storage, and I'm quite puzzled. I have set the blob's access level to 'Blob' using the Azure portal, but I still receive a 403 behavior when attempting to retrieve the blob. Here’s the code I’m using to access the blob: ```csharp using Azure.Storage.Blobs; using System; using System.Threading.Tasks; class Program { private const string BlobServiceEndpoint = "https://<your_storage_account>.blob.core.windows.net"; private const string ContainerName = "<your_container_name>"; private const string BlobName = "<your_blob_name>"; static async Task Main(string[] args) { var blobServiceClient = new BlobServiceClient(BlobServiceEndpoint); var blobContainerClient = blobServiceClient.GetBlobContainerClient(ContainerName); var blobClient = blobContainerClient.GetBlobClient(BlobName); try { var response = await blobClient.DownloadAsync(); Console.WriteLine("Blob downloaded successfully."); } catch (Azure.RequestFailedException ex) { Console.WriteLine($"behavior: {ex.Status}: {ex.Message}"); } } } ``` I've double-checked the container properties, and the access level is indeed set to 'Blob'. The SAS token I generated for testing is not being used for public access, so I'm unsure why I'm hitting a 403 behavior. Additionally, I'm using the Azure.Storage.Blobs NuGet package version 12.9.0. I've also tried accessing the blob directly from the browser using the URL `https://<your_storage_account>.blob.core.windows.net/<your_container_name>/<your_blob_name>`, but I get the same 403 Forbidden behavior. Is there a specific configuration setting or permission that I might be overlooking? Could it also be a caching scenario with Azure? Any insights would be greatly appreciated! This is part of a larger application I'm building. Any help would be greatly appreciated! I've been using C# for about a year now. Any feedback is welcome!