Azure Function to get image from Blob Storage stopped working on Local Azure Emulator (Azurite)

Question

Simple Azure function to get image from storage...

        [FunctionName("GetImage")]
        public static IActionResult GetImage(
        [HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "image/{fileName}")] HttpRequest req,
        [Blob("images/{fileName}", FileAccess.Read, Connection = "BlobConnection")] Stream blob,
        ILogger log, string fileName)
        {            
            log.LogInformation("Get file from blob " + fileName + " length: " + blob.Length);
            MemoryStream ms = new MemoryStream();
            blob.CopyTo(ms);
            return new FileContentResult(ms.ToArray(), "image/jpeg");
        }

Worked just fine, than I faced an issue: can't start azure functions (Internal 500 Error - problem with blob storage).

Additional configuration parameter seems to resolve initialization issue:

"AzureWebJobsSecretStorageType": "files"

Unfortunately now function is not working when executed:

1. It logs access with required file name and size.
2. It stops for around 25s on blob.CopyTo(ms) line.
3. Error:

Executed 'GetImage' (Failed, Duration=26013ms)
System.Private.CoreLib: Exception while executing function: GetImage. Azure.Storage.Blobs: Service request failed.
Status: 500 (Internal Server Error)

Inner source of Exception: Azure.Storage.Blobs.BlobRestClient.Download(...

Any ideas? Thanks in advance.

Connected to Azurite with Microsoft Azure Storage Explorer. No issues there.

Azure Functions Core Tools Core Tools Version: 4.0.4915 Commit hash: N/A (64-bit) Function Runtime Version: 4.14.0.19631

Exception thrown by: blob.CopyTo(ms):

Azure.RequestFailedException: Service request failed.

Status: 500 (Internal Server Error)

Headers:

Server: Azurite-Blob/3.20.1

x-ms-creation-time: Wed, 30 Nov 2022 12:55:17 GMT

ETag: "0x1D64FE85292CAC0"

x-ms-blob-type: BlockBlob

x-ms-lease-state: available

x-ms-lease-status: unlocked

x-ms-client-request-id: 6e6dff50-8c8b-4ccd-bb76-e9b460008293

x-ms-request-id: 91976feb-4421-47a3-9a0e-16a26dc6ad70

x-ms-version: 2021-10-04

Accept-Ranges: bytes

Date: Thu, 15 Dec 2022 08:46:32 GMT

x-ms-server-encrypted: true

x-ms-blob-content-md5: 3KQmtVIakH8iR9D9PlFbSg==

Connection: keep-alive

Keep-Alive: REDACTED

Last-Modified: Wed, 30 Nov 2022 12:55:17 GMT

Content-Length: 18304

Content-Type: image/jpeg

Content-Range: bytes 0-18303/18304

Content-MD5: 3KQmtVIakH8iR9D9PlFbSg==

Content-Disposition:

at Azure.Storage.Blobs.BlobRestClient.Download(String snapshot, String versionId, Nullable1 timeout, String range, String leaseId, Nullable1 rangeGetContentMD5, Nullable1 rangeGetContentCRC64, String encryptionKey, String encryptionKeySha256, Nullable1 encryptionAlgorithm, Nullable1 ifModifiedSince, Nullable1 ifUnmodifiedSince, String ifMatch, String ifNoneMatch, String ifTags, CancellationToken cancellationToken) at Azure.Storage.Blobs.Specialized.BlobBaseClient.StartDownloadAsync(HttpRange range, BlobRequestConditions conditions, Boolean rangeGetContentHash, Int64 startOffset, Boolean async, CancellationToken cancellationToken) at Azure.Storage.Blobs.Specialized.BlobBaseClient.DownloadStreamingInternal(HttpRange range, BlobRequestConditions conditions, Boolean rangeGetContentHash, IProgress`1 progressHandler, String operationName, Boolean async, CancellationToken cancellationToken) at Azure.Storage.Blobs.Specialized.BlobBaseClient.<>c__DisplayClass92_0.<b__0>d.MoveNext()

--- End of stack trace from previous location ---

at Azure.Storage.LazyLoadingReadOnlyStream1.DownloadInternal(Boolean async, CancellationToken cancellationToken) at Azure.Storage.LazyLoadingReadOnlyStream1.ReadInternal(Byte[] buffer, Int32 offset, Int32 count, Boolean async, CancellationToken cancellationToken) at Azure.Core.Pipeline.TaskExtensions.EnsureCompleted[T](Task1 task) at Azure.Storage.LazyLoadingReadOnlyStream1.Read(Byte[] buffer, Int32 offset, Int32 count) at System.IO.Stream.CopyTo(Stream destination, Int32 bufferSize) at System.IO.Stream.CopyTo(Stream destination) at StandardFunctions.BloobFunctions.GetImage(HttpRequest req, Stream blob, ILogger log, String fileName) in C:\Dev\StandardFunctions\BloobFunctions.cs:line 39

Answer 1

Fresh installation of OS and VS. The same code with the same configuration is working just fine :/