public async Task WriteAppendBlobAsync(string containerName, string filename, Stream source, string contentType = "application/octet-stream", CancellationToken token = default(CancellationToken))
{
if (string.IsNullOrEmpty(filename))
{
throw new ArgumentException("filename");
}
if (source == null)
{
throw new ArgumentNullException("source");
}
Exception error = null;
Stopwatch watch = new Stopwatch();
watch.Start();
double time = watch.Elapsed.TotalMilliseconds;
long bytesTransferred = 0;
IProgress <StorageProgress> progressHandler = new Progress <StorageProgress>(
progress =>
{
bytesTransferred = bytesTransferred < progress.BytesTransferred ? progress.BytesTransferred : bytesTransferred;
if (watch.Elapsed.TotalMilliseconds > time + 1000.0 && bytesTransferred <= progress.BytesTransferred)
{
OnUploadBytesTransferred?.Invoke(this, new BytesTransferredEventArgs(containerName, filename, bytesTransferred, source.Length));
}
});
try
{
CloudBlobContainer container = await GetContainerReferenceAsync(containerName);
CloudAppendBlob blob = container.GetAppendBlobReference(filename);
await blob.UploadFromStreamAsync(source, default(AccessCondition), default(BlobRequestOptions), default(OperationContext), progressHandler, token);
}
catch (Exception ex)
{
if (ex.InnerException is TaskCanceledException)
{
source = null;
}
else
{
error = ex;
throw ex;
}
}
finally
{
watch.Stop();
OnUploadCompleted?.Invoke(this, new BlobCompleteEventArgs(containerName, filename, token.IsCancellationRequested, error));
}
}
public static void Run([BlobTrigger("helloworld/{name}", Connection = "AzureWebJobsStorage")] Stream myBlob, string name, TraceWriter log)
{
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(
"storage account connection string");
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer container = blobClient.GetContainerReference("helloworld");
CloudAppendBlob blob = container.GetAppendBlobReference("log2.txt");
using (var fileStream = System.IO.File.OpenRead(@"D:\log.txt"))
{
blob.UploadFromStreamAsync(fileStream);
}
log.Info($"C# Blob trigger function Processed blob\n Name:{name} \n Size: {myBlob.Length} Bytes");
}
public static async Task WriteStateToBlob(CloudBlobContainer blobContainer, string blobName, string content)
{
CloudAppendBlob appendBlob = blobContainer.GetAppendBlobReference($"{(object)blobName}.json");
bool flag = await appendBlob.ExistsAsync();
if (!flag)
{
await appendBlob.CreateOrReplaceAsync();
}
appendBlob.Properties.ContentType = "application/json";
using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(content)))
{
stream.Position = 0;
await appendBlob.UploadFromStreamAsync(stream);
}
}
public static void UploadFromStream(this CloudAppendBlob cloudBlob, Stream source, AccessCondition accessCondition = null, BlobRequestOptions options = null, OperationContext operationContext = null)
{
cloudBlob.UploadFromStreamAsync(source, accessCondition, options, operationContext).GetAwaiter().GetResult();
}
public static void UploadFromStream(this CloudAppendBlob blob, System.IO.Stream stream)
{
blob.UploadFromStreamAsync(stream).Wait();
}
