private static async Task SendSuccessNotification()
{
var successfulUploadNotification = new FileUploadCompletionNotification();
successfulUploadNotification.CorrelationId = sasUploadUri.CorrelationId;
successfulUploadNotification.IsSuccess = false;
successfulUploadNotification.StatusCode = 200;
successfulUploadNotification.StatusDescription = "Success";
await Client.CompleteFileUploadAsync(successfulUploadNotification);
}
public async Task RunSampleAsync()
{
const string filePath = "TestPayload.txt";
using var fileStreamSource = new FileStream(filePath, FileMode.Open);
var fileName = Path.GetFileName(fileStreamSource.Name);
Console.WriteLine($"Uploading file {fileName}");
var fileUploadTime = Stopwatch.StartNew();
var fileUploadSasUriRequest = new FileUploadSasUriRequest
{
BlobName = fileName
};
// Note: GetFileUploadSasUriAsync and CompleteFileUploadAsync will use HTTPS as protocol regardless of the DeviceClient protocol selection.
Console.WriteLine("Getting SAS URI from IoT Hub to use when uploading the file...");
FileUploadSasUriResponse sasUri = await _deviceClient.GetFileUploadSasUriAsync(fileUploadSasUriRequest);
Uri uploadUri = sasUri.GetBlobUri();
Console.WriteLine($"Successfully got SAS URI ({uploadUri}) from IoT Hub");
try
{
Console.WriteLine($"Uploading file {fileName} using the Azure Storage SDK and the retrieved SAS URI for authentication");
// Note that other versions of the Azure Storage SDK can be used here. For the latest version, see
// https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/storage#azure-storage-libraries-for-net
// NOTE: The UploadAsync operation overwrites the contents of the blob, creating a new block blob if none exists.
// Overwriting an existing block blob replaces any existing metadata on the blob.
// Set <see href="https://docs.microsoft.com/en-us/rest/api/storageservices/specifying-conditional-headers-for-blob-service-operations">
// access conditions through BlobRequestConditions to avoid overwriting existing data.
// See https://github.com/Azure/azure-sdk-for-net/blob/66d8ab97081a35ebc50c98278110dcac0e4d763e/sdk/storage/Azure.Storage.Blobs/src/BlockBlobClient.cs#L570 for more details.
var blockBlobClient = new BlockBlobClient(uploadUri);
await blockBlobClient.UploadAsync(fileStreamSource, new BlobUploadOptions());
}
catch (Exception ex)
{
Console.WriteLine($"Failed to upload file to Azure Storage using the Azure Storage SDK due to {ex}");
var failedFileUploadCompletionNotification = new FileUploadCompletionNotification
{
// Mandatory. Must be the same value as the correlation id returned in the sas uri response
CorrelationId = sasUri.CorrelationId,
// Mandatory. Will be present when service client receives this file upload notification
IsSuccess = false,
// Optional, user-defined status code. Will be present when service client receives this file upload notification
StatusCode = 500,
// Optional, user defined status description. Will be present when service client receives this file upload notification
StatusDescription = ex.Message
};
// Note that this is done even when the file upload fails. IoT Hub has a fixed number of SAS URIs allowed active
// at any given time. Once you are done with the file upload, you should free your SAS URI so that other
// SAS URIs can be generated. If a SAS URI is not freed through this API, then it will free itself eventually
// based on how long SAS URIs are configured to live on your IoT Hub.
await _deviceClient.CompleteFileUploadAsync(failedFileUploadCompletionNotification);
Console.WriteLine("Notified IoT Hub that the file upload failed and that the SAS URI can be freed");
fileUploadTime.Stop();
return;
}
Console.WriteLine("Successfully uploaded the file to Azure Storage");
var successfulFileUploadCompletionNotification = new FileUploadCompletionNotification
{
// Mandatory. Must be the same value as the correlation id returned in the sas uri response
CorrelationId = sasUri.CorrelationId,
// Mandatory. Will be present when service client receives this file upload notification
IsSuccess = true,
// Optional, user defined status code. Will be present when service client receives this file upload notification
StatusCode = 200,
// Optional, user-defined status description. Will be present when service client receives this file upload notification
StatusDescription = "Success"
};
await _deviceClient.CompleteFileUploadAsync(successfulFileUploadCompletionNotification);
Console.WriteLine("Notified IoT Hub that the file upload succeeded and that the SAS URI can be freed.");
fileUploadTime.Stop();
Console.WriteLine($"Time to upload file: {fileUploadTime.Elapsed}.");
}
public async Task RunSampleAsync()
{
const string filePath = "TestPayload.txt";
using var fileStreamSource = new FileStream(filePath, FileMode.Open);
var fileName = Path.GetFileName(fileStreamSource.Name);
Console.WriteLine($"Uploading file {fileName}");
var fileUploadTime = Stopwatch.StartNew();
var fileUploadSasUriRequest = new FileUploadSasUriRequest
{
BlobName = fileName
};
// Note: GetFileUploadSasUriAsync and CompleteFileUploadAsync will use HTTPS as protocol regardless of the DeviceClient protocol selection.
Console.WriteLine("Getting SAS URI from IoT Hub to use when uploading the file...");
FileUploadSasUriResponse sasUri = await _deviceClient.GetFileUploadSasUriAsync(fileUploadSasUriRequest);
Uri uploadUri = sasUri.GetBlobUri();
Console.WriteLine($"Successfully got SAS URI ({uploadUri}) from IoT Hub");
try
{
Console.WriteLine($"Uploading file {fileName} using the Azure Storage SDK and the retrieved SAS URI for authentication");
// Note that other versions of the Azure Storage SDK can be used here. For the latest version, see
// https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/storage#azure-storage-libraries-for-net
var blobClient = new BlobClient(uploadUri);
await blobClient.UploadAsync(fileStreamSource, overwrite : true);
}
catch (Exception ex)
{
Console.WriteLine($"Failed to upload file to Azure Storage using the Azure Storage SDK due to {ex}");
var failedFileUploadCompletionNotification = new FileUploadCompletionNotification
{
// Mandatory. Must be the same value as the correlation id returned in the sas uri response
CorrelationId = sasUri.CorrelationId,
// Mandatory. Will be present when service client receives this file upload notification
IsSuccess = false,
// Optional, user-defined status code. Will be present when service client receives this file upload notification
StatusCode = 500,
// Optional, user defined status description. Will be present when service client receives this file upload notification
StatusDescription = ex.Message
};
// Note that this is done even when the file upload fails. IoT Hub has a fixed number of SAS URIs allowed active
// at any given time. Once you are done with the file upload, you should free your SAS URI so that other
// SAS URIs can be generated. If a SAS URI is not freed through this API, then it will free itself eventually
// based on how long SAS URIs are configured to live on your IoT Hub.
await _deviceClient.CompleteFileUploadAsync(failedFileUploadCompletionNotification);
Console.WriteLine("Notified IoT Hub that the file upload failed and that the SAS URI can be freed");
fileUploadTime.Stop();
return;
}
Console.WriteLine("Successfully uploaded the file to Azure Storage");
var successfulFileUploadCompletionNotification = new FileUploadCompletionNotification
{
// Mandatory. Must be the same value as the correlation id returned in the sas uri response
CorrelationId = sasUri.CorrelationId,
// Mandatory. Will be present when service client receives this file upload notification
IsSuccess = true,
// Optional, user defined status code. Will be present when service client receives this file upload notification
StatusCode = 200,
// Optional, user-defined status description. Will be present when service client receives this file upload notification
StatusDescription = "Success"
};
await _deviceClient.CompleteFileUploadAsync(successfulFileUploadCompletionNotification);
Console.WriteLine("Notified IoT Hub that the file upload succeeded and that the SAS URI can be freed.");
fileUploadTime.Stop();
Console.WriteLine($"Time to upload file: {fileUploadTime.Elapsed}.");
}
static async Task UploadImage(byte[] pictureBytes, string fileName)
{
var fileUploadSasUriRequest = new FileUploadSasUriRequest
{
BlobName = fileName
};
FileUploadSasUriResponse sasUri = await _deviceClient.GetFileUploadSasUriAsync(fileUploadSasUriRequest);
// Pass URL encoded device name and blob name to support special characters
Uri uploadUri = new Uri($"https://{sasUri.HostName}/{sasUri.ContainerName}/{Uri.EscapeDataString(sasUri.BlobName)}{sasUri.SasToken}");
//Console.WriteLine($"Successfully got SAS URI ({uploadUri}) from IoT Hub");
MemoryStream memStream = new MemoryStream();
memStream.Write(pictureBytes, 0, pictureBytes.Length);
memStream.Seek(0, SeekOrigin.Begin);
try
{
//Console.WriteLine($"Uploading file {fileName} using the Azure Storage SDK and a SAS URI for authentication");
// Note that other versions of the Azure Storage SDK can be used here. For the latest version, see
// https://github.com/Azure/azure-sdk-for-net/tree/master/sdk/storage#azure-storage-libraries-for-net
var blob = new CloudBlockBlob(uploadUri);
await blob.UploadFromStreamAsync(memStream);
}
catch (Exception ex)
{
Console.WriteLine($"Failed to upload file to Azure Storage using the Azure Storage SDK due to {ex}");
var failedFileUploadCompletionNotification = new FileUploadCompletionNotification
{
// Mandatory. Must be the same value as the correlation id returned in the sas uri response
CorrelationId = sasUri.CorrelationId,
// Mandatory. Will be present when service client receives this file upload notification
IsSuccess = false,
// Optional, user-defined status code. Will be present when service client receives this file upload notification
StatusCode = 500,
// Optional, user defined status description. Will be present when service client receives this file upload notification
StatusDescription = ex.Message
};
// Note that this is done even when the file upload fails. IoT Hub has a fixed number of SAS URIs allowed active
// at any given time. Once you are done with the file upload, you should free your SAS URI so that other
// SAS URIs can be generated. If a SAS URI is not freed through this API, then it will free itself eventually
// based on how long SAS URIs are configured to live on your IoT Hub.
await _deviceClient.CompleteFileUploadAsync(failedFileUploadCompletionNotification);
//Console.WriteLine("Notified IoT Hub that the file upload failed and that the SAS URI can be freed");
return;
}
//Console.WriteLine("Successfully uploaded the file to Azure Storage");
var successfulFileUploadCompletionNotification = new FileUploadCompletionNotification
{
// Mandatory. Must be the same value as the correlation id returned in the sas uri response
CorrelationId = sasUri.CorrelationId,
// Mandatory. Will be present when service client receives this file upload notification
IsSuccess = true,
// Optional, user defined status code. Will be present when service client receives this file upload notification
StatusCode = 200,
// Optional, user-defined status description. Will be present when service client receives this file upload notification
StatusDescription = "Success"
};
await _deviceClient.CompleteFileUploadAsync(successfulFileUploadCompletionNotification);
//Console.WriteLine("Notified IoT Hub that the file upload succeeded and that the SAS URI can be freed.");
}