public static async Task RunAsync([EventHubTrigger("%EVENTHUB_NAME%", Connection = "EventHubConnectionAppSetting")] string myEventHubMessage, ILogger log)
{
// Processing and extracting the notification on Event Hub
PayloadDetails payloadDetails = JsonConvert.DeserializeObject <PayloadDetails>(myEventHubMessage);
string containerName = payloadDetails.ContainerName;
string blobName = payloadDetails.BlobName;
// Downloading the message from blob storage for processing
string storageConnectionString = Environment.GetEnvironmentVariable("STORAGE_CONNECTION_STRING");
try
{
BlobContainerClient container = new BlobContainerClient(storageConnectionString, containerName);
// Get a reference to a blob named "sample-file" in a container named "sample-container"
BlobClient blob = container.GetBlobClient(blobName);
log.LogInformation("Here is the large payload information");
// Reading payload
BlobDownloadInfo download = await blob.DownloadAsync();
using (StreamReader reader = new StreamReader(download.Content))
{
string data = reader.ReadToEnd();
log.LogInformation(data);
}
// The large payload can be processed further
}
catch (RequestFailedException ex)
{
log.LogError("Error returned from the service: {0}", ex.Message);
}
}
public static async Task RunAsync([EventHubTrigger("%EVENTHUB_NAME%", Connection = "EventHubConnectionAppSetting")] string myEventHubMessage, ILogger log)
{
// Processing and extracting the notification on Event Hub
PayloadDetails payloadDetails = JsonConvert.DeserializeObject <PayloadDetails>(myEventHubMessage);
string containerName = payloadDetails.ContainerName;
string blobName = payloadDetails.BlobName;
// Downloading the message from blob storage for processing
string storageConnectionString = Environment.GetEnvironmentVariable("STORAGE_CONNECTION_STRING");
CloudStorageAccount storageAccount = null;
CloudBlobContainer cloudBlobContainer = null;
// Check whether the connection string can be parsed.
if (CloudStorageAccount.TryParse(storageConnectionString, out storageAccount))
{
try
{
// Create the CloudBlobClient that represents the Blob storage endpoint for the storage account.
CloudBlobClient cloudBlobClient = storageAccount.CreateCloudBlobClient();
// Get reference to the container
cloudBlobContainer = cloudBlobClient.GetContainerReference(containerName);
// Get reference to the blob with heavy payload
CloudBlockBlob cloudBlockBlob = cloudBlobContainer.GetBlockBlobReference(blobName);
log.LogInformation("Here is the large payload information");
// Reading payload
Stream blobStream = await cloudBlockBlob.OpenReadAsync();
using (StreamReader reader = new StreamReader(blobStream))
{
string data = reader.ReadToEnd();
log.LogInformation(data);
}
// The large payload can be processed further
}
catch (StorageException ex)
{
log.LogError("Error returned from the service: {0}", ex.Message);
}
}
}
