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);
            }
        }
Beispiel #2
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        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);
                }
            }
        }