public static async Task ImportNetflix( [BlobTrigger("netflix-files/{filename}.{ext}")] Stream file, string filename, string ext, [Table("shows")] CloudTable shows, ILogger log) { System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance); log.LogInformation($"C# Blob trigger function Processed blob\n Name:{filename} \n Size: {file.Length} Bytes"); try { if (!ext.Equals("csv", StringComparison.InvariantCultureIgnoreCase)) { return; } var partitionKey = Path.GetFileName(filename); var tempShows = GetTempShows(file, filename, partitionKey, log); if (tempShows.Any()) { var query = new TableQuery <Show>().Where(TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal, partitionKey)); var oldShows = await shows.ExecuteQuerySegmentedAsync(query, null); if (oldShows.Any()) { await shows.ExecuteParallelBatchAsync(TableOperationType.Delete, oldShows.Cast <ITableEntity>().ToList()); } await shows.ExecuteParallelBatchAsync(TableOperationType.Insert, tempShows.Cast <ITableEntity>().ToList()); } } catch (Exception e) { log.LogError("BlobExample failed", e); } }