{"id":1114,"date":"2019-07-18T06:48:00","date_gmt":"2019-07-18T06:48:00","guid":{"rendered":"http:\/\/blogs.encamina.com\/piensa-en-software-desarrolla-en-colores\/?p=1114"},"modified":"2019-07-18T09:51:06","modified_gmt":"2019-07-18T09:51:06","slug":"como-dar-alas-a-tu-aplicacion-a-la-hora-de-subir-archivos-a-azure","status":"publish","type":"post","link":"https:\/\/blogs.encamina.com\/piensa-en-software-desarrolla-en-colores\/como-dar-alas-a-tu-aplicacion-a-la-hora-de-subir-archivos-a-azure\/","title":{"rendered":"C\u00f3mo dar alas a tu aplicaci\u00f3n a la hora de subir archivos a Azure"},"content":{"rendered":"

\"\"<\/p>\n

En muchas aplicaciones modernas tenemos la necesidad de realizar cargas de archivos grandes a Azure. En este post veremos c\u00f3mo dar alas a tu aplicaci\u00f3n para subir archivos a la nube y llevarla a otro nivel.<\/p>\n

<\/p>\n

Veamos antes un ejemplo<\/h2>\n

Para que podamos observar la comparaci\u00f3n, te voy a mostrar un ejemplo de c\u00f3mo subir un archivo a un Blob Storage e Azure y comprobar tiempos.<\/p>\n

En el ejemplo, usaremos la \u00faltima versi\u00f3n del paquete Nuget\u00a0 WindowsAzure.Storage. <\/a>Con esto, una aplicaci\u00f3n de Consola de .Net Core y un PDF de unos 70MB, tenemos todo lo necesario.<\/p>\n

\u00a1Vamos all\u00e1!<\/p>\n

 \r\n\r\nusing Microsoft.WindowsAzure.Storage;\r\nusing System;\r\nusing System.Diagnostics;\r\nusing System.IO;\r\nusing System.Text;\r\nusing System.Threading.Tasks;\r\n\r\nnamespace AzureStorageDataMovement\r\n{\r\n   class Program\r\n   {\r\n       static async Task Main(string[] args)\r\n       {\r\n          var sourcePath = @"C:\\Temp\\MyLargePDF.pdf";\r\n          var containerName = "docs1";\r\n          var folderName = "testAzureStorageDataMovement";\r\n          Console.WriteLine($"Size of {Path.GetFileName(sourcePath)}: {new FileInfo(sourcePath).Length} bytes");\r\n\r\n          var newFileUri = await UploadBlobToContainer(containerName, folderName, sourcePath);\r\n\r\n          Console.WriteLine($"The new Azure Blob File id: {newFileUri}");\r\n          Console.ReadKey();\r\n       }\r\n\r\n       public static async Task<Uri> UploadBlobToContainer(string containerName, string folderName, string sourcePath)\r\n       {\r\n           try\r\n           {\r\n               var connectionString = "DefaultEndpointsProtocol=https;AccountName=XXXXXX;AccountKey=XXXXXX ==;EndpointSuffix=core.windows.net";\r\n               var storageAccount = CloudStorageAccount.Parse(connectionString);\r\n               var client = storageAccount.CreateCloudBlobClient();\r\n               var container = client.GetContainerReference(containerName);\r\n               \r\n               \/\/ Me gusta aplicar esta condici\u00f3n ya que provoca errores 409 en Application Insights si el container existe\r\n               if (!await container.ExistsAsync())   \r\n               {\r\n                   await container.CreateIfNotExistsAsync();\r\n               }\r\n               var folder = container.GetDirectoryReference(folderName);\r\n               var blobName = $"{Guid.NewGuid().ToString()}{Path.GetExtension(sourcePath)}";\r\n               var blockBlob = folder.GetBlockBlobReference(blobName);\r\n               blockBlob.Metadata.Add("originalFileName", EncodeFileNameToBase64(Path.GetFileName(sourcePath)));\r\n\r\n               var stopwatch = Stopwatch.StartNew();\r\n               await blockBlob.UploadFromFileAsync(sourcePath);\r\n               stopwatch.Stop();\r\n\r\n               Console.WriteLine("Time elapsed: {0:hh\\\\:mm\\\\:ss}", stopwatch.Elapsed);\r\n               return blockBlob.Uri;\r\n           }\r\n           catch (StorageException ex)\r\n           {\r\n               throw new AzureStorageDataMovementException($"Error while uploading blob to container {containerName}.", ex);\r\n           }\r\n       } \r\n         \r\n       private static string EncodeFileNameToBase64(string fileName)\r\n       {\r\n           var originBytes = Encoding.UTF8.GetBytes(fileName);\r\n           return Convert.ToBase64String(originBytes);\r\n       }\r\n    }\r\n}\r\n<\/pre>\n
Ejecutando nuestro programa obtenemos la siguiente salida<\/p>\n
\"Tiempo<\/a>
Tiempo de subida del archivo a nuestro Blob, 11 segundos<\/p><\/div><\/p>\n
Size of MyLargePDF.pdf: 73303135 bytes
\nTime elapsed: 00:00:11
\nThe new Azure Blob File id: https:\/\/xxxxxxxx.blob.core.windows.net\/docs1\/testAzureStorageDataMovement\/cd2ebb4c-76c7-40d2-aaed-5ed36e418898.pdf<\/p>\n
Como podemos observar, ha tardado 11 segundos en subir el archivo a nuestro Blob.<\/p>\n
Ahora, la versi\u00f3n vitaminada<\/h2>\n
Como si nuestra aplicaci\u00f3n se tomara la famosa bebida energ\u00e9tica que DA ALAS, usaremos el paquete Nuget Microsoft.Azure.Storage.DataMovement<\/a><\/p>\n
Realizaremos una peque\u00f1a modificaci\u00f3n en nuestro c\u00f3digo.<\/p>\n
\r\nusing Microsoft.Azure.Storage;\r\nusing Microsoft.Azure.Storage.Blob;\r\nusing Microsoft.Azure.Storage.DataMovement;\r\nusing System;\r\nusing System.Diagnostics;\r\nusing System.IO;\r\nusing System.Net;\r\nusing System.Text;\r\nusing System.Threading;\r\nusing System.Threading.Tasks;\r\n\r\nnamespace AzureStorageDataMovementEnhanced\r\n{\r\n   class Program\r\n   {\r\n      static async Task Main(string[] args)\r\n      {\r\n         var sourcePath = @"C:\\Temp\\MyLargePDF.pdf";\r\n         var containerName = "docs1";\r\n         var folderName = "testAzureStorageDataMovement";\r\n         Console.WriteLine($"Size of {Path.GetFileName(sourcePath)}: {new FileInfo(sourcePath).Length} bytes");\r\n\r\n         var newFileUri = await UploadBlobToContainer(containerName, folderName, sourcePath);\r\n\r\n         Console.WriteLine($"The new Azure Blob File id: {newFileUri}");\r\n         Console.ReadKey();\r\n      }\r\n\r\n      public static async Task<Uri> UploadBlobToContainer(string containerName, string folderName, string sourcePath)\r\n      { \r\n         try\r\n         {  \r\n            var connectionString = "DefaultEndpointsProtocol=https;AccountName=XXXXXX;AccountKey=XXXXXX ==;EndpointSuffix=core.windows.net";\r\n            var storageAccount = CloudStorageAccount.Parse(connectionString);\r\n            var client = storageAccount.CreateCloudBlobClient();\r\n            var container = client.GetContainerReference(containerName);\r\n\r\n           \/\/ Me gusta aplicar esta condici\u00f3n ya que provoca errores 409 en Application Insights si el container existe\r\n           if (!await container.ExistsAsync())\r\n           {\r\n              await container.CreateIfNotExistsAsync();\r\n           }\r\n           var folder = container.GetDirectoryReference(folderName);\r\n           var blobName = $"{Guid.NewGuid().ToString()}{Path.GetExtension(sourcePath)}";\r\n           var blockBlob = folder.GetBlockBlobReference(blobName);\r\n           blockBlob.Metadata.Add("originalFileName", EncodeFileNameToBase64(Path.GetFileName(sourcePath)));\r\n\r\n           \/\/ Aqui est\u00e1 la madre del cordero\r\n           TransferManager.Configurations.ParallelOperations = ServicePointManager.DefaultConnectionLimit = Environment.ProcessorCount * 8;\r\n           ServicePointManager.Expect100Continue = false;\r\n           SingleTransferContext context = new SingleTransferContext\r\n           {\r\n              LogLevel = Microsoft.Azure.Storage.LogLevel.Warning\r\n           };\r\n\r\n           var stopwatch = Stopwatch.StartNew();\r\n           await TransferManager.UploadAsync(sourcePath, blockBlob, null, context, CancellationToken.None);\r\n           stopwatch.Stop();\r\n           \r\n           Console.WriteLine("Time elapsed: {0:hh\\\\:mm\\\\:ss}", stopwatch.Elapsed);\r\n           return blockBlob.Uri;\r\n        }\r\n        catch (StorageException ex)\r\n        { \r\n           throw new AzureStorageDataMovementException($"Error while uploading blob to container {containerName}.", ex); \r\n        }\r\n     }\r\n \r\n     private static string EncodeFileNameToBase64(string fileName)\r\n     {\r\n        var originBytes = Encoding.UTF8.GetBytes(fileName);\r\n        return Convert.ToBase64String(originBytes);\r\n     }\r\n  }\r\n}\r\n<\/pre>\n
Y ejecutando nuestro programa modificado, obtenemos la siguiente salida<\/p>\n
\"Tiempo<\/a>
Tiempo de subida del archivo al Blob, 4 segundos<\/p><\/div><\/p>\n
Size of MyLargePDF.pdf: 73303135 bytes
\nTime elapsed: 00:00:04
\nThe new Azure Blob File id: https:\/\/xxxxxxxx.blob.core.windows.net\/docs1\/testAzureStorageDataMovement\/56ae3f2d-c555-472a-a220c3346142.pdf<\/p>\n
Ahora ha tardado 4 segundos en subir el archivo a nuestro Blob. Es una mejora muy significativa \u00bfverdad?<\/p>\n
Ya, pero \u00bfpuedes comentarnos algo de las modificaciones realizadas?<\/h2>\n
\u00a1Por supuesto! Os explico algunos detalles de las modificaciones.<\/p>\n