public void ReadTo()
{
// Create a temporary Lorem Ipsum file on disk that we can upload
string originalPath = CreateTempFile(SampleFileContent);
// Get a temporary path on disk where we can download the file
string downloadPath = CreateTempPath();
// Make StorageSharedKeyCredential to pass to the serviceClient
string storageAccountName = StorageAccountName;
string storageAccountKey = StorageAccountKey;
Uri serviceUri = StorageAccountBlobUri;
StorageSharedKeyCredential sharedKeyCredential = new StorageSharedKeyCredential(storageAccountName, storageAccountKey);
// Create DataLakeServiceClient using StorageSharedKeyCredentials
DataLakeServiceClient serviceClient = new DataLakeServiceClient(serviceUri, sharedKeyCredential);
// Get a reference to a filesystem named "sample-filesystem-read" and then create it
DataLakeFileSystemClient filesystem = serviceClient.GetFileSystemClient(Randomize("sample-filesystem-read"));
filesystem.Create();
try
{
// Get a reference to a file named "sample-file" in a filesystem
DataLakeFileClient file = filesystem.GetFileClient(Randomize("sample-file"));
// First upload something the DataLake file so we have something to download
file.Upload(File.OpenRead(originalPath));
// Download the DataLake file's directly to a file.
// For larger files, ReadTo() will download the file in multiple sequential requests.
#region Snippet:SampleSnippetDataLakeFileClient_ReadTo
file.ReadTo(downloadPath);
#endregion Snippet:SampleSnippetDataLakeFileClient_ReadTo
// Verify the contents
Assert.AreEqual(SampleFileContent, File.ReadAllText(downloadPath));
}
finally
{
// Clean up after the test when we're finished
filesystem.Delete();
}
}