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(Node.js) Download a Binary File into MemoryDownloads a binary file into memory.
var os = require('os'); if (os.platform() == 'win32') { if (os.arch() == 'ia32') { var chilkat = require('@chilkat/ck-node11-win-ia32'); } else { var chilkat = require('@chilkat/ck-node11-win64'); } } else if (os.platform() == 'linux') { if (os.arch() == 'arm') { var chilkat = require('@chilkat/ck-node11-arm'); } else if (os.arch() == 'x86') { var chilkat = require('@chilkat/ck-node11-linux32'); } else { var chilkat = require('@chilkat/ck-node11-linux64'); } } else if (os.platform() == 'darwin') { var chilkat = require('@chilkat/ck-node11-macosx'); } function chilkatExample() { // Azure File Service Example: Download a Binary File to Memory // See: https://docs.microsoft.com/en-us/rest/api/storageservices/get-file // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. var rest = new chilkat.Rest(); // Connect to the Azure Storage Blob Service var bTls = true; var port = 443; var bAutoReconnect = true; // In this example, the storage account name is "chilkat". var success = rest.Connect("chilkat.file.core.windows.net",port,bTls,bAutoReconnect); if (success !== true) { console.log(rest.LastErrorText); return; } // Provide Azure Cloud credentials for the REST calls. var azAuth = new chilkat.AuthAzureStorage(); azAuth.AccessKey = "AZURE_ACCESS_KEY"; // The account name used here should match the 1st part of the domain passed in the call to Connect (above). azAuth.Account = "chilkat"; azAuth.Scheme = "SharedKey"; azAuth.Service = "File"; // This causes the "x-ms-version: 2015-02-21" header to be automatically added. azAuth.XMsVersion = "2015-02-21"; success = rest.SetAuthAzureStorage(azAuth); // Note: The application does not need to explicitly set the following // headers: x-ms-date, Authorization. These headers // are automatically set by Chilkat. // Send a GET request to download the file "penguins.jpg" to a BinData object. // (The share name is "pip") var bdFileContents = new chilkat.BinData(); success = rest.FullRequestNoBodyBd("GET","/pip/wildlife/antarctic/penguins.jpg",bdFileContents); if (success !== true) { console.log(rest.LastErrorText); return; } // When successful, the response status will be 200. // If a non-success status code is returned, then the bdFileContents actually contains the XML error message. if (rest.ResponseStatusCode !== 200) { // Examine the request/response to see what happened. console.log("response status code = " + rest.ResponseStatusCode); console.log("response status text = " + rest.ResponseStatusText); console.log("response header: " + rest.ResponseHeader); var sbXmlErr = new chilkat.StringBuilder(); sbXmlErr.AppendBd(bdFileContents,"utf-8",0,0); console.log("response body (if any): " + sbXmlErr.GetAsString()); console.log("---"); console.log("LastRequestStartLine: " + rest.LastRequestStartLine); console.log("LastRequestHeader: " + rest.LastRequestHeader); return; } console.log("Size of the downloaded file = " + bdFileContents.NumBytes); // See the online reference documentation for the BinData class for ways // to access the bytes. bdFileContents.WriteFile("qa_output/penguins.jpg"); } chilkatExample(); |
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