(Node.js) Use an Azure Service SAS

Shows how to use an Azure Service SAS. (In this case, it is an SAS for a blob.)

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // Azure Blob Service Example: Upload binary bytes to a block blob.
    // This uses a Service SAS for Authorization.

    // 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.blob.core.windows.net",port,bTls,bAutoReconnect);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // ----------------------------------------------------------------------------------------------
    // The code above this comment could be placed inside a function/subroutine within the application
    // because the connection does not need to be made for every request.  Once the connection is made
    // the app may send many requests..
    // ----------------------------------------------------------------------------------------------

    // Note: The application does not need to explicitly set the following
    // headers: Content-Length, x-ms-date, Authorization.  These headers
    // are automatically set by Chilkat.

    // Let's load a previously computed Azure Storage Account SAS token and use it.
    // See How to Create an Azure Service SAS
    var sbToken = new chilkat.StringBuilder();
    success = sbToken.LoadFile("qa_data/tokens/azureStorageServiceSas.txt","utf-8");
    if (success !== true) {
        console.log("Failed to load SAS token.");
        return;
    }

    // Add the Shared Access Signature query params for authorization.
    rest.AddQueryParams(sbToken.GetAsString());

    // IMPORTANT: Make sure to set the x-ms-blob-type header:
    success = rest.AddHeader("x-ms-blob-type","BlockBlob");

    // IMPORTANT: Make sure to add the x-ms-date header.
    // When the header name is "x-ms-date", Chilkat will recognize the keyword "NOW" 
    // and will substitute the current system date/time formatted as required by Microsoft.
    success = rest.AddHeader("x-ms-date","NOW");

    // For this example, we'll just load a JPG file into memory..
    var binData = new chilkat.BinData();
    success = binData.LoadFile("qa_data/jpg/starfish.jpg");
    if (success !== true) {
        console.log("Failed to load JPG file.");
        return;
    }

    // Note: The maximum size of a block blob created by uploading in a single step is 64MB.  
    // For larger files, the upload must be broken up into blocks.  There is another Chilkat example for that..
    var sbResponse = new chilkat.StringBuilder();
    success = rest.FullRequestBd("PUT","/mycontainer/starfish.jpg",binData,sbResponse);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // When successful, the Azure Storage service will respond with a 201 response status code,
    // with no response body.
    if (rest.ResponseStatusCode !== 201) {
        // 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);
        console.log("response body (if any): " + sbResponse.GetAsString());
        console.log("---");
        console.log("LastRequestStartLine: " + rest.LastRequestStartLine);
        console.log("LastRequestHeader: " + rest.LastRequestHeader);
        console.log("Failed.");
        return;
    }

    console.log("Success.");

}

chilkatExample();