(Node.js) Demonstrate S3_DownloadBytes

Demonstrates how to download a file into memory from the Amazon S3 service.

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() {

    // This example assumes the Chilkat HTTP API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var http = new chilkat.Http();

    http.AwsAccessKey = "AWS_ACCESS_KEY";
    http.AwsSecretKey = "AWS_SECRET_KEY";

    var bucketName = "chilkat.qa";
    var objectName = "images/sea_creatures/starfish.jpg";
    var localFilePath = "qa_output/starfish.jpg";

    jpgBytes = http.S3_DownloadBytes(bucketName,objectName);
    if (http.LastMethodSuccess !== true) {
        console.log(http.LastErrorText);
        return;
    }

    console.log("Download successful.");

    var fac = new chilkat.FileAccess();
    var success = fac.WriteEntireFile(localFilePath,jpgBytes);
    console.log("File saved success = " + success);

}

chilkatExample();