Chilkat Examples

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Node.js Examples

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(Node.js) REST Upload String

Example to upload the contents of a string to 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-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() {

    // 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 Amazon AWS REST server.
    var bTls = true;
    var port = 443;
    var bAutoReconnect = true;
    var success = rest.Connect("s3.amazonaws.com",port,bTls,bAutoReconnect);

    // ----------------------------------------------------------------------------
    // Important: For buckets created in regions outside us-east-1,
    // there are three important changes that need to be made.
    // See Working with S3 Buckets in Non-us-east-1 Regions for the details.
    // ----------------------------------------------------------------------------

    // Provide AWS credentials for the REST call.
    var authAws = new chilkat.AuthAws();
    authAws.AccessKey = "AWS_ACCESS_KEY";
    authAws.SecretKey = "AWS_SECRET_KEY";
    authAws.ServiceName = "s3";
    success = rest.SetAuthAws(authAws);

    // Set the bucket name via the HOST header.
    // In this case, the bucket name is "chilkat100".
    rest.Host = "chilkat100.s3.amazonaws.com";

    // Load a text file into memory.
    var fac = new chilkat.FileAccess();
    var fileContents = fac.ReadEntireTextFile("qa_data/xml/hamlet.xml","utf-8");
    if (fac.LastMethodSuccess !== true) {
        console.log(fac.LastErrorText);
        return;
    }

    // To send the file in gzip or deflate compressed format, set the Content-Encoding request
    // header to "gzip" or "deflate".  (this is optional)
    success = rest.AddHeader("Content-Encoding","gzip");

    // Indicate the Content-Type of our upload.  (This is optional)
    success = rest.AddHeader("Content-Type","text/xml");

    // We can add an "Expect: 100-continue" header so that if the request is rejected
    // by the server immediately after receiving the request header, it can respond
    // and the client (Chilkat) can avoid sending the file data.
    // (this is optional)
    success = rest.AddHeader("Expect","100-continue");

    // Upload the file to Amazon S3.
    var responseBodyStr = rest.FullRequestString("PUT","/hamlet_play.xml",fileContents);
    if (rest.LastMethodSuccess !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // Did we get a 200 response indicating success?
    var statusCode = rest.ResponseStatusCode;
    if (statusCode !== 200) {
        console.log("Error response: " + responseBodyStr);
        console.log("Status code: " + statusCode + ", Status text: " + rest.ResponseStatusText);
        return;
    }

    console.log("File successfully uploaded.");

}

chilkatExample();

 

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