(Node.js) Send UTF-16 on TCP or TLS Socket

See more Socket/SSL/TLS Examples

Demonstrates how to send a string on a connected TCP or SSL/TLS socket such that it is the utf-16 byte representation that is sent.

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 API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var socket = new chilkat.Socket();

    var tls = false;
    var maxWaitMs = 20000;
    var domainOrIpAddr = "example.com";
    var port = 1234;

    // Connect to the whatever is expecting our connection...
    var success = socket.Connect(domainOrIpAddr,port,tls,maxWaitMs);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // Let's say we have an XML file saved in the utf-16 byte representation,
    // and we want to send it over the connection using the utf-16 byte representation...

    // First the file into a Chilkat StringBuilder.
    // Tell the LoadFile method that we are reading utf-16 bytes..
    var sbXml = new chilkat.StringBuilder();
    success = sbXml.LoadFile("qa_data/xml/myUtf16.xml","utf-16");
    if (success !== true) {
        console.log("Failed to load utf-16 XML file..");
        return;
    }

    // Tell the socket object that we wish to send the utf-16 byte representation of the string.
    socket.StringCharset = "utf-16";

    // Send the string as utf-16 bytes.
    success = socket.SendSb(sbXml);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // Let's say we wanted to instead send the string as utf-8 bytes.
    // Just tell the socket object...
    socket.StringCharset = "utf-8";

    // Send the string as utf-8 bytes.
    success = socket.SendSb(sbXml);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // If our XML file was utf-8, then just tell the StringBuilder that we're reading utf-8.
    // Once the text is properly contained in the StringBuilder, we can send the contents in any other charset (windows-1252, utf-16, utf-8, etc.) 
    // as long as it make sense (i.e. we obviously can't send Japanese text using a single-byte charset such as Windows-1252).
    success = sbXml.LoadFile("qa_data/xml/myUtf8.xml","utf-8");
    if (success !== true) {
        console.log("Failed to load utf-8 XML file..");
        return;
    }

    // Send as utf-16
    socket.StringCharset = "utf-16";

    // Send the string as utf-16 bytes.
    success = socket.SendSb(sbXml);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // ...
    // ...

}

chilkatExample();