(Node.js) HTTP HEAD Request

Sends an HTTP HEAD request and gets the response.

Note: The response to an HTTP HEAD request is always just the response header. The reponse body is always 0 length (thus the reason it's called a "HEAD" request..)

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 http = new chilkat.Http();

    // If the URL uses "https://", then the connection will be TLS.
    // Otherwise it will be TCP.
    // resp: HttpResponse
    var resp = http.GetHead("https://example-code.com/");
    if (http.LastMethodSuccess !== true) {
        // A failure is when we don't get any response.  It could be a timeout, an inability to connect, etc.
        // For example, a "404 Not Found" response is still a response, and thus deemed success in terms of the API..
        console.log(http.LastErrorText);
        return;
    }

    // Examine the response.
    console.log("Status Code = " + resp.StatusCode);
    console.log("Status Line = " + resp.StatusLine);
    console.log("Status Text = " + resp.StatusText);
    console.log("Full Response Header:");
    console.log(resp.Header);
    console.log("----");
    var numHeaderFields = resp.NumHeaderFields;
    console.log("Num Header Fields: " + numHeaderFields);
    var i;
    for (i = 0; i <= numHeaderFields - 1; i++) {
        console.log(resp.GetHeaderName(i) + ": " + resp.GetHeaderValue(i));
    }


}

chilkatExample();