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Node.js Examples

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(Node.js) TCP Socket Connect through HTTP Proxy

Demonstrates how to connect through an HTTP proxy server.

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() {

    var socket = new chilkat.Socket();

    var success;
    success = socket.UnlockComponent("Anything for 30-day trial");
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // To connect through an HTTP proxy, set the HttpProxyHostname
    // and HttpProxyPort properties to the hostname (or IP address)
    // and port of the HTTP proxy.  Typical port numbers used by
    // HTTP proxy servers are 3128 and 8080.
    socket.HttpProxyHostname = "www.my-http-proxy.com";
    socket.HttpProxyPort = 3128;

    // Important:  Your HTTP proxy server must allow non-HTTP
    // traffic to pass.  Otherwise this does not work.

    // Connect (via the HTTP proxy) to port 5555 of 192.168.1.108.
    // hostname may be a domain name or IP address.
    var hostname = "192.168.1.108";
    var ssl = false;
    var maxWaitMillisec = 20000;
    success = socket.Connect(hostname,5555,ssl,maxWaitMillisec);
    if (success !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // Set maximum timeouts for reading an writing (in millisec)
    socket.MaxReadIdleMs = 10000;
    socket.MaxSendIdleMs = 10000;

    // The ficticious server (in this example) is going to send a "Hello World!" 
    // message.  Read it:
    var receivedMsg = socket.ReceiveString();
    if (socket.LastMethodSuccess !== true) {
        console.log(socket.LastErrorText);
        return;
    }

    // Close the connection with the server
    // Wait a max of 20 seconds (20000 millsec)
    success = socket.Close(20000);

    console.log(receivedMsg);

}

chilkatExample();

 

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