In this article, we will learn to create HTTPS self-signed certificate and create a Node.js application using HTTPS Server.

STEP 1 - Download openssl for Windows

Download your compactible Openssl setup from https://slproweb.com/products/Win32OpenSSL.html

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Double click the OpenSSL file using default settings to complete the installation.

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STEP 2 - Set up OpenSSL for usage

In Windows, click Start > Run

In the Open box, type CMD and click OK

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A command prompt window appears,

Type the following command at the prompt and press Enter:

cd \OpenSSL-Win32

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The line changes to C:\OpenSSL-Win32

Type the following command at the prompt and press Enter,

set OPENSSL_CONF=c:\OpenSSL-Win32\bin\openssl.cfg

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Restart computer (mandatory)

STEP 3 - Generate a Certificate Signing Request (CSR) using OpenSSL on Windows
  1. In Windows, click Start > Run
  2. In the Open box, type CMD and click OK

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A command prompt window appears.

Type the following command at the prompt and press Enter:

cd \:OpenSSL-Win32\bin

The line changes to C:\OpenSSL-Win32\bin

Type the following command at the prompt and press Enter:

openssl req -newkey rsa:2048 -new -nodes -keyout key.pem -out csr.pem

Then Type the following command at the prompt and press Enter:

openssl x509 -req -days 365 -in csr.pem -signkey key.pem -out server.crt

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Which will create the following files in bin directory

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STEP 5 - Code

File Name: MainApp.js
  1. varhttp = require('http');
  2. varexpress = require('express');
  3. varapp = express();
  4. consthttpsPort = 1234;
  5. varhttps = require('https');
  6. varfs = require('fs');
  7. varoptions = {
  8. key: fs.readFileSync('./key.pem', 'utf8'),
  9. cert: fs.readFileSync('./server.crt', 'utf8')
  10. };
  11. //console.log("KEY: ", options.key)
  12. //console.log("CERT: ", options.cert)
  13. varsecureServer = https.createServer(options, app).listen(httpsPort, () => {
  14. console.log(">> CentraliZr listening at port " + httpsPort);
  15. });
  16. app.get('/sach', function(req, res) {
  17. res.sendFile(__dirname + '/public/index.htm');
  18. });
File Name - index.htm
  1. <html>
  3. <head>
  4. <title>My First HTTPS Secure Page</title>
  5. </head>
  7. <body> Welcome to NodeJs Tutorials.... By Sachin Ghadi. </body>
  9. </html>
Copy your csr.pem,key.pem,server.cert from C:\OpenSSL-Win32\bin to your applications root directory.

Create new folder in your directory and rename it as public and copy index.htm into it. The Folder Sturcture will look like this,

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STEP 6 - Code Execution

Install required packages like --> npm install express

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Execute code using the following command,

-->node MainApp.js

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Our application is now runing on 1234 port using localhost.

Now, open the latest browser (I am using Chrome) and enter the following URL.

https://localhost:1234

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Click on ADVANCED,

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Now Click on Proceed to localhost(unsafe).

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Success!

One more step to go, geeks...

Append/search in your URL. Now, your URL will be https://localhost:1234/sach

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We have done it ... enjoy!

If you have any doubts regarding the same, just mention it in the comments .