Install an SSL Certificate on a Node.js Server

1、Download the Node.js certificate from the site’s admin panel and extract it as follows:

2. Modify your server-side script file as follows:

// server.js
import https from "https";
import fs from "fs";
import express from "express"; // using Express as an example
const app = express();

// Load the SSL certificate
const options = {
  key: fs.readFileSync("/etc/ssl/mydomain/private.key"), // corresponds to the extracted key file
  cert: fs.readFileSync("/etc/ssl/mydomain/certificate.pem"), // corresponds to the extracted pem file
};

// Example route
app.get("/", (req, res) => {
  res.send("Hello, HTTPS world!");
});

// Create an HTTPS server
https.createServer(options, app).listen(443, () => {
  console.log("HTTPS server running on port 443");
});