index.js

const fs = require("fs");
const express = require('express');
const http = require("http");
const https = require("https");

// Express
const app = express();
app.use(express.json());
app.use(express.urlencoded({ extended: true }));

let sslState = 1; //0 - Off; 1 - On;

if (fs.existsSync('./certs/key.pem') && fs.existsSync('./certs/cert.pem') && sslState == 1) //Use SSL
{
    const PORT = process.env.PORT || 443;
    const https = require("https");
    let options = {
        key: fs.readFileSync('./certs/key.pem'),
        cert: fs.readFileSync('./certs/cert.pem'),
    };
    const server = https.createServer(options, app).listen(PORT, (err) => {
        if (err) {
            return console.error(err);
        }
    });
    console.log(`TCP server is listening on ${PORT}`);
    initializeRoutes(app, server);
}
else //Load HTTP instead
{
    const PORT = process.env.PORT || 80;
    const http = require("http");
    const server = http.createServer(app).listen(PORT, (err) => {
        if (err) {
            return console.error(err);
        }

    });
    console.log(`TCP server is listening on ${PORT}`);
    initializeRoutes(app, server);
}

app.get('/', function(req, res)
{
    res.status(200).json({ message: "ThatFarmServer is UP and Running." });
});

// Function to initialize routes
function initializeRoutes(app, server) {
    //routes
    require('./facebook')(app);
    require('./firebase')(app);
    require('./farm')(app);
}