README.md

SPA Webserver

This is the webserver configuration I use local for production preview or inside docker container, mostly to host angular apps.

Configuration

You can configure the server, changing the values of the config object.

// TODO: Add attribute table with default values and description

Dependencies

• express
• compression

server.js

// Imports
const fs = require('fs');
const https = require('https');
const http = require('http');
const express = require('express');
const compression = require('compression');
const app = express();

// Config
const config = {
  appFolder: `${__dirname}/www`,
  forceHttps: false,
  hostName: 'localhost',
  ports: {
    http: 9080,
    https: 9443,
  },
  credentials: {
    key: `${__dirname}/certificates/ssl.key`,
    cert: `${__dirname}/certificates/ssl.crt`,
  },
};

// Add file compression
app.use(compression());

// Add optional https redirect
app.use((req, res, next) => {
  if (!config.forceHttps || req.secure) {
    next()
  } else {
    res.redirect(`https://${req.hostname}:${config.ports.https}${req.url}`);
  }
});

// Set up redirects for single page app
if (!fs.existsSync(config.appFolder) || !fs.existsSync(`${config.appFolder}/index.html`)) {
  console.error('App folder or index.html do not exist');
  return;
}
app.get('*.*', express.static(config.appFolder, {
  maxAge: '1m',
}));
app.get('*', (_req, res) => {
  res.status(200).sendFile(`/`, {
    root: config.appFolder,
  });
});

// Create servers
http.createServer(app)
    .listen(config.ports.http, config.hostName, () => {
      console.log(`Http server started  ${config.hostName}:${config.ports.http}`);
    });

if (fs.existsSync(config.credentials.key) && fs.existsSync(config.credentials.cert)) {
  https.createServer({
      key: fs.readFileSync(config.credentials.key, 'utf8'),
      cert: fs.readFileSync(config.credentials.cert, 'utf8'),
    }, app)
    .listen(config.ports.https, config.hostName, () => {
      console.log(`Https server started  ${config.hostName}:${config.ports.http}`);
    });
} else {
  console.warn('Https certificates are not available');
}