display-deployment-version-demo/index.js at main · cycleplatform/display-deployment-version-demo · GitHub

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const express = require('express');

const app = express();
const deploymentVersion = process.env.CYCLE_DEPLOYMENT_VERSION;

// Define a function to handle all specified routes
const commonHandler = (req, res) => {
  const htmlContent = `
      <html>
      <head>
        <title>Deployments Data</title>
        <style>
          body {
            background-color: #282c34;
            color: white; /* White text */
            height: 100vh; /* Full height */
            margin: 0;
            display: flex;
            justify-content: center; /* Center horizontally */
            align-items: center; /* Center vertically */
            font-family: Arial, sans-serif;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: calc(10px + 2vmin);
            color: white;
          }
          pre {
            font-size: 32px;
            line-height: 1.5;
            overflow: auto; /* Enables scrolling if content is too wide */
          }
          p {
            font-size: 1.17em;
          }
        </style>
      </head>
      <body>
        <img src="https://static.cycle.io/icons/logo/logo-white.svg" className="App-logo" alt="logo" width="400px" />
        <p><b>Deployment Version</b>: ${deploymentVersion}<p>
      </body>
      </html>
    `;
  res.send(htmlContent);
};

// Define routes
app.get('/_health', (req, res) => {
  res.status(200).json({ message: 'OK' });
});

app.get('/', commonHandler);
app.get('/apple', commonHandler);
app.get('/orange', commonHandler);
app.get('/banana', commonHandler);

const server = app.listen(3000, () => {
  console.log('Server is running on port 3000');
});

process.on('SIGINT', () => {
  console.log('Received SIGINT, shutting down server...');
  server.close(() => {
    console.log('Server has been shut down.');
    process.exit(0);
  });
});