legendaryjs/tools/index.js

LegendaryJS – The ultimate backend framework for speed, power, and simplicity.

let stats = {
  requests: 0,
  errors: 0,
  lastError: '',
  activeUsers: new Set()
};

function trackRequest(req, res, next) {
  stats.requests++;
  next();
}

function trackError(err, req, res, next) {
  stats.errors++;
  stats.lastError = err.message;
  next(err);
}

function socketConnection(socket) {
  stats.activeUsers.add(socket.id);
  socket.on('disconnect', () => {
    stats.activeUsers.delete(socket.id);
  });
}

function getStats() {
  return {
    ...stats,
    activeUsers: stats.activeUsers.size
  };
}

module.exports = { trackRequest, trackError, socketConnection, getStats };