Nano ID: Secure URL-friendly unique string ID generator

import express from 'express';
import { nanoid } from 'nanoid';
import { customAlphabet } from 'nanoid';

const app = express();
const createOrderId = customAlphabet('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', 8);

app.use(express.json());

app.post('/api/users', async (req, res) => {
  const user = {
    id: nanoid(),
    email: req.body.email,
    username: req.body.username,
    createdAt: new Date().toISOString()
  };
  
  await db.users.create(user);
  res.json({ success: true, userId: user.id });
});

app.post('/api/orders', async (req, res) => {
  const order = {
    id: createOrderId(),
    userId: req.body.userId,
    items: req.body.items,
    total: req.body.total,
    status: 'pending'
  };
  
  await db.orders.create(order);
  res.json({ orderId: order.id, status: order.status });
});