Why should you care?

Clear route files mirror Angular feature modules and OpenAPI documentation.

See it live — copy this example

Paste into your MeanVerse project (Angular + Express + MongoDB), then run with ng serve / node / mongosh as noted.

// routes/accounts.routes.ts
import { Router } from 'express';
export const accountsRouter = Router();

accountsRouter.get('/', async (_req, res, next) => {
  try {
    const accounts = await Account.find({ tenantId: _req.tenantId }).limit(50);
    res.json(accounts);
  } catch (e) { next(e); }
});

accountsRouter.get('/:id', async (req, res, next) => {
  try {
    const acct = await Account.findOne({ _id: req.params.id, tenantId: req.tenantId });
    if (!acct) return res.status(404).end();
    res.json(acct);
  } catch (e) { next(e); }
});

accountsRouter.post('/', validateCreateAccount, async (req, res, next) => { /* ... */ });

What happened?

• Router isolates account endpoints.
• GET / lists collection; GET /:id reads one.
• validateCreateAccount middleware runs only on POST.

Practice next

1. Split routes by resource: accounts, transfers, users.
2. Use mergeParams for nested /accounts/:id/transactions.
3. Return proper HTTP status: 201 create, 204 delete.
4. Add PATCH /:id for partial account updates.
5. Mount router at /api/v1/accounts in app.ts.

Remember

Router = mini-app for one resource. HTTP verb + path = REST convention. Validate before handler logic runs.

Open banking API

MeanVerse exposes account routes per PSD2 read/write scopes.

Outcome: Route-level scope middleware enforces consent boundaries.