Route

const Koa = require('koa');
const Router = require('koa-router');
const app = new Koa();
const router = new Router();

// middleware function for all routes
const globalMiddleware = async (ctx, next) => {
  console.log('Global middleware');
  await next();
}

// middleware function for users route
const usersMiddleware = async (ctx, next) => {
  console.log('Users middleware');
  await next();
}

// define routes
router.get('/users', usersMiddleware, async (ctx, next) => {
  ctx.body = 'User list';
});

router.get('/posts', async (ctx, next) => {
  ctx.body = 'Post list';
});

// print all route settings
console.log('Current route settings:');
router.stack.forEach((layer) => {
  console.log(`Route: ${layer.path}`);
  layer.stack.forEach((middleware) => {
    console.log(`Middleware name: ${middleware.name || 'anonymous'}`);
    console.log(`Middleware source code: ${middleware.toString()}`);
  });
});

app.use(globalMiddleware);
app.use(router.routes());

app.listen(3000);

Current route settings:
===========
Route: /users
  Middleware name: usersMiddleware
  Middleware source code: async (ctx, next) => {
    console.log('Users middleware');
    await next();
  }
  Middleware name: anonymous
===========
Route: /posts
  Middleware name: anonymous