grissius/protocat

---
title: Basic middleware
---

```typescript
import { ProtoCat } from 'protocat'

const app = new ProtoCat()

app.addService(/* ... */)
app.use(call => {
  console.log(`[${call.type}] ${call.path}`)
  return next()
})
```

Before or after adding a service, you can add middlewares that get invoked on each request for all call types.

There is more to do with middlewares and more to know about them, see the advanced guides!