# HRPC Server Tutorial

## Simple Proto Server

```js
const hrpc = require('hrpc')
const server = hrpc.createServer()

server.register('add', {
  async add({a, b}) { return {sum: a+b} }
})

swarm.on('connection', conn => {
  server.pipe(conn).pipe(server)
})
```

**Client**:
const client = hrpc.createClient(conn)
const res = await client.add({a:1, b:2})