@loopback/docs/site/apidocs/socketio.socketio.md

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---
lang: en
title: 'API docs: socketio.socketio'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/extensions/socketio
permalink: /doc/en/lb4/apidocs.socketio.socketio.html
---

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[Home](./index.md) &gt; [@loopback/socketio](./socketio.md) &gt; [socketio](./socketio.socketio.md)

## socketio namespace

**Signature:**

```typescript
export declare namespace socketio 
```

## Functions

<table><thead><tr><th>

Function


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

[connect()](./socketio.socketio.connect.md)


</td><td markdown="1">

Decorate a controller method for `connect`


</td></tr>
<tr><td markdown="1">

[disconnect()](./socketio.socketio.disconnect.md)


</td><td markdown="1">

Decorate a controller method for `disconnect`


</td></tr>
<tr><td markdown="1">

[io()](./socketio.socketio.io.md)


</td><td markdown="1">


</td></tr>
<tr><td markdown="1">

[namespace(name)](./socketio.socketio.namespace.md)


</td><td markdown="1">


</td></tr>
<tr><td markdown="1">

[socket()](./socketio.socketio.socket.md)


</td><td markdown="1">


</td></tr>
<tr><td markdown="1">

[subscribe(messageTypes)](./socketio.socketio.subscribe.md)


</td><td markdown="1">

Decorate a method to subscribe to socketio events. For example,

```ts
@socketio.subscribe('chat message')
async function onChat(msg: string) {
}
```


</td></tr>
</tbody></table>