# createContextToken

### **Importing** <a href="#importing" id="importing"></a>

```typescript
import { createContextToken } from '@marblejs/core';
```

### **Type declaration**

```
createContextToken :: () -> ContextToken
createContextToken :: string -> ContextToken
```

### **Example**

The following example creates and associates injection token with Marble.js WebSocket server.

```typescript
import { createContextToken } from '@marblejs/core';
import { WebSocketServerConnection } from '@marblejs/websockets';

const WebSocketServerToken =
    createContextToken<WebSocketServerConnection>('WebSocketServerToken');
```

{% hint style="info" %}
Always remember add a string name for created lookup token.&#x20;
{% endhint %}