# RunnableHandler Interface

Implement this interface to handle an action.

**Usage**

Create an Apex class that implements this interface as a callback for your action or event dispatcher.

```java
public class MySlashCommandDispatcher extends Slack.SlashCommandDispatcher {

    public override Slack.ActionHandler invoke(Slack.SlashCommandParameters parameters, Slack.RequestContext context) {
        return Slack.ActionHandler.ack(new Handler());
    }

    public class Handler implements Slack.RunnableHandler {
        public void run () {
            System.debug('My Callback');
        }
    }
}
```

## RunnableHandler Methods

`RunnableHandler` has the following method.

### run()

A callback method for the dispatcher handler, such as for a class that extends `Slack.SlashCommandDispatcher` or `Slack.ShortcutDispatcher`.

**Signature**

```java
public void run()
```

**Return Value**

Type: void