Chat Router ​

The chat router pipeline is responsible for processing incoming chat messages. If the pipeline reaches the end, the chat message is displayed in the in-game chat.

The pipeline context also allows modifying the message, so that we can create formatted chat messages, remove certain elements of the message and more.

To further explain the chat router, we will use an example where we create a profanity filter, which replaces cursing words in chat messages.

[Middleware(For = PipelineType.ChatRouter)]
public class ProfanityFilterMiddleware
{
    private readonly ActionDelegate _next;
    
    public ProfanityFilterMiddleware(ActionDelegate next)
    {
        _next = next;
    }

    public Task ExecuteAsync(ChatRouterPipelineContext context)
    {
        context.MessageText = context.MessageText.Replace("fuck", "f**k");
        
        return _next(context);
    }
}

The process for creating a component for the chat router is exactly the same as controller actions, except for the pipeline type we use PipelineType.ChatRouter instead.

In the ExecuteAsync method, we pass a ChatRouterPipelineContext, which contains information about the chat message. In this case, we replace a curse word with it's censored version so that fuck is displayed as f**k in the chat.