Trait AppEventEmitter

Source

pub trait AppEventEmitter: Send + Sync {
    // Required methods
    fn emit(&self, event: AppEvent);
    fn clone_box(&self) -> Box<dyn AppEventEmitter>;
}

Expand description

Trait for emitting application events.

This abstraction keeps event plumbing consistent across domains and prevents channel types from becoming part of the public API surface.

§Implementations

NoopEmitter - For tests and CLI contexts that don’t need events
Adapter-specific implementations (Tauri, Axum SSE, etc.)

§Example

// In a service
fn start_server(&self, emitter: Arc<dyn AppEventEmitter>) {
    // ... start server logic ...
    emitter.emit(AppEvent::McpServerStarted { ... });
}