Type Alias AsyncEventResult

pub type AsyncEventResult<'a> = Pin<Box<dyn Future<Output = Result<(), Box<dyn Error + Send + Sync>>> + Send + 'a>>;

Trait for asynchronous event listeners

This trait is only available when the “async” feature is enabled.

Example

use mod_events::{AsyncEventListener, Priority, Event};
use std::future::Future;
use std::pin::Pin;

#[derive(Debug, Clone)]
struct UserRegistered {
    user_id: u64,
    email: String,
}

impl Event for UserRegistered {
    fn as_any(&self) -> &dyn std::any::Any {
        self
    }
}

struct AsyncEmailNotifier;

impl AsyncEventListener<UserRegistered> for AsyncEmailNotifier {
    fn handle<'a>(&'a self, event: &'a UserRegistered) -> Pin<Box<dyn Future<Output = Result<(), Box<dyn std::error::Error + Send + Sync>>> + Send + 'a>> {
        Box::pin(async move {
            // Async email sending logic
            println!("Async email sent to {}", event.email);
            Ok(())
        })
    }
}

Aliased Type

pub struct AsyncEventResult<'a> { /* private fields */ }