@fanoutio/eventstream/build/AddressedEvents.js

Connect-compatible middleware that enables the easy creation of EventStream endpoints

import Debug from 'debug';
const debug = Debug('eventstream');
export default class AddressedEvents {
    listeners = [];
    addListener(fn) {
        this.listeners.push(fn);
        debug('AddressedEvents listener added, ' + this.listeners.length + ' listeners');
        return () => {
            this.listeners = this.listeners.filter((x) => x !== fn);
            debug('AddressedEvents listener removed, ' + this.listeners.length + ' listeners');
        };
    }
    async addressedEvent(event) {
        debug('Calling addressedEvent with ' + this.listeners.length + ' listeners');
        for (const fn of this.listeners) {
            await fn(event);
        }
    }
}