curli-bus/dist/EventBus/EventBus.js

Simple Command Bus Implementation (CQRS) for NodeJS/Typescript.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class EventBus {
    constructor() {
        this.subscribersMap = {};
    }
    register(eventSubscriber) {
        const eventClassName = eventSubscriber.getEventName();
        if (!this.subscribersMap.hasOwnProperty(eventClassName)) {
            this.subscribersMap[eventClassName] = [];
        }
        this.subscribersMap[eventClassName].push(eventSubscriber);
    }
    publish(events) {
        if (Array.isArray(events)) {
            events.forEach((event) => {
                this.publishSingleEvent(event);
            });
        }
        else {
            this.publishSingleEvent(events);
        }
    }
    publishSingleEvent(event) {
        var _a;
        if (!this.subscribersMap.hasOwnProperty(event.eventName)) {
            throw new Error(`There is not a subscriber for ${event.eventName} event.`);
        }
        event.dateTimeOccurred = (_a = event.dateTimeOccurred) !== null && _a !== void 0 ? _a : new Date();
        this.subscribersMap[event.eventName].map((subscriber) => {
            subscriber.handle(event);
        });
    }
}
exports.EventBus = EventBus;