@daiso-tech/core
Version:
The library offers flexible, framework-agnostic solutions for modern web applications, built on adaptable components that integrate seamlessly with popular frameworks like Next Js.
49 lines • 1.73 kB
JavaScript
/**
* @module EventBus
*/
import { EventEmitter } from "node:events";
import {} from "../../../../event-bus/contracts/_module.js";
import {} from "../../../../execution-context/contracts/_module.js";
/**
* The `MemoryEventBusAdapter` is used for easily faking{@link IEventBus | `IEventBus`} for testing.
*
* IMPORT_PATH: `"@daiso-tech/core/event-bus/memory-event-bus"`
* @group Adapters
*/
export class MemoryEventBusAdapter {
eventEmitter;
/**
* @example
* ```ts
* import { MemoryEventBusAdapter } from "@daiso-tech/core/event-bus/memory-event-bus";
*
* const eventBusAdapter = new MemoryEventBusAdapter();
* ```
* You can also provide an {@link EventEmitter | `EventEmitter`} that will be used dispatching the events in memory.
* @example
* ```ts
* import { MemoryEventBusAdapter } from "@daiso-tech/core/event-bus/memory-event-bus";
* import { EventEmitter } from "node:events";
*
* const eventEmitter = new EventEmitter<any>();
* const eventBusAdapter = new MemoryEventBusAdapter(eventEmitter);
* ```
*/
constructor(eventEmitter = new EventEmitter()) {
this.eventEmitter = eventEmitter;
this.eventEmitter = eventEmitter;
}
addListener(_context, eventName, listener) {
this.eventEmitter.on(eventName, listener);
return Promise.resolve();
}
removeListener(_context, eventName, listener) {
this.eventEmitter.off(eventName, listener);
return Promise.resolve();
}
dispatch(_context, eventName, eventData) {
this.eventEmitter.emit(eventName, eventData);
return Promise.resolve();
}
}
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