```js const DomainEvents = require('@tryghost/domain-events');
npm install @tryghost/domain-events``js
const DomainEvents = require('@tryghost/domain-events');
class MyEvent {
constructor(message) {
this.timestamp = new Date();
this.data = {
message
};
}
}
DomainEvents.subscribe(MyEvent, function handler(event) {
console.log(event.data.message);
});
const event = new MyEvent('hello world');
DomainEvents.dispatch(event);
``