Rocket.Chat/apps/meteor/app/integrations/server/triggers.ts

import { triggerHandler } from './lib/triggerHandler';
import { callbacks } from '../../../server/lib/callbacks';
import { afterLeaveRoomCallback } from '../../../server/lib/callbacks/afterLeaveRoomCallback';

const callbackHandler = function _callbackHandler(eventType: string) {
	return function _wrapperFunction(...args: any[]) {
		return triggerHandler.executeTriggers(eventType, ...args);
	};
};

callbacks.add(
	'afterSaveMessage',
	(message, { room }) => callbackHandler('sendMessage')(message, room),
	callbacks.priority.LOW,
	'integrations-sendMessage',
);
callbacks.add('afterCreateChannel', callbackHandler('roomCreated'), callbacks.priority.LOW, 'integrations-roomCreated');
callbacks.add('afterCreatePrivateGroup', callbackHandler('roomCreated'), callbacks.priority.LOW, 'integrations-roomCreated');
callbacks.add('afterCreateUser', callbackHandler('userCreated'), callbacks.priority.LOW, 'integrations-userCreated');
callbacks.add('afterJoinRoom', callbackHandler('roomJoined'), callbacks.priority.LOW, 'integrations-roomJoined');
afterLeaveRoomCallback.add(callbackHandler('roomLeft'), callbacks.priority.LOW, 'integrations-roomLeft');
callbacks.add('afterRoomArchived', callbackHandler('roomArchived'), callbacks.priority.LOW, 'integrations-roomArchived');
callbacks.add('afterFileUpload', callbackHandler('fileUploaded'), callbacks.priority.LOW, 'integrations-fileUploaded');