Rocket.Chat/apps/meteor/app/lib/server/methods/addUserToRoom.ts

import type { ServerMethods } from '@rocket.chat/ui-contexts';
import { Meteor } from 'meteor/meteor';

import { addUsersToRoomMethod } from './addUsersToRoom';

declare module '@rocket.chat/ui-contexts' {
	// eslint-disable-next-line @typescript-eslint/naming-convention
	interface ServerMethods {
		addUserToRoom(data: { rid: string; username: string }): void;
	}
}

Meteor.methods<ServerMethods>({
	async addUserToRoom(data) {
		const userId = Meteor.userId();
		if (!userId) {
			throw new Meteor.Error('error-invalid-user', 'Invalid user', {
				method: 'addUserToRoom',
			});
		}

		await addUsersToRoomMethod(userId, {
			rid: data.rid,
			users: [data.username],
		});
	},
});