misskey/src/server/api/endpoints/notifications/mark-all-as-read.ts

import { publishMainStream } from '@/services/stream.js';
import define from '../../define.js';
import { Notifications } from '@/models/index.js';

export const meta = {
	tags: ['notifications', 'account'],

	requireCredential: true as const,

	kind: 'write:notifications'
};

export default define(meta, async (ps, user) => {
	// Update documents
	await Notifications.update({
		notifieeId: user.id,
		isRead: false,
	}, {
		isRead: true
	});

	// 全ての通知を読みましたよというイベントを発行
	publishMainStream(user.id, 'readAllNotifications');
});