catstodon/app/javascript/mastodon/api/notifications.ts

import api, { apiRequest, getLinks } from 'mastodon/api';
import type { ApiNotificationGroupsResultJSON } from 'mastodon/api_types/notifications';

export const apiFetchNotifications = async (params?: {
  exclude_types?: string[];
  max_id?: string;
}) => {
  const response = await api().request<ApiNotificationGroupsResultJSON>({
    method: 'GET',
    url: '/api/v2_alpha/notifications',
    params,
  });

  const { statuses, accounts, notification_groups } = response.data;

  return {
    statuses,
    accounts,
    notifications: notification_groups,
    links: getLinks(response),
  };
};

export const apiClearNotifications = () =>
  apiRequest<undefined>('POST', 'v1/notifications/clear');