import $ from 'cafy'; import ID, { transform } from '../../../../misc/cafy-id'; import User from '../../../../models/user'; import Following from '../../../../models/following'; import { pack } from '../../../../models/user'; import { getFriendIds } from '../../common/get-friends'; import define from '../../define'; import { ApiError } from '../../error'; export const meta = { desc: { 'ja-JP': '指定したユーザーのフォロワー一覧を取得します。', 'en-US': 'Get followers of a user.' }, requireCredential: false, params: { userId: { validator: $.optional.type(ID), transform: transform, desc: { 'ja-JP': '対象のユーザーのID', 'en-US': 'Target user ID' } }, username: { validator: $.optional.str }, host: { validator: $.optional.nullable.str }, limit: { validator: $.optional.num.range(1, 100), default: 10 }, cursor: { validator: $.optional.type(ID), default: null as any, transform: transform, }, iknow: { validator: $.optional.bool, default: false, } }, errors: { noSuchUser: { message: 'No such user.', code: 'NO_SUCH_USER', id: '27fa5435-88ab-43de-9360-387de88727cd' } } }; export default define(meta, async (ps, me) => { const q: any = ps.userId != null ? { _id: ps.userId } : { usernameLower: ps.username.toLowerCase(), host: ps.host }; const user = await User.findOne(q); if (user === null) { throw new ApiError(meta.errors.noSuchUser); } const query = { followeeId: user._id } as any; // ログインしていてかつ iknow フラグがあるとき if (me && ps.iknow) { // Get my friends const myFriends = await getFriendIds(me._id); query.followerId = { $in: myFriends }; } // カーソルが指定されている場合 if (ps.cursor) { query._id = { $lt: ps.cursor }; } // Get followers const following = await Following .find(query, { limit: ps.limit + 1, sort: { _id: -1 } }); // 「次のページ」があるかどうか const inStock = following.length === ps.limit + 1; if (inStock) { following.pop(); } const users = await Promise.all(following.map(f => pack(f.followerId, me, { detail: true }))); return { users: users, next: inStock ? following[following.length - 1]._id : null, }; });