rudeshark.net/src/server/api/endpoints/users/recommendation.ts

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/**
* Module dependencies
*/
const ms = require('ms');
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import $ from 'cafy';
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import User, { pack } from '../../../../models/user';
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import getFriends from '../../common/get-friends';
/**
* Get recommended users
*
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* @param {any} params
* @param {any} me
* @return {Promise<any>}
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*/
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module.exports = (params, me) => new Promise(async (res, rej) => {
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// Get 'limit' parameter
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const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
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if (limitErr) return rej('invalid limit param');
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// Get 'offset' parameter
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const [offset = 0, offsetErr] = $(params.offset).optional.number().min(0).$;
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if (offsetErr) return rej('invalid offset param');
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// ID list of the user itself and other users who the user follows
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const followingIds = await getFriends(me._id);
const users = await User
.find({
_id: {
$nin: followingIds
},
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$or: [
{
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'lastUsedAt': {
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$gte: new Date(Date.now() - ms('7days'))
}
}, {
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host: { $ne: null }
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}
]
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}, {
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limit: limit,
skip: offset,
sort: {
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followersCount: -1
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}
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});
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// Serialize
res(await Promise.all(users.map(async user =>
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await pack(user, me, { detail: true }))));
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});