Get similar users

similarUsers.js

router.get('/user', auth, async function (req, res) {
  const {username} = req
  const similarity = helper.sortByAlgorithm(await db.similarity.getBy(function (user) {
    return _.includes(user.users, username)
  }), 'pcc')

  const usersSimilarities = await Promise.map(similarity, async function (similarityData) {
    return {
      ...similarityData,
      user: await db.user.get(_.remove(similarityData.users, function (user) {
        return user !== username
      })[0]),
    }
  })

  res.render('users', {usersSimilarities})
})