ipfs-bch-wallet-consumer/config/passport.js

const passport = require('koa-passport')
const User = require('../src/adapters/localdb/models/users')
const Strategy = require('passport-local')

passport.serializeUser((user, done) => {
  done(null, user.id)
})

passport.deserializeUser(async (id, done) => {
  try {
    const user = await User.findById(id, '-password')
    done(null, user)
  } catch (err) {
    done(err)
  }
})

passport.use(
  'local',
  new Strategy(
    {
      usernameField: 'email',
      passwordField: 'password'
    },
    async (email, password, done) => {
      try {
        const user = await User.findOne({ email })
        if (!user) {
          return done(null, false)
        }

        try {
          const isMatch = await user.validatePassword(password)

          if (!isMatch) {
            return done(null, false)
          }

          done(null, user)
        } catch (err) {
          done(err)
        }
      } catch (err) {
        return done(err)
      }
    }
  )
)