grab portals via hypercore-archiver

index.js

var archiver = require('hypercore-archiver')
var swarm = require('hypercore-archiver/swarm')
var ram = require('random-access-memory')
var hyperdrive = require('hyperdrive')
var discovery = require('hyperdiscovery')

module.exports = function (rotondeKey) {
  var portals = archiver('./data', {sparse: true})
  swarm(portals)

  var archive = hyperdrive(ram, rotondeKey)
  archive.on('ready', function () {
    discovery(archive)
  })

  archive.readFile('/portal.json', 'utf8', function (err, data) {
    if (err) throw err
    addPortals(JSON.parse(data).port)
  })

  function addPortals (data) {
    data.map(function (portal) {
      portals.add(portal)
    })
  }
}