hyperdrive & hypergraph in same hyperdb

index.js

var hyperdb = require('hyperdb')
var sub = require('subhyperdb')
var hyperdrive = require('hyperdrive')
var hypergraph = require('hyper-graph-db')
var hyperdriveMessages = require('hyperdrive/lib/messages')

var dbName = process.argv[2]
var op = process.argv[3]

if (op !== 'read' && op !== 'write') {
  console.log('op has to be "read" or "write"')
  return 1
}

var db = hyperdb(dbName, {valueEncoding: 'binary', contentFeed: true})
var dbDrive = sub(db, '@drive', {valueEncoding: hyperdriveMessages.Stat})
var dbGraph = sub(db, '@graph', {valueEncoding: 'json'})

var drive = hyperdrive(null, null, {checkout: dbDrive})
var graph = hypergraph(null, null, {db: dbGraph})


db.on('ready', function() {
  console.log('db ready')
  if (op === 'write') {
    write(files)
  }
  else if (op === 'read') {
    read(dbDrive, 'drive')
    read(dbGraph, 'graph')
  }
})

function read(sub, name) {
  var stream = sub.createReadStream()
  stream.on('data', function(node) {
    console.log(name, node)
  })
}

var files = [
  {path: 'test.txt', content: 'hello!', title: 'it works' },
  {path: 'foo.txt', content: 'bazz!', title: 'yeah' }
]

function write(files) {
  files.forEach(function(file) {
    var buf = Buffer.from(file.content)
    drive.writeFile(file.path, buf, function(err, data) {
      if (err) console.log('err', err)
      else console.log('write finished')
    })

    var triple = {
      subject: 'file:' + file.path,
      predicate: 'title',
      object: file.title
    }
    graph.put(triple, function(err) {
      if (err) return console.log('error!', err)
    })
  })
}

package.json

{
  "name": "hyperdb-experiments",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "dependencies": {
    "hyper-graph-db": "github:frando/hyper-graph-db#master",
    "hyperdb": "github:mafintosh/hyperdb#master",
    "hyperdrive": "github:mafintosh/hyperdrive#hyperdb-backend",
    "subhyperdb": "github:frando/subhyperdb#master"
  },
  "devDependencies": {},
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Franz Heinzmann",
  "license": "MIT"
}