Put Get

var levelup = require("levelup")
var leveljs = require("level-js")
var db = levelup("./demo", {db: leveljs})

db.put("wow", "mom", function (err, reply) {
  if (err) return console.log(err)
  db.get("wow", function (err, reply) {
    if (err) return console.log(err)
    console.log("Got: '%s'", reply)
  })
})

ReadStream

var levelup = require("levelup")
var leveljs = require("level-js")
var terminus = require("terminus")
var db = levelup("./stream", {db: leveljs})

db.batch()
  .put("a", "aardvark")
  .put("b", "beaver")
  .put("c", "cat")
  .put("d", "dolphin")
  .put("e", "earwig")
  .write(function (err, reply) {
    db.readStream({start: "c", end: "d"})
      .pipe(terminus.tail({objectMode: true}, function (record) {
        console.log("%s: %s", record.key, record.value)
      }))
  })