node-level v0.2.4

node-level

A pure node.js implementation of LSM(log structured merge tree) based storage engine(inspired by leveldb).

Get started

Use in JavaScript or TypeScript:

const path = require('path')
const { Database } = require('node-level') // install from npm

async function main(){
  const db = new Database(path.resolve(__dirname, './db'))
  await db.put('foo', 'bar')
  console.log(
    (await db.get('foo')).toString()
  ) // 'bar'
}

main()

For more details, see documention

Roadmap

• TableBuilder
• TableReader
• TableCache
• LogWriter
• LogReader
• WriteBatch
• MemTable
• Database Recovery
• Version Manager
• Compaction
• Top-level API (put, get, del, batch, iterator, compactRange, ok)

Benchmark

environment : GitHub Action
key         : 16 bytes
value       : 100 bytes
total       : 10000
runners     : 10 
fillrandom  : 1154.48 ms total; 115.45 us/op

License

MIT License