Document

Introduction

What is LotusDB

LotusDB is the most advanced key-value store written in Go, extremely fast, compatible with LSM tree and B+ tree, and optimization of badger and bbolt.

Key features:

• Combine the advantages of LSM and B+ tree
• Fast read/write performance
• Much lower read and space amplification than typical LSM

Design Overview

Community

Welcome to join the Slack channel and Discussions to connect with LotusDB team members and other users.

If you are a Chinese user, you are also welcome to join our WeChat group, scan the QR code and you will be invited:

Getting Started

package main

import (
	"github.com/lotusdblabs/lotusdb/v2"
)

func main() {
	// specify the options
	options := lotusdb.DefaultOptions
	options.DirPath = "/tmp/lotusdb_basic"

	// open a database
	db, err := lotusdb.Open(options)
	if err != nil {
		panic(err)
	}
	defer func() {
		_ = db.Close()
	}()

	// put a key
	err = db.Put([]byte("name"), []byte("lotusdb"), nil)
	if err != nil {
		panic(err)
	}

	// get a key
	val, err := db.Get([]byte("name"))
	if err != nil {
		panic(err)
	}
	println(string(val))

	// delete a key
	err = db.Delete([]byte("name"), nil)
	if err != nil {
		panic(err)
	}
}

see the examples for more details.