badger

id: badger title: Badger

A fast key-value DB using dgraph-io/badger

Table of Contents

• Signatures
• Installation
• Examples
• Config
• Default Config

Signatures

func New(config ...Config) Storage
func (s *Storage) Get(key string) ([]byte, error)
func (s *Storage) GetWithContext(ctx context.Context, key string) ([]byte, error)
func (s *Storage) Set(key string, val []byte, exp time.Duration) error
func (s *Storage) SetWithContext(ctx context.Context, key string, val []byte, exp time.Duration) error
func (s *Storage) Delete(key string) error
func (s *Storage) DeleteWithContext(ctx context.Context, key string) error
func (s *Storage) Reset() error
func (s *Storage) ResetWithContext(ctx context.Context) error
func (s *Storage) Close() error
func (s *Storage) Conn() *badger.DB

Note: The context methods are dummy methods and don't have any functionality, as Badger does not support context cancellation in its client library. They are provided for compliance with the Fiber storage interface.

Installation

Badger is tested on the 2 last Go versions with support for modules. So make sure to initialize one first if you didn't do that yet:

go mod init github.com/<user>/<repo>

And then install the badger implementation:

go get github.com/gofiber/storage/badger/v2

Examples

Import the storage package.

import "github.com/gofiber/storage/badger/v2"

You can use the following possibilities to create a storage:

// Initialize default config
store := badger.New()

// Initialize custom config
store := badger.New(badger.Config{
	Database:   "./fiber.badger",
	Reset:      false,
	GCInterval: 10 * time.Second,
})

Config

type Config struct {
	// Database name
	//
	// Optional. Default is "./fiber.badger"
	Database string

	// Reset clears any existing keys in existing Table
	//
	// Optional. Default is false
	Reset bool

	// Time before deleting expired keys
	//
	// Optional. Default is 10 * time.Second
	GCInterval time.Duration

	// BadgerOptions is a way to set options in badger
	//
	// Optional. Default is badger.DefaultOptions("./fiber.badger")
	BadgerOptions badger.Options

	// Logger is the default logger used by badger
	//
	// Optional. Default is nil
	Logger badger.Logger

	// UseLogger define if any logger will be used
	//
	// Optional. Default is false
	UseLogger bool
}

Default Config

var ConfigDefault = Config{
	Database:      "./fiber.badger",
	Reset:         false,
	GCInterval:    10 * time.Second,
	BadgerOptions: badger.DefaultOptions("./fiber.badger").WithLogger(nil),
	Logger:        nil,
	UseLogger:     false,
}