storage/ristretto

Ristretto

A Memory-bound storage driver using dgraph-io/ristretto.

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) Set(key string, val []byte, exp time.Duration) error
func (s *Storage) Delete(key string) error
func (s *Storage) Reset() error
func (s *Storage) Close() error
func (s *Storage) Conn() *ristretto.Cache

Installation

Ristretto 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 ristretto implementation:

go get github.com/gofiber/storage/ristretto

Examples

Import the storage package.

import "github.com/gofiber/storage/ristretto"

You can use the following possibilities to create a storage:

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

// Initialize custom config
store := ristretto.New(ristretto.Config{
  NumCounters: 1e7, // number of keys to track frequency of (10M).
  MaxCost:     1 << 30, // maximum cost of cache (1GB).
  BufferItems: 64, // number of keys per Get buffer.
})

Config

type Config struct {
  // NumCounters number of keys to track frequency of (10M).
  NumCounters int64

  // MaxCost maximum cost of cache (1GB).
  MaxCost     int64

  // BufferItems number of keys per Get buffer.
  BufferItems int64
}

Default Config

var ConfigDefault = Config{
  NumCounters: 1e7,
  MaxCost:     1 << 30,
  BufferItems: 64,
  DefaultCost: 1,
}