postgres

README

---

id: postgres title: Postgres

A Postgres storage driver using jackc/pgx.

Note: Requires Go 1.20 and above

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() *pgxpool.Pool

Installation

Postgres 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 postgres implementation:

go get github.com/gofiber/storage/postgres/v3

Examples

Import the storage package.

import "github.com/gofiber/storage/postgres/v3"

You can use the following possibilities to create a storage:

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

// Initialize custom config
store := postgres.New(postgres.Config{
	DB:              dbPool,
	Table:           "fiber_storage",
	Reset:           false,
	GCInterval:      10 * time.Second,
})

Config

// Config defines the config for storage.
type Config struct {
	// DB pgxpool.Pool object will override connection uri and other connection fields
	//
	// Optional. Default is nil
	DB *pgxpool.Pool

	// Connection string to use for DB. Will override all other authentication values if used
	//
	// Optional. Default is ""
	ConnectionURI string

	// Host name where the DB is hosted
	//
	// Optional. Default is "127.0.0.1"
	Host string

	// Port where the DB is listening on
	//
	// Optional. Default is 5432
	Port int

	// Server username
	//
	// Optional. Default is ""
	Username string

	// Server password
	//
	// Optional. Default is ""
	Password string

	// Database name
	//
	// Optional. Default is "fiber"
	Database string

	// Table name
	//
	// Optional. Default is "fiber_storage"
	Table string

	// The SSL mode for the connection
	//
	// Optional. Default is "disable"
	SSLMode 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
}

Default Config

// ConfigDefault is the default config
var ConfigDefault = Config{
	ConnectionURI: "",
	Host:          "127.0.0.1",
	Port:          5432,
	Database:      "fiber",
	Table:         "fiber_storage",
	SSLMode:       "disable",
	Reset:         false,
	GCInterval:    10 * time.Second,
}

Documentation

Index

• Variables
• func GetUrl() string
• type Config
• type Storage
  • func New(config ...Config) *Storage
  • func (s *Storage) Close() error
  • func (s *Storage) Conn() *pgxpool.Pool
  • func (s *Storage) Delete(key string) error
  • func (s *Storage) Get(key string) ([]byte, error)
  • func (s *Storage) Reset() error
  • func (s *Storage) Set(key string, val []byte, exp time.Duration) error

Variables

var ConfigDefault = Config{
	ConnectionURI: "",
	Host:          "127.0.0.1",
	Port:          5432,
	Database:      "fiber",
	Table:         "fiber_storage",
	SSLMode:       "disable",
	Reset:         false,
	GCInterval:    10 * time.Second,
}

ConfigDefault is the default config

Functions

func GetUrl

func GetUrl() string

Types

type Config

type Config struct {
	// DB pgxpool.Pool object will override connection uri and other connection fields
	//
	// Optional. Default is nil
	DB *pgxpool.Pool

	// Connection string to use for DB. Will override all other authentication values if used
	//
	// Optional. Default is ""
	ConnectionURI string

	// Host name where the DB is hosted
	//
	// Optional. Default is "127.0.0.1"
	Host string

	// Port where the DB is listening on
	//
	// Optional. Default is 5432
	Port int

	// Server username
	//
	// Optional. Default is ""
	Username string

	// Server password
	//
	// Optional. Default is ""
	Password string

	// Database name
	//
	// Optional. Default is "fiber"
	Database string

	// Table name
	//
	// Optional. Default is "fiber_storage"
	Table string

	// The SSL mode for the connection
	//
	// Optional. Default is "disable"
	SSLMode 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
}

Config defines the config for storage.

type Storage

type Storage struct {
	// contains filtered or unexported fields
}

Storage interface that is implemented by storage providers

func New

func New(config ...Config) *Storage

New creates a new storage

func (*Storage) Close

func (s *Storage) Close() error

Close the database

func (*Storage) Conn

func (s *Storage) Conn() *pgxpool.Pool

Return database client

func (*Storage) Delete

func (s *Storage) Delete(key string) error

Delete entry by key

func (*Storage) Get

func (s *Storage) Get(key string) ([]byte, error)

Get value by key

func (*Storage) Reset

func (s *Storage) Reset() error

Reset all entries, including unexpired

func (*Storage) Set

func (s *Storage) Set(key string, val []byte, exp time.Duration) error

Set key with value