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141 lines
3.4 KiB
Markdown
141 lines
3.4 KiB
Markdown
---
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id: postgres
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title: Postgres
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---
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[](https://gofiber.io/discord)
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A Postgres storage driver using [jackc/pgx](https://github.com/jackc/pgx).
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### Table of Contents
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- [Signatures](#signatures)
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- [Installation](#installation)
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- [Examples](#examples)
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- [Config](#config)
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- [Default Config](#default-config)
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### Signatures
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```go
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func New(config ...Config) Storage
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func (s *Storage) Get(key string) ([]byte, error)
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func (s *Storage) GetWithContext(ctx context.Context, key string) ([]byte, error)
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func (s *Storage) Set(key string, val []byte, exp time.Duration) error
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func (s *Storage) SetWithContext(ctx context.Context, key string, val []byte, exp time.Duration) error
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func (s *Storage) Delete(key string) error
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func (s *Storage) DeleteWithContext(ctx context.Context, key string) error
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func (s *Storage) Reset() error
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func (s *Storage) ResetWithContext(ctx context.Context) error
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func (s *Storage) Close() error
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func (s *Storage) Conn() *pgxpool.Pool
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```
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### Installation
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Postgres is tested on the 2 last [Go versions](https://golang.org/dl/) with support for modules. So make sure to initialize one first if you didn't do that yet:
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```bash
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go mod init github.com/<user>/<repo>
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```
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And then install the postgres implementation:
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```bash
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go get github.com/gofiber/storage/postgres/v3
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```
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### Examples
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Import the storage package.
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```go
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import "github.com/gofiber/storage/postgres/v3"
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```
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You can use the following possibilities to create a storage:
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```go
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// Initialize default config
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store := postgres.New()
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// Initialize custom config
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store := postgres.New(postgres.Config{
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DB: dbPool,
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Table: "fiber_storage",
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Reset: false,
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GCInterval: 10 * time.Second,
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})
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```
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### Config
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```go
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// Config defines the config for storage.
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type Config struct {
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// DB pgxpool.Pool object will override connection uri and other connection fields
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//
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// Optional. Default is nil
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DB *pgxpool.Pool
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// Connection string to use for DB. Will override all other authentication values if used
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//
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// Optional. Default is ""
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ConnectionURI string
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// Host name where the DB is hosted
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//
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// Optional. Default is "127.0.0.1"
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Host string
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// Port where the DB is listening on
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//
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// Optional. Default is 5432
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Port int
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// Server username
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//
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// Optional. Default is ""
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Username string
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// Server password
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//
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// Optional. Default is ""
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Password string
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// Database name
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//
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// Optional. Default is "fiber"
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Database string
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// Table name
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//
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// Optional. Default is "fiber_storage"
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Table string
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// The SSL mode for the connection
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//
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// Optional. Default is "disable"
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SSLMode string
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// Reset clears any existing keys in existing Table
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//
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// Optional. Default is false
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Reset bool
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// Time before deleting expired keys
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//
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// Optional. Default is 10 * time.Second
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GCInterval time.Duration
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}
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```
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### Default Config
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```go
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// ConfigDefault is the default config
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var ConfigDefault = Config{
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ConnectionURI: "",
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Host: "127.0.0.1",
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Port: 5432,
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Database: "fiber",
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Table: "fiber_storage",
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SSLMode: "disable",
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Reset: false,
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GCInterval: 10 * time.Second,
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}
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```
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