Database

Sometimes you need a backend storage, i.e redis, which will keep your session data on server restarts and scale horizontally.

Registering a session database can be done through a single call of sessions.UseDatabase(database).

Iris implements three (3) builtin session databases for redis, badger and boltdb. These session databases are implemented via the iris/sessions/sessiondb subpackage which you'll have to import.

1. import the gitbub.com/kataras/iris/sessions/sessiondb/redis or boltdb or badger,

2. initialize the database and

3. register it

For example, to register the redis session database:

import (
    "github.com/kataras/iris/v12"
    "github.com/kataras/iris/v12/sessions"

    // 1. Import the session database.
    "github.com/kataras/iris/v12/sessions/sessiondb/redis"
)

// 2. Initialize the database.
// These are the default values,
// you can replace them based on your running redis' server settings:
db := redis.New(redis.Config{
    Network:   "tcp",
    Addr:      "127.0.0.1:6379",
    Timeout:   time.Duration(30) * time.Second,
    MaxActive: 10,
    Password:  "",
    Database:  "",
    Prefix:    "",
    Delim:     "-",
    Driver:    redis.Redigo(), // redis.Radix() can be used instead.
})

// Optionally configure the underline driver:
// driver := redis.Redigo()
// driver.MaxIdle = ...
// driver.IdleTimeout = ...
// driver.Wait = ...
// redis.Config {Driver: driver}

// Close connection when control+C/cmd+C
iris.RegisterOnInterrupt(func() {
    db.Close()
})

sess := sessions.New(sessions.Config{
    Cookie:       "sessionscookieid",
    AllowReclaim: true,
})

// 3. Register it.
sess.UseDatabase(db)

// [...]

boltdb

import "os"
import "github.com/kataras/iris/v12/sessions/sessiondb/boltdb"

db, err := boltdb.New("./sessions.db", os.FileMode(0750))

badger

import "github.com/kataras/iris/v12/sessions/sessiondb/badger"

db, err := badger.New("./data")