2020-11-17 12:12:49 -05:00

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# Session
Session middleware for [Fiber](https://github.com/gofiber/fiber).
_NOTE: This middleware uses our [Storage](https://github.com/gofiber/storage) package to support various databases through a single interface. The default configuration for this middleware saves data to memory, see the examples below for other databases._
## Table of Contents
- [Signatures](#signatures)
- [Examples](#examples)
- [Config](#config)
- [Default Config](#default-config)
## Signatures
```go
func New(config ...Config) fiber.Handler
```
## Examples
First import the middleware from Fiber,
```go
import (
"github.com/gofiber/fiber/v2"
"github.com/gofiber/fiber/v2/middleware/session"
)
```
Then create a Fiber app with `app := fiber.New()`.
### Default Configuration
```go
// This stores all of your app's sessions
// Default middleware config
store := session.New()
// This panic will be catch by the middleware
app.Get("/", func(c *fiber.Ctx) error {
// get session from storage
sess, err := store.Get(c)
if err != nil {
panic(err)
}
// save session
defer sess.Save()
// Get value
name := sess.Get("name")
// Set key/value
sess.Set("name", "john")
// Delete key
sess.Delete("name")
// Destry session
if err := sess.Destroy(); err != nil {
panic(err)
}
return fmt.Fprintf(ctx, "Welcome %v", name)
})
```
### Custom Storage/Database
You can use any storage from our [storage](https://github.com/gofiber/storage/) package.
```go
storage := sqlite3.New() // From github.com/gofiber/storage/sqlite3
store := session.New(session.Config{
Storage: storage,
})
```
To use the the store, see the above example.
## Config
```go
// Config defines the config for middleware.
type Config struct {
// Allowed session duration
// Optional. Default value 24 * time.Hour
Expiration time.Duration
// Storage interface to store the session data
// Optional. Default value memory.New()
Storage fiber.Storage
// Name of the session cookie. This cookie will store session key.
// Optional. Default value "session_id".
CookieName string
// Domain of the CSRF cookie.
// Optional. Default value "".
CookieDomain string
// Path of the CSRF cookie.
// Optional. Default value "".
CookiePath string
// Indicates if CSRF cookie is secure.
// Optional. Default value false.
CookieSecure bool
// Indicates if CSRF cookie is HTTP only.
// Optional. Default value false.
CookieHTTPOnly bool
// Indicates if CSRF cookie is HTTP only.
// Optional. Default value false.
CookieSameSite string
// KeyGenerator generates the session key.
// Optional. Default value utils.UUID
KeyGenerator func() string
}
```
## Default Config
```go
var ConfigDefault = Config{
Expiration: 24 * time.Hour,
CookieName: "session_id",
KeyGenerator: utils.UUID,
}
```