How to get fiber.Ctx in add django function ? about template HOT 4 CLOSED

package main

import (
	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/session"
	"github.com/gofiber/template/django"
	"log"
)

func trans(s string) string {
	// TODO: How to get *fiber.Ctx
	//sess, _ := session.New().Get(c)
	//lang := sess.Get("lang")
	return s
}

func main() {
	// Create a new engine
	engine := django.New("./views", ".django")
	engine.AddFunc("t", trans)

	app := fiber.New(fiber.Config{Views: engine})

	
	
	app.Get("/i18n", func(c *fiber.Ctx) error {
		sess, _ := session.New().Get(c)
		sess.Set("lang", "en_US")
		sess.Save()
		
		return c.SendString("i18n")
	})

	log.Fatal(app.Listen(":3000"))
}

package main

import (
	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/middleware/session"
	"github.com/gofiber/template/django"
	"log"
)

func trans(lang, s string) string {
	// locale := someLocales[lang]
        // return locale.get(s)
	return s
}

func main() {
	// Create a new engine
	engine := django.New("./views", ".django")
	engine.AddFunc("t", trans)

	app := fiber.New(fiber.Config{Views: engine})

	app.Get("/", func(c *fiber.Ctx) error {
                sess, _ := session.New().Get(c)
                return c.Render("index", fiber.Map{"lang": sess.Get("lang")})
        })
	
	app.Get("/i18n", func(c *fiber.Ctx) error {
		sess, _ := session.New().Get(c)
		sess.Set("lang", "en_US")
		sess.Save()
		
		return c.Redirect("/")
	})

	log.Fatal(app.Listen(":3000"))
}

package main

import (
    "fmt"
    "log"

    "github.com/gofiber/fiber/v2"
    "github.com/gofiber/fiber/v2/middleware/session"
    "github.com/gofiber/template/django"
)

func trans(s, lang string) string {
    //fmt.Printf("%+v\n%+v\n", s, lang)
    // locale := someLocales[lang]
    // return locale.get(s)
    return s
}

func main() {
    // Create a new engine
    engine := django.New("./views", ".django")
    engine.AddFunc("t", trans)

    // initialize the session manager outside,
    // otherwise it will create a new memory storage every time, when the request is comming
    sessionManager := session.New()

    app := fiber.New(fiber.Config{Views: engine})

    app.Get("/", func(c *fiber.Ctx) error {
        sess, _ := sessionManager.Get(c)
        lang := sess.Get("lang")
        if lang == nil {
            lang = "default"
        }

        fmt.Println(lang)
        return c.Render("index", fiber.Map{"lang": lang})
    })

    app.Get("/i18n", func(c *fiber.Ctx) error {
        sess, _ := sessionManager.Get(c)
        sess.Set("lang", "en_US")
        sess.Save()

        return c.Redirect("/")
    })

    log.Fatal(app.Listen(":3000"))
}