Go fiber pass objects between handlers

main.go

package main

import (
	"github.com/gofiber/fiber/v2"
)

func main() {
	app := fiber.New()

	app.Use("/my-middleware", func(c *fiber.Ctx) error {
		c.Context().SetUserValue("my-key", struct {
			name, address, email string
		}{
			"john doe",
			"star valley 1200",
			"john.doe@star-valley.net",
		})
		return c.Next()
	})

	app.Get("/my-middleware/my-handler", func(c *fiber.Ctx) error {
		myKey := c.Context().UserValue("my-key").(struct {
			name, address, email string
		})
		return c.JSON(fiber.Map{
			"name":    myKey.name,
			"address": myKey.address,
			"email":   myKey.email,
		})
	})

	panic(app.Listen(":8080"))
}