added in config loading from file then ENV

main.go

@@ -2,12 +2,22 @@ package main
 
 import (
 	"fmt"
-	"os"
+	"log"
 
 	"github.com/gofiber/fiber/v2"
 )
 
+type Server struct {
+	Config *Config
+}
+
 func main() {
+	server := Server{}
+	err := LoadConfig(&server)
+	if err != nil {
+		log.Fatal("Unable to load in config file: ", err)
+	}
+	fmt.Println("Server: ", server.Config)
 	app := fiber.New()
 
 	app.Get("/", func(c *fiber.Ctx) error {
@@ -15,5 +25,5 @@ func main() {
 	})
 	// fmt.Println("Port listen on: ", os.Getenv("PORT"))
 	// fmt.Println("Timezone is: ", os.Getenv("TZ"))
-	app.Listen(fmt.Sprintf(":%s", os.Getenv("PORT")))
+	app.Listen(fmt.Sprintf(":%s", server.Config.Server.Port))
 }