더 깔끔하고 구조화된 코드베이스를 만들기 위해 Gin에서 경로를 그룹화하려면 어떻게 해야 합니까?

<code class="go">package app

import "github.com/gin-gonic/gin"

type routes struct {
    router *gin.Engine
}

func NewRoutes() routes {
    r := routes{
        router: gin.Default(),
    }

    // Add routes here...

    return r
}</code>

<code class="go">package app

func (r routes) addPing(rg *gin.RouterGroup) {
    ping := rg.Group("/ping")

    ping.GET("/", pongFunction)
}

func pongFunction(c *gin.Context) {
    // Handle ping GET request...
}</code>

<code class="go">package main

import "app"

func main() {
    r := app.NewRoutes()
    r.Run()
}</code>