Structuring a gin webapplication: an idea

app.go

package main

import (
	"fmt"
	"github.com/go-gonic/gin"
)

var Routes struct {
	Homepage     func() string
	CreateWidget func() string
	UpdateWidget func(string) string
}

func init() {
	Routes.Homepage = func() string {
		return "/"
	}
	Routes.CreateWidget = func() string {
		return "/api/widgets"
	}
	Routes.UpdateWidget = func(widgetId string) {
		return fmt.Sprintf("/api/widgets/%s", widgetId)
	}
}

func main() {
	endpoints = &ApplicationDependencies{}

	router := gin.Default()
	router.GET(Routes.Homepage(), endpoints.Homepage)
	router.POST(Routes.CeateWidget(), endpoints.CreateWidget)
	router.PUT(Routes.UpdateWidget(":id"), endpoints.UpdateWidget)
	router.Run()
}

type ApplicationDependencies struct {
	// New Relic
	// Datadog
}

func (deps *ApplicationDependencies) Homepage(c *gin.Context) {
	c.HTML(http.StatusOK, "index.tmpl", gin.H{
		"createEndpointPath": Routes.CreateWidget(),
		// If the clientside needs the URL template in a particular structure that can be achieved here
		"updateEndpointpath": Routes.UpdateWidget("%%id%%"),
	})
}