embedding index html

internal/rendering/template.go

@@ -1,19 +0,0 @@
-package rendering
-
-import (
-	"html/template"
-	"log"
-	"os"
-)
-
-func getFileContent() string {
-	content, err := os.ReadFile("frontend/index.html")
-
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	return string(content)
-}
-
-var IndexTemplate = template.Must(template.New("index").Parse(getFileContent()))

main.go

@@ -2,7 +2,11 @@ package main
 
 import (
 	"bytes"
+	"embed"
 	"fmt"
+	"html/template"
+	"io/fs"
+	"log"
 	"net/http"
 	"os"
 	"strconv"
@@ -12,10 +16,8 @@ import (
 	"github.com/labstack/echo/v4"
 )
 
-
 var CurrentConfig = rendering.NewConfig()
 
-
 func FetchDiyHrt() error {
 	fmt.Println("Fetch DiyHrt Marketplaces...")
 
@@ -27,13 +29,37 @@ func FetchDiyHrt() error {
 	return nil
 }
 
+//go:embed frontend/*
+var frontendFiles embed.FS
+
+func getFileContent() string {
+	content, err := frontendFiles.ReadFile("frontend/index.html")
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return string(content)
+}
+
+var IndexTemplate = template.Must(template.New("index").Parse(getFileContent()))
+
 func getIndex(c echo.Context) error {
 	var tpl bytes.Buffer
-	rendering.IndexTemplate.Execute(&tpl, CurrentConfig.Template)
+	IndexTemplate.Execute(&tpl, CurrentConfig.Template)
 
 	return c.HTML(http.StatusOK, tpl.String())
 }
 
+func getFileSystem() http.FileSystem {
+	fsys, err := fs.Sub(frontendFiles, "frontend")
+	if err != nil {
+		panic(err)
+	}
+
+	return http.FS(fsys)
+}
+
 func main() {
 	fmt.Println("running transfem startpage")
 
@@ -54,8 +80,11 @@ func main() {
 	}
 
 	e := echo.New()
-	e.Static("/assets", "frontend/assets")
-	e.Static("/scripts", "frontend/scripts")
+
+	// https://echo.labstack.com/docs/cookbook/embed-resources
+	staticHandler := http.FileServer(getFileSystem())
+	e.GET("/assets/*", echo.WrapHandler(http.StripPrefix("/", staticHandler)))
+	e.GET("/scripts/*", echo.WrapHandler(http.StripPrefix("/", staticHandler)))
 	e.GET("/", getIndex)
 
 	e.Logger.Fatal(e.Start(":" + strconv.Itoa(CurrentConfig.Server.Port)))