serve image on get works

handlers.go

@@ -2,8 +2,13 @@ package main
 
 import (
 	"fmt"
+	"image"
+	"image/jpeg"
+	"image/png"
 	"io/ioutil"
 	"net/http"
+	"os"
+	"strings"
 
 	"github.com/gorilla/mux"
 )
@@ -15,7 +20,36 @@ func Index(w http.ResponseWriter, r *http.Request) {
 func ImageShow(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	imageName := vars["imageName"]
-	fmt.Fprintln(w, "Image show:", imageName)
+	//fmt.Fprintln(w, "Image show:", imageName)
+	var imageExtension = strings.Split(imageName, ".")[1]
+
+	file, err := os.Open(imageName)
+	if err != nil {
+		//log.Fatal(err)
+		//fmt.Fprintln(w, "la imatge no existeix al server")
+		fmt.Fprintln(w, err)
+	}
+
+	var img image.Image
+	switch imageExtension {
+	case "png":
+		img, err = png.Decode(file)
+	case "jpg":
+		img, err = jpeg.Decode(file)
+	case "jpeg":
+		img, err = jpeg.Decode(file)
+	default:
+		img = nil
+	}
+
+	if err != nil {
+		//log.Fatal(err)
+		fmt.Fprintln(w, "la imatge no existeix al server")
+	} else {
+		file.Close()
+
+		jpeg.Encode(w, img, nil) // Write to the ResponseWriter
+	}
 }
 
 func NewImage(w http.ResponseWriter, r *http.Request) {
@@ -32,4 +66,5 @@ func NewImage(w http.ResponseWriter, r *http.Request) {
 		fmt.Println(err)
 	}
 
+	fmt.Fprintln(w, "url:", handler.Filename)
 }