Скелет готов. Можно писать конвертер.

previewer/application/application.go

@@ -21,11 +21,12 @@ func New(conf config.Config) *App {
 		oslog.Fatal("не удалось прикрутить логгер: ", err.Error())
 	}
 	c := cache.NewCache(conf.Cache.Capasity)
-	return &App{Server: &http.Server{Addr: net.JoinHostPort(conf.Server.Address, conf.Server.Port), Handler: LoggingMiddleware(http.HandlerFunc(Handler), loger)}, Log: loger, Cache: c}
+	return &App{Server: &http.Server{Addr: net.JoinHostPort(conf.Server.Address, conf.Server.Port)}, Log: loger, Cache: c}
 }
 
 func (s *App) Start() error {
 	s.Log.Infof("Server starting")
+	s.Handler = loggingMiddleware(handler(&s.Cache), s.Log)
 	_ = s.ListenAndServe()
 	s.Log.Infof("Server stoped")
 	return nil

previewer/application/functions.go

@@ -12,15 +12,15 @@ import (
 
 func buildQuery(u *url.URL) (q models.Query, err error) {
 	t := strings.Split(u.Path, "/")
-	q.Width,err=strconv.Atoi(t[1])
+	q.Width,err=strconv.Atoi(t[2])
 	if err!=nil {
 		return models.Query{}, errors.New("width must be an integer")
 	}
-	q.Height,err=strconv.Atoi(t[2])
+	q.Height,err=strconv.Atoi(t[3])
 	if err!=nil {
 		return models.Query{}, errors.New("height must be an integer")
 	}
-	tn := "http://"+strings.Join(t[3:],"/")
+	tn := "http://"+strings.Join(t[4:],"/")
 	q.URL,err=q.URL.Parse(tn)
 	if err!=nil {
 		return models.Query{}, errors.New("not valid url")
@@ -29,7 +29,6 @@ func buildQuery(u *url.URL) (q models.Query, err error) {
 }
 
 func getPic(q models.Query) ([]byte,http.Header,error) {
-
 	client := &http.Client{}
 	req, err := http.NewRequest("GET", "https://" + q.URL.Host + "/" + q.URL.Path, nil)
 	if err != nil {

previewer/application/handlers.go

@@ -1,24 +1,29 @@
 package application
 
 import (
+	"github.com/tiburon-777/OTUS_Project/previewer/cache"
 	"github.com/tiburon-777/OTUS_Project/previewer/logger"
 	"net/http"
 	"time"
 )
 
-func Handler(w http.ResponseWriter, r *http.Request) {
+func handler(c *cache.Cache) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		q,err := buildQuery(r.URL)
 		if err!=nil {
-		writeResponce(w, r.Header,501,[]byte("Can't parse query"))
+			http.Error(w, "Can't parse query", http.StatusNotFound)
+			return
 		}
 		pic, h, err := getPic(q)
 		if err!=nil {
-		writeResponce(w, h,501,[]byte("Have problem with cache"))
+			http.Error(w, "Have problem with cache", http.StatusInternalServerError)
+			return
 		}
-	writeResponce(w, r.Header,200,pic)
+		writeResponce(w, h,200,pic)
+	})
 }
 
-func LoggingMiddleware(next http.Handler, l logger.Interface) http.HandlerFunc {
+func loggingMiddleware(next http.Handler, l logger.Interface) http.HandlerFunc {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		start := time.Now()
 		defer func() {

previewer/webserver/webserver.go

@@ -1 +0,0 @@
-package webserver