fix api for truncate

main.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"local/args"
+	"local/gziphttp"
 	"local/logb"
 	"local/storage"
 	"net/http"
@@ -41,13 +42,20 @@ func main() {
 }
 
 func (server server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if gziphttp.Can(r) {
+		w2 := gziphttp.New(w)
+		defer w2.Close()
+		w = w2
+	}
 	fileServer := http.FileServer(http.Dir("./"))
 	switch r.URL.Path {
 	case "/api":
+		logb.Debug("serving api", r.URL.Path, r.URL.Query())
 		if err := server.apiHandler(w, r); err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 		}
 	default:
+		logb.Debug("serving dir", r.URL.Path)
 		fileServer.ServeHTTP(w, r)
 	}
 }
@@ -67,7 +75,7 @@ func (server server) apiHandler(w http.ResponseWriter, r *http.Request) error {
 		default:
 			v, err := server.db.GetStream(key)
 			if err == storage.ErrNotFound {
-				return nil
+				return json.NewEncoder(w).Encode(nil)
 			}
 			if err != nil {
 				return err
@@ -76,9 +84,15 @@ func (server server) apiHandler(w http.ResponseWriter, r *http.Request) error {
 			return err
 		}
 	case http.MethodPost:
-		return server.db.SetStream(key, r.Body)
+		if err := server.db.SetStream(key, r.Body); err != nil {
+			return err
+		}
+		return json.NewEncoder(w).Encode(nil)
 	case http.MethodDelete:
-		return server.db.SetStream(key, nil)
+		if err := server.db.SetStream(key, nil); err != nil {
+			return err
+		}
+		return json.NewEncoder(w).Encode(nil)
 	default:
 		http.NotFound(w, r)
 	}