Merge pull request #27 from stuartnelson3/master

chore(go): update Go example

Author: AidasK

samples/Backend on Go.md

@@ -80,12 +80,9 @@ func chunkedReader(w http.ResponseWriter, r *http.Request) error {
 	r.ParseMultipartForm(25)
 
 	chunkDirPath := "./incomplete/" + r.FormValue("flowFilename")
-	_, err := os.Stat(chunkDirPath)
+	err := os.MkdirAll(chunkDirPath, 02750)
 	if err != nil {
-		err := os.MkdirAll(chunkDirPath, 02750)
-		if err != nil {
-			return err
-		}
+		return err
 	}
 
 	for _, fileHeader := range r.MultipartForm.File["file"] {
@@ -102,7 +99,16 @@ func chunkedReader(w http.ResponseWriter, r *http.Request) error {
 		defer dst.Close()
 		io.Copy(dst, src)
 
-		if r.FormValue("flowChunkNumber") == r.FormValue("flowTotalChunks") {
+		fileInfos, err := ioutil.ReadDir(chunkDirPath)
+		if err != nil {
+			return err
+		}
+
+		cT, err := strconv.Atoi(chunkTotal)
+		if err != nil {
+			return err
+		}
+		if len(fileInfos) == cT {
 			completedFiles <- chunkDirPath
 		}
 	}