Transcode File Uploading

task/hash.go

@@ -0,0 +1,21 @@
+package task
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io"
+	"os"
+)
+
+func hashFile(path string) ([]byte, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, fmt.Errorf("Opening File: %w", err)
+	}
+
+	hash := md5.New()
+	if _, err := io.Copy(hash, file); err != nil {
+		return nil, fmt.Errorf("Reading File: %w", err)
+	}
+	return hash.Sum(nil), nil
+}