Update index.js

index.js

@@ -34,4 +34,15 @@ app.all('/', (req, res) => {
 const PORT = process.env.PORT || 7860
 app.listen(PORT, () => {
   console.log('App running on port', PORT)
-})
+})
+
+function formatSize(num) {
+	return bytes(+num || 0, { unitSeparator: ' ' })
+}
+function isBase64(str) {
+	try {
+		return btoa(atob(str)) === str
+	} catch {
+		return false
+	}
+}