add extension name to image file

README.md

@@ -1,10 +1,8 @@
 # Image Server
 
 Remaining:
-- parameterize bucket for test server
 - try American Cloud
 - dockerize
-- add file extension
 - images.timesafari.app
 
 - pretty-up the client, show thumbnail

server.js

@@ -147,7 +147,7 @@ app.post('/image', uploadMulter.single('image'), async (req, res) => {
       hashSum.update(data);
       const hashHex = hashSum.digest('hex');
 
-      const fileName = hashHex;
+      const fileName = hashHex + path.extname(reqFile.originalname);
 
       try {