Update app.py

app.py

@@ -61,7 +61,7 @@ def save_data(t,m,l,n,w,p):
     buffer = io.BytesIO()
     #json.dump(data, buffer)
 
-    buffer.write(data.encode('utf-8'))
+    buffer.write(json.dumps(data,indent=4).encode('utf-8'))
     buffer.seek(0)
     #buffer_contents = buffer.read()
     api.upload_file(