Update app.py

app.py

@@ -45,7 +45,7 @@ def respond(message, history):
     
     try:
         response = requests.post(
-            local_endpoint, data=data_json, headers=headers)
+            local_endpoint, json=data_json, headers=headers)
         response_data = response.json()
         #print(response_data)
         #response_data=response_data["predictions"][0]