write the app.py and upload data

app.py

@@ -1,14 +1,14 @@
 import openai
 import tiktoken
 
-openai.api_key = os.getenv('API_KEY')
-
 import collections
 import datetime
 import time
 import json
 import os
 
+openai.api_key = os.getenv('API_KEY')
+
 timezone = datetime.tz.gettz('Asia/Shanghai')
 timestamp2string = lambda timestamp: datetime.datetime.fromtimestamp(timestamp).replace(tzinfo=timezone).strftime('%Y-%m-%d %H:%M:%S')