Update main.py

main.py

@@ -33,18 +33,12 @@ def root():
      return {"title": "Echo Bot"}
 
 @app.post("/webhook")
-async def webhook(request: Request):
-    signature = request.headers["X-Line-Signature"]
-
-    body = request.get_data(as_text=True)
-    app.logger.info("Request body: " + body)
+async def webhook(request: Request, x_line_signature: str = Header(None)):
+    body = await request.body()
     try:
-        print(body, signature)
-        line_handler.handle(body, signature)
-        
+        handler.handle(body.decode("utf-8"), x_line_signature)
     except InvalidSignatureError:
-        abort(400)
-
+        raise HTTPException(status_code=400, detail="chatbot handle body error.")
     return 'OK'
 
 @line_handler.add(MessageEvent, message=TextMessage)