diff --git a/app.py b/app.py
index 9a92156..7333d3b 100644
--- a/app.py
+++ b/app.py
@@ -8,11 +8,16 @@ import pickle
 import os
 from fastapi.responses import JSONResponse
 import asyncio
+from pydantic import BaseModel
 
 
 app = FastAPI()
 
 
+class Item(BaseModel):
+    query: Union[str, None] = None
+
+
 # 判断uid是否存在
 def findUid(uiddata, phoneNum):
     isFind = False
@@ -211,10 +216,8 @@ async def getphonenum(
 @app.post("/callback")
 # def read_root():
 # return {"Hello": "World"}
-def callback(
-    query: Union[str, None] = None,
-):
-    print("query", query)
+def callback(item: Item):
+    print("item", item)
     content = {
         "ans_node_name": "小微闲聊",
         "title": "小薇兄你好",