post接口支持上下文

main.py

@@ -131,14 +131,17 @@ async def websocket_endpoint(websocket: WebSocket):
 
 class Item(BaseModel):
     _msgid: Union[str, None] = None
-    input: str
+    input: str = ""
     history: List[Dict] = []
 
 
 @app.post("/api/chat")
 def chat(item: Item):
     print(item)
-    history = [construct_user(item.input)]
+    history = [*item.history]
+
+    if item.input:
+        history.append({"role": "user", "content": f"{item.input}"})
     res = get_response(initial_prompt, history)
     return res
 
@@ -149,11 +152,14 @@ initial_prompt = "You are a helpful assistant."
 
 def get_response(system_prompt, history):
 
-    history = [construct_system(system_prompt), *history]
+    messages = [
+        {"role": "system", "content": f"{system_prompt}"},
+        *history
+    ]
 
     payload = {
         "model": "gpt-3.5-turbo",
-        "messages": history,  # [{"role": "user", "content": f"{inputs}"}],
+        "messages": messages,
     }
 
     print(f"payload: -->{payload}")