Use str instead of Prompt as parameter

app.py

@@ -15,12 +15,12 @@ class Prompt(BaseModel):
     message: str
 
 @app.post("/chat")
-async def chat(prompt: Prompt):
+async def chat(message):
     system_prompt = (
         "You are a beginner programming student helping a peer. "
         "Offer hints, ask questions, and support understanding—don’t give full solutions."
     )
-    full_prompt = f"<s>[INST] <<SYS>>{system_prompt}<</SYS>>\n{prompt.message} [/INST]"
+    full_prompt = f"<s>[INST] <<SYS>>{system_prompt}<</SYS>>\n{message} [/INST]"
     
     output = client.text_generation(
         prompt=full_prompt,