Update main.py

main.py

@@ -55,7 +55,8 @@ async def chat(chat_request: ChatRequest):
         loader = WebBaseLoader(target_url)
         print(target_url)
         docs = loader.load()
-        result = chain.run(docs)
+        #result = chain.run(docs)
+        result="Hi FastAPI"
         print("AI Summarization: " + result)
         return {'response': result}  #FastAPI方式下，这个返回形式，有问题？
         #return JSONResponse({'response': result})