Update main.py

main.py

@@ -3,9 +3,18 @@ from fastapi.staticfiles import StaticFiles
 from fastapi.responses import FileResponse
 from transformers import pipeline
 import torch
+from fastapi.middleware.cors import CORSMiddleware
 
 app = FastAPI()
 
+# Enable CORS so your frontend can communicate with the backend smoothly
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
 
 app.mount("/", StaticFiles(directory="static", html=True), name="static")
 
@@ -16,6 +25,9 @@ def index() -> FileResponse:
 pipe_flan = pipeline("text2text-generation", model="google/flan-t5-small")
 
 @app.get("/infer_t5")
-def t5(input):
+def infer_t5(input: str):
+    if not input:
+        return {"output": "Please enter some text."}
+    
     output = pipe_flan(input)
     return {"output": output[0]["generated_text"]}