Update app.py

app.py

@@ -1,11 +1,11 @@
-# app.py
-from fastapi import FastAPI, Request
-from fastapi.responses import JSONResponse
+from fastapi import FastAPI
+from pydantic import BaseModel
 
-app = FastAPI()
+app = FastAPI(title="Echo API", description="API that returns the input text unchanged")
 
-@app.post("/echo")
-async def echo(request: Request):
-    data = await request.json()
-    return {"you_sent": data}
+class TextInput(BaseModel):
+    text: str
 
+@app.post("/echo", response_model=TextInput)
+async def echo_text(input: TextInput):
+    return {"text": input.text}