Create app.py (#2)

- Create app.py (f2edd8eb11fb572a4c613541e3384a22f4df0ee7)

app.py

@@ -0,0 +1,29 @@
+from fastapi import FastAPI, HTTPException
+from pydantic import BaseModel
+import os
+import requests
+
+app = FastAPI()
+
+HF_ROUTER = os.environ.get("HF_ROUTER_URL")
+HF_KEY = os.environ.get("HF_TOKEN_MARCUS")
+
+class Msg(BaseModel):
+    message: str
+
+@app.post("/chat")
+def chat(msg: Msg):
+    if HF_ROUTER and HF_KEY:
+        payload = {"inputs": msg.message, "parameters":{"max_new_tokens":300,"temperature":0.7}}
+        headers = {"Authorization": f"Bearer {HF_KEY}", "Content-Type": "application/json"}
+        r = requests.post(HF_ROUTER, json=payload, headers=headers, timeout=60)
+        if r.status_code != 200:
+            raise HTTPException(status_code=502, detail=f"HF call failed: {r.status_code} {r.text[:300]}")
+        data = r.json()
+        reply = data[0]["generated_text"] if isinstance(data,list) else data.get("generated_text", str(data))
+        return {"reply": reply}
+    return {"reply": "Space ready as proxy. No hosted model configured."}
+
+@app.get("/")
+def root():
+    return {"status": "ok"}