main.py

from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
import requests

app = FastAPI()
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_methods=["*"],
    allow_headers=["*"],
)

OLLAMA_URL = "http://127.0.0.1:11434/api/generate"

@app.post("/chat")
async def chat(req: Request):
    data = await req.json()
    prompt = data.get("message", "")

    r = requests.post(OLLAMA_URL, json={
        "model": "mistral",
        "prompt": prompt,
        "stream": False
    }, timeout=120)

    j = r.json()
    return {"reply": j.get("response", "")}