app.py

from fastapi import FastAPI, Request
import requests
import os

app = FastAPI()

# OpenRouter API key
OPENROUTER_API_KEY = os.getenv("OPENROUTER_API_KEY")

# Root route
@app.get("/")
def home():
    return {"message": "Molbot is running 🚀"}

# Chat route
@app.post("/chat")
async def chat(request: Request):
    data = await request.json()
    user_message = data.get("message")

    if not user_message:
        return {"error": "No message provided"}

    url = "https://openrouter.ai/api/v1/chat/completions"
    headers = {
        "Authorization": f"Bearer {OPENROUTER_API_KEY}",
        "Content-Type": "application/json"
    }
    payload = {
        "model": "deepseek/deepseek-chat",
        "messages": [
            {"role": "user", "content": user_message}
        ]
    }

    response = requests.post(url, headers=headers, json=payload)
    return response.json()