app.py

from fastapi import FastAPI
from langgraph.agents.summarize_agent.graph import graph   
from fastapi import Request



app = FastAPI()

@app.get("/")
def greet_json():
    return {"Hello": "World!"}



@app.post("/summarize")
async def summarize(request: Request):
    data = await request.json()
    user_input = data.get("user_input")
    return  graph.invoke({"user_input": user_input})