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a53be7e f42134c a53be7e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | from __future__ import annotations
import os
from typing import Optional
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from rag_core import RAGEngine, InMemorySessionStore
from utils import load_settings
import pandas as pd
class ChatRequest(BaseModel):
message: str
session_id: Optional[str] = None
max_words_memory: int = 5000
class ChatResponse(BaseModel):
answer: str
session_id: str
def _prompt_path() -> str:
here = os.path.dirname(os.path.abspath(__file__))
return os.path.join(here, "prompts", "system.md")
settings = load_settings()
engine = RAGEngine(settings, prompt_path=_prompt_path())
store = InMemorySessionStore()
app = FastAPI(
title="Session 1 RAG API",
description="FastAPI wrapper for the session_1 RAG engine.",
version="0.1.0",
)
@app.get("/health", summary="Health check")
def health():
return {"status": "ok"}
@app.post("/chat", response_model=ChatResponse, summary="Chat with the RAG engine")
def chat(req: ChatRequest):
message = (req.message or "").strip()
if not message:
raise HTTPException(status_code=400, detail="message cannot be empty")
session_id = (req.session_id or "default").strip() or "default"
history = store.get_history(session_id)
answer = engine.ask(message, history=history, max_words_memory=req.max_words_memory)
return ChatResponse(answer=answer, session_id=session_id)
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