mirror of
https://github.com/Sosokker/plain-rag.git
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47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
from contextlib import asynccontextmanager
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from dotenv import load_dotenv
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from fastapi import FastAPI
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from structlog import get_logger
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from app.api import endpoints
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from app.services.config_service import ConfigService
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from app.services.rag_service import RAGService
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from app.services.vector_stores import PGVectorStore
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logger = get_logger()
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# Load environment variables from .env file
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load_dotenv()
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# Dictionary to hold our application state, including the RAG service instance
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app_state = {}
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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config_service = ConfigService()
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await config_service.initialize_models()
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app_state["config_service"] = config_service
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# This code runs on startup
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logger.info("Application starting up...")
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# Initialize the RAG Service and store it in the app_state
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app_state["rag_service"] = RAGService(
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embedding_model=config_service.get_current_embedding_model(),
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vector_db=PGVectorStore(),
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reranker=config_service.get_current_reranker_model(),
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)
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yield
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app = FastAPI(lifespan=lifespan)
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# Include the API router
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app.include_router(endpoints.router)
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@app.get("/")
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def read_root():
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return {"message": "Welcome to the Custom RAG API"}
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