web_development/backend/app/main.py

import logging
from contextlib import asynccontextmanager

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware

from app.api.platform_routes import router as platform_router
from app.api.research_routes import router as research_router
from app.api.routes import router
from app.api.websocket import ws_router
from app.core.config import settings
from app.core.contracts import CONTRACTS
from app.models.database import init_db
from app.services.market_data import market_data_service

logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(name)s: %(message)s")
logger = logging.getLogger(__name__)


@asynccontextmanager
async def lifespan(app: FastAPI):
    logger.info("Starting %s v%s", settings.APP_NAME, settings.APP_VERSION)
    await init_db()
    await market_data_service.start()
    logger.info("Market data service started for %d contracts", len(CONTRACTS))
    yield
    await market_data_service.stop()
    logger.info("Shutdown complete")


app = FastAPI(
    title=settings.APP_NAME,
    version=settings.APP_VERSION,
    description="Personal Trading System V1 - Futures Trading with Quantitative Strategies",
    lifespan=lifespan,
)

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

app.include_router(router, prefix="/api")
app.include_router(platform_router, prefix="/api")
app.include_router(research_router, prefix="/api")
app.include_router(ws_router)


@app.get("/")
async def root():
    return {
        "name": settings.APP_NAME,
        "version": settings.APP_VERSION,
        "description": "Personal Trading System V1 API",
        "docs": "/docs",
    }