124 lines
3.7 KiB
Python
124 lines
3.7 KiB
Python
# ================================================================
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# services/auth/app/main.py (ENHANCED VERSION)
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# ================================================================
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"""
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Authentication Service Main Application
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Enhanced version with proper lifecycle management and microservices integration
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"""
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import logging
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from fastapi import FastAPI, Request
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import JSONResponse
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from contextlib import asynccontextmanager
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from app.core.config import settings
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from app.core.database import engine, create_tables
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from app.api import auth, users
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from app.services.messaging import setup_messaging, cleanup_messaging
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from shared.monitoring.logging import setup_logging
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from shared.monitoring.metrics import MetricsCollector
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# Setup logging
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setup_logging("auth-service", settings.LOG_LEVEL)
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logger = logging.getLogger(__name__)
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# Initialize metrics
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metrics = MetricsCollector("auth_service")
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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"""Application lifespan events"""
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# Startup
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logger.info("Starting Authentication Service...")
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# Create database tables
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await create_tables()
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logger.info("Database tables created")
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# Setup messaging
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await setup_messaging()
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logger.info("Messaging setup complete")
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# Register metrics
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metrics.register_counter("auth_requests_total", "Total authentication requests")
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metrics.register_counter("auth_login_success_total", "Successful logins")
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metrics.register_counter("auth_login_failure_total", "Failed logins")
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metrics.register_counter("auth_registration_total", "User registrations")
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metrics.register_histogram("auth_request_duration_seconds", "Request duration")
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logger.info("Authentication Service started successfully")
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yield
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# Shutdown
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logger.info("Shutting down Authentication Service...")
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await cleanup_messaging()
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await engine.dispose()
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logger.info("Authentication Service shutdown complete")
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# Create FastAPI app
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app = FastAPI(
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title="Authentication Service",
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description="Handles user authentication and authorization for bakery forecasting platform",
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version="1.0.0",
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docs_url="/docs",
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redoc_url="/redoc",
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lifespan=lifespan
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)
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# CORS middleware
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"], # Configure properly for production
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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# Include routers
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app.include_router(auth.router, prefix="/api/v1/auth", tags=["authentication"])
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app.include_router(users.router, prefix="/api/v1/users", tags=["users"])
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# Health check endpoint
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@app.get("/health")
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async def health_check():
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"""Health check endpoint"""
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return {
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"service": "auth-service",
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"status": "healthy",
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"version": "1.0.0"
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}
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# Metrics endpoint
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@app.get("/metrics")
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async def get_metrics():
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"""Prometheus metrics endpoint"""
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return metrics.get_metrics()
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# Exception handlers
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@app.exception_handler(Exception)
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async def global_exception_handler(request: Request, exc: Exception):
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"""Global exception handler"""
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logger.error(f"Unhandled exception: {exc}", exc_info=True)
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return JSONResponse(
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status_code=500,
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content={"detail": "Internal server error"}
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)
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# Request middleware for metrics
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@app.middleware("http")
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async def metrics_middleware(request: Request, call_next):
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"""Middleware to collect metrics"""
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import time
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start_time = time.time()
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response = await call_next(request)
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# Record metrics
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duration = time.time() - start_time
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metrics.record_histogram("auth_request_duration_seconds", duration)
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metrics.increment_counter("auth_requests_total")
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return response
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