konjacpotato
c097d0b549
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98 lines
2.8 KiB
Python
98 lines
2.8 KiB
Python
from datetime import datetime
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from fastapi import FastAPI
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from fastapi.concurrency import asynccontextmanager
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from config.settings import settings
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from scheduler import job_story_portal
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from utils.logger import logger
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from scheduler.scheduler import scheduler
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import scheduler.jobs as jobs
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from config.app import create_app
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"""
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启动方式：
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python -m uvicorn main:app --reload
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说明：
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- 使用 FastAPI lifespan 管理 APScheduler 生命周期（替代已废弃的 on_event）
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- 避免 Uvicorn reload 模式下调度器重复启动
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- 所有 Job 在应用启动时统一注册
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"""
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def _add_jobs():
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"""
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注册所有定时任务。
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注意：
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- 增加重复检查，避免 reload 或多进程导致重复添加。
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- replace_existing=True 保证任务更新时无需手动删除。
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"""
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if not scheduler.get_job("heartbeat-job"):
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scheduler.add_job(
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jobs.job_heartbeat,
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trigger="interval",
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seconds=10,
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id="heartbeat-job",
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replace_existing=True,
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)
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logger.info("Job 'heartbeat-job' registered.")
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else:
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logger.info("Job 'heartbeat-job' already exists. Skipped.")
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# 需要立即执行一次每日文章生成任务
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scheduler.add_job(
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job_story_portal.job_generate_daily_article,
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trigger="interval",
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seconds=86400, # 每天运行一次
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id="generate-daily-article-job",
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replace_existing=True,
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next_run_time=datetime.now(datetime.timezone.utc), # 启动即执行一次
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misfire_grace_time=60, # 允许错过一分钟内的执行
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)
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logger.info("Job 'generate-daily-article-job' registered.")
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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"""
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FastAPI 应用生命周期管理。
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startup:
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- 注册定时任务
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- 启动 APScheduler（避免 reload 环境下重复启动）
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shutdown:
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- 安全关闭 APScheduler
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yield:
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- 让 FastAPI 在此期间正常运行
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"""
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logger.info("==== Lifespan: startup ====")
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# 防止 Uvicorn reload 启动两个进程导致重复启动 scheduler
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if scheduler.running:
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logger.warning("Scheduler already running. Skip start.")
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else:
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try:
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scheduler.start()
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logger.info("APScheduler started.")
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except Exception:
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logger.exception("Failed to start APScheduler:")
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raise
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_add_jobs()
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yield # ---- 应用运行中 ----
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logger.info("==== Lifespan: shutdown ====")
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# 仅在 scheduler 正常运行时关闭
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if scheduler.running:
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scheduler.shutdown(wait=False)
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logger.info("APScheduler stopped.")
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else:
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logger.info("Scheduler was not running. Skip shutdown.")
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# 创建 FastAPI 应用（注入 lifespan 管理逻辑）
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app = create_app(lifespan=lifespan) |