{
  "id": "python/starlette-middleware-order",
  "signature": "AssertionError: Middleware must be added before routes",
  "signature_zh": "断言错误：中间件必须在路由之前添加",
  "regex": "AssertionError:\\ Middleware\\ must\\ be\\ added\\ before\\ routes",
  "domain": "python",
  "category": "config_error",
  "subcategory": null,
  "root_cause": "在 Starlette 中，尝试在路由已定义后添加中间件，导致断言失败。",
  "root_cause_type": "generic",
  "root_cause_zh": "在 Starlette 中，尝试在路由已定义后添加中间件，导致断言失败。",
  "versions": [
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "虽然能解决，但代码冗余且不优雅。",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "中间件功能（如认证）将失效。",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.9,
      "how": "app = Starlette(routes=routes, middleware=[Middleware(AuthenticationMiddleware)])",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "app = Starlette()\napp.add_middleware(AuthenticationMiddleware)\napp.router.routes = routes",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.84,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-04-18",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}