{
  "id": "python/fastapi-cookie-parse-error",
  "signature": "ValueError: Invalid cookie value",
  "signature_zh": "值错误：无效的Cookie值。",
  "regex": "ValueError:\\ Invalid\\ cookie\\ value",
  "domain": "python",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "请求中的Cookie格式不正确，无法被解析。",
  "root_cause_type": "generic",
  "root_cause_zh": "请求中的Cookie格式不正确，无法被解析。",
  "versions": [
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "尝试手动解析Cookie但忽略异常。",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "使用错误的Cookie名称。",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.95,
      "how": "使用FastAPI的Cookie参数：\n@app.get(\"/items\")\nasync def read_items(session: str = Cookie(None)):\n    return {\"session\": session}",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.9,
      "how": "捕获异常：\ntry:\n    cookie = request.cookies[\"session\"]\nexcept KeyError:\n    cookie = None",
      "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": 0.82,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2026-04-15",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}