{
  "id": "python/fastapi-header-missing",
  "signature": "fastapi.exceptions.RequestValidationError: Header 'Authorization' is required",
  "signature_zh": "FastAPI请求验证错误：缺少必需的头部'Authorization'",
  "regex": "fastapi\\.exceptions\\.RequestValidationError:\\ Header\\ 'Authorization'\\ is\\ required",
  "domain": "python",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "请求中缺少路径操作函数声明的必需HTTP头部",
  "root_cause_type": "generic",
  "root_cause_zh": "请求中缺少路径操作函数声明的必需HTTP头部",
  "versions": [
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "在路由函数中使用默认值",
      "why_fails": "Header验证在函数执行前进行",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    },
    {
      "action": "修改Header为可选但保留逻辑",
      "why_fails": "可选后不会报错但逻辑可能不完整",
      "fail_rate": 0.4,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "在请求中包含必需头部",
      "success_rate": 0.95,
      "how": "Authorization: Bearer token123",
      "condition": "",
      "sources": []
    },
    {
      "action": "在Header参数中设置默认值",
      "success_rate": 0.9,
      "how": "from fastapi import Header\nasync def endpoint(authorization: str = Header(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": 0.83,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-06-15",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}