{
  "id": "python/flask-json-request-error",
  "signature": "BadRequest: 400 Bad Request: Failed to decode JSON object: Expecting value: line 1 column 1 (char 0)",
  "signature_zh": "BadRequest: 400 错误请求: 无法解码 JSON 对象: 期望值: 第 1 行第 1 列 (字符 0)",
  "regex": "BadRequest:\\ 400\\ Bad\\ Request:\\ Failed\\ to\\ decode\\ JSON\\ object:\\ Expecting\\ value:\\ line\\ 1\\ column\\ 1\\ \\(char\\ 0\\)",
  "domain": "python",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "Flask 尝试解析请求体为 JSON，但内容为空或格式错误。",
  "root_cause_type": "generic",
  "root_cause_zh": "Flask 尝试解析请求体为 JSON，但内容为空或格式错误。",
  "versions": [
    {
      "version": "3.x",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "忽略错误，不检查请求体。",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "尝试手动解析但未处理空值。",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "修改前端但忘记设置 Content-Type。",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "",
      "success_rate": 0.9,
      "how": "使用 request.get_json(silent=True) 并检查是否为 None。",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.95,
      "how": "捕获 BadRequest 异常并返回友好错误。",
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "success_rate": 0.85,
      "how": "确保客户端发送正确的 JSON 格式。",
      "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": 0.85,
  "fix_success_rate": 0.8,
  "resolvable": "true",
  "first_seen": "2024-01-28",
  "last_confirmed": "2025-01-01",
  "last_updated": "2025-01-01",
  "evidence_count": 0,
  "tags": [],
  "locale": "en",
  "aliases": []
}