python data_error ai_generated true

Werkzeug 异常:400 错误请求:无法解码 JSON 对象:期望值:第 1 行第 1 列(字符 0)

werkzeug.exceptions.BadRequest: 400 Bad Request: Failed to decode JSON object: Expecting value: line 1 column 1 (char 0)

ID: python/flask-json-request-invalid

其他格式: JSON · Markdown 中文 · English
80%修复率
89%置信度
0证据数
2025-06-30首次发现

版本兼容性

版本状态引入弃用备注
3.x active

根因分析

当 Flask 尝试通过 request.get_json() 解析时,请求体不是有效的 JSON。

English

The request body is not valid JSON when Flask tries to parse it via request.get_json().

generic

解决方案

  1. 95% 成功率
    Validate first: if request.is_json: data = request.get_json() else: return {'error': 'Invalid JSON'}, 400
  2. 90% 成功率
    Use request.get_json(silent=True) which returns None on error and handle it

无效尝试

常见但无效的做法:

  1. 70% 失败

    Still raises JSONDecodeError if the body is invalid.

  2. 40% 失败

    This doesn't help the client fix their request; they need to send valid JSON.