python data_error ai_generated true

werkzeug.exceptions.BadRequest: 400 错误请求：无法解码 JSON 对象：Expecting value: line 1 column 1 (char 0)

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

ID: python/flask-json-decode-error

其他格式: JSON · Markdown 中文 · English
80%修复率
87%置信度
0证据数
2024-05-19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

对空请求体或非 JSON 请求（如表单编码或缺少 Content-Type）调用了 request.get_json()。

English

request.get_json() was called on a request whose body is empty or not JSON (e.g., form-encoded or missing Content-Type).

generic

解决方案

  1. 90% 成功率 
    data = request.get_json(silent=True) or {}
  2. 92% 成功率 
    Check request.is_json before parsing: if request.is_json: data = request.get_json()

无效尝试

常见但无效的做法:

  1. 60% 失败

    Still fails if body is empty or malformed.

  2. 70% 失败

    Downstream code then receives None and crashes.