python
data_error
ai_generated
true
FastAPI 请求验证错误:路径参数 'item_id' 不是有效的整数
fastapi.exceptions.RequestValidationError: [{'loc': ['path', 'item_id'], 'msg': 'value is not a valid integer', 'type': 'type_error.integer'}]
ID: python/fastapi-path-param-type-error
80%修复率
87%置信度
0证据数
2025-04-18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
路径参数标注为 int,但 URL 中提供了非整数值。
English
A path parameter annotated as int receives a non-integer value from the URL.
解决方案
-
90% 成功率
Ensure the client sends an integer in the URL, e.g., /items/123
-
100% 成功率
Use a Pydantic model or path converter: @app.get('/items/{item_id}') with item_id: int
无效尝试
常见但无效的做法:
-
60% 失败
This doesn't fix the client's request; they still need to send a valid integer.
-
50% 失败
Loses automatic validation; you have to handle conversion errors yourself.