HTTP 205 Reset Content vs 422 Unprocessable Content
HTTP 205 (Reset Content) is a 2xx Success response, while 422 (Unprocessable Content) is a 4xx Client Error response. 205 indicates that the server fulfilled the request and the client should reset the document view (e.g., clear a form). In contrast, 422 means that the server understands the content type and syntax, but was unable to process the contained instructions. Common in API validation errors.
説明
The server fulfilled the request and the client should reset the document view (e.g., clear a form).
このコードが表示される場合
After form submissions where the server wants the client to reset the form for new input.
解決方法
The client should clear the form or reset the view. Rarely used in practice.
説明
The server understands the content type and syntax, but was unable to process the contained instructions. Common in API validation errors.
このコードが表示される場合
When form validation fails — correct syntax but invalid data (e.g., email format wrong, date in the past).
解決方法
Check the response body for specific validation errors and correct the input data.
主な違い
205 is a 2xx Success response, while 422 is a 4xx Client Error response.
HTTP 205: The server fulfilled the request and the client should reset the document view (e.g., clear a form).
HTTP 422: The server understands the content type and syntax, but was unable to process the contained instructions. Common in API validation errors.
You encounter 205 when after form submissions where the server wants the client to reset the form for new input.
You encounter 422 when when form validation fails — correct syntax but invalid data (e.g., email format wrong, date in the past).
どちらをいつ使うか
For 205 (Reset Content): The client should clear the form or reset the view. Rarely used in practice. For 422 (Unprocessable Content): Check the response body for specific validation errors and correct the input data.