HTTP 200 OK vs 422 Unprocessable Content
HTTP 200 (OK) is a 2xx Success response, while 422 (Unprocessable Content) is a 4xx Client Error response. 200 indicates that the request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only. 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.
Description
The request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only.
Quand vous le voyez
The most common HTTP response — indicates the request was processed successfully.
Comment résoudre
No fix needed. The request succeeded as expected.
Description
The server understands the content type and syntax, but was unable to process the contained instructions. Common in API validation errors.
Quand vous le voyez
When form validation fails — correct syntax but invalid data (e.g., email format wrong, date in the past).
Comment résoudre
Check the response body for specific validation errors and correct the input data.
Différences clés
200 is a 2xx Success response, while 422 is a 4xx Client Error response.
HTTP 200: The request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only.
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 200 when the most common HTTP response — indicates the request was processed successfully.
You encounter 422 when when form validation fails — correct syntax but invalid data (e.g., email format wrong, date in the past).
Quand utiliser lequel
For 200 (OK): No fix needed. The request succeeded as expected. For 422 (Unprocessable Content): Check the response body for specific validation errors and correct the input data.