HTTP 206 Partial Content vs 422 Unprocessable Content
HTTP 206 (Partial Content) is a 2xx Success response, while 422 (Unprocessable Content) is a 4xx Client Error response. 206 indicates that the server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming. 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 server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
Quand vous le voyez
During video streaming, large file downloads, or when resuming interrupted downloads.
Comment résoudre
No fix needed. This is normal behavior for range requests.
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
206 is a 2xx Success response, while 422 is a 4xx Client Error response.
HTTP 206: The server is delivering only part of the resource due to a Range header sent by the client. Used for resumable downloads and video streaming.
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 206 when during video streaming, large file downloads, or when resuming interrupted downloads.
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 206 (Partial Content): No fix needed. This is normal behavior for range requests. For 422 (Unprocessable Content): Check the response body for specific validation errors and correct the input data.