HTTP 201 Created vs 303 See Other
HTTP 201 (Created) is a 2xx Success response, while 303 (See Other) is a 3xx Redirection response. 201 indicates that the request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity. In contrast, 303 means that the server is redirecting to a different resource using GET, typically after a POST operation (Post/Redirect/Get pattern).
설명
The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
이 코드를 보게 되는 경우
After successfully creating a new user, post, order, or other resource via a REST API.
해결 방법
No fix needed. Check the Location header for the URL of the new resource.
설명
The server is redirecting to a different resource using GET, typically after a POST operation (Post/Redirect/Get pattern).
이 코드를 보게 되는 경우
After form submissions to prevent resubmission on browser refresh.
해결 방법
Follow the Location header with a GET request. This is intentional — part of the PRG pattern.
주요 차이점
201 is a 2xx Success response, while 303 is a 3xx Redirection response.
HTTP 201: The request succeeded and a new resource was created. Typically returned after POST or PUT requests that create a new entity.
HTTP 303: The server is redirecting to a different resource using GET, typically after a POST operation (Post/Redirect/Get pattern).
You encounter 201 when after successfully creating a new user, post, order, or other resource via a REST API.
You encounter 303 when after form submissions to prevent resubmission on browser refresh.
언제 어떤 것을 사용할지
For 201 (Created): No fix needed. Check the Location header for the URL of the new resource. For 303 (See Other): Follow the Location header with a GET request. This is intentional — part of the PRG pattern.