HTTP 202 Accepted vs 511 Network Authentication Required
HTTP 202 (Accepted) is a 2xx Success response, while 511 (Network Authentication Required) is a 5xx Server Error response. 202 indicates that the request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon. In contrast, 511 means that the client needs to authenticate to gain network access. Used by captive portals (hotel/airport WiFi).
설명
The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon.
이 코드를 보게 되는 경우
For async operations like batch jobs, email sending, or background tasks that take time to complete.
해결 방법
Poll the provided status URL or wait for a callback/webhook.
설명
The client needs to authenticate to gain network access. Used by captive portals (hotel/airport WiFi).
이 코드를 보게 되는 경우
When connecting to WiFi that requires login (airport, hotel, coffee shop).
해결 방법
Open a browser and complete the captive portal login process.
주요 차이점
202 is a 2xx Success response, while 511 is a 5xx Server Error response.
HTTP 202: The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon.
HTTP 511: The client needs to authenticate to gain network access. Used by captive portals (hotel/airport WiFi).
You encounter 202 when for async operations like batch jobs, email sending, or background tasks that take time to complete.
You encounter 511 when when connecting to WiFi that requires login (airport, hotel, coffee shop).
언제 어떤 것을 사용할지
For 202 (Accepted): Poll the provided status URL or wait for a callback/webhook. For 511 (Network Authentication Required): Open a browser and complete the captive portal login process.