HTTP 205 Reset Content vs 409 Conflict
HTTP 205 (Reset Content) is a 2xx Success response, while 409 (Conflict) 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, 409 means that the request conflicts with the current state of the server. Often due to concurrent modification or business rule violations.
Описание
The server fulfilled the request and the client should reset the document view (e.g., clear a form).
Когда вы это видите
After form submissions where the server wants the client to reset the form for new input.
Как исправить
The client should clear the form or reset the view. Rarely used in practice.
Описание
The request conflicts with the current state of the server. Often due to concurrent modification or business rule violations.
Когда вы это видите
When trying to create a resource that already exists, or updating a resource that was modified by another request.
Как исправить
Refresh the resource state, resolve conflicts, and retry. Use ETags for optimistic concurrency.
Ключевые различия
205 is a 2xx Success response, while 409 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 409: The request conflicts with the current state of the server. Often due to concurrent modification or business rule violations.
You encounter 205 when after form submissions where the server wants the client to reset the form for new input.
You encounter 409 when when trying to create a resource that already exists, or updating a resource that was modified by another request.
Когда что использовать
For 205 (Reset Content): The client should clear the form or reset the view. Rarely used in practice. For 409 (Conflict): Refresh the resource state, resolve conflicts, and retry. Use ETags for optimistic concurrency.