HTTP 200 OK vs 400 Bad Request
HTTP 200 (OK) is a 2xx Success response, while 400 (Bad Request) 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, 400 means that the server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
Mô tả
The request succeeded. The meaning depends on the HTTP method: GET returns the resource, POST reports the action result, HEAD returns headers only.
Khi bạn thấy mã này
The most common HTTP response — indicates the request was processed successfully.
Cách khắc phục
No fix needed. The request succeeded as expected.
Mô tả
The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
Khi bạn thấy mã này
When sending malformed JSON, missing required fields, or invalid query parameters.
Cách khắc phục
Check the request body format, validate all required fields, and ensure proper encoding.
Sự khác biệt chính
200 is a 2xx Success response, while 400 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 400: The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
You encounter 200 when the most common HTTP response — indicates the request was processed successfully.
You encounter 400 when when sending malformed JSON, missing required fields, or invalid query parameters.
Khi nào dùng cái nào
For 200 (OK): No fix needed. The request succeeded as expected. For 400 (Bad Request): Check the request body format, validate all required fields, and ensure proper encoding.