HTTP 202 Accepted vs 400 Bad Request
HTTP 202 (Accepted) is a 2xx Success response, while 400 (Bad Request) is a 4xx Client 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, 400 means that the server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
描述
The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon.
何时出现
For async operations like batch jobs, email sending, or background tasks that take time to complete.
如何修复
Poll the provided status URL or wait for a callback/webhook.
描述
The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
何时出现
When sending malformed JSON, missing required fields, or invalid query parameters.
如何修复
Check the request body format, validate all required fields, and ensure proper encoding.
主要区别
202 is a 2xx Success response, while 400 is a 4xx Client 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 400: The server cannot process the request due to malformed syntax, invalid request message framing, or deceptive request routing.
You encounter 202 when for async operations like batch jobs, email sending, or background tasks that take time to complete.
You encounter 400 when when sending malformed JSON, missing required fields, or invalid query parameters.
何时使用哪个
For 202 (Accepted): Poll the provided status URL or wait for a callback/webhook. For 400 (Bad Request): Check the request body format, validate all required fields, and ensure proper encoding.