412Precondition Failed

Precondition failed

#When does this occur?

Returned when the conditions specified in conditional headers like If-Match or If-None-Match are not met.

#How to handle?

Check the current state of the resource and update the conditional header values (If-Match, etc.).

#Example

HTTP Response

HTTP/1.1 412 Precondition Failed
Content-Type: application/json
Date: Tue, 10 Feb 2026 07:16:39 GMT

{
  "status": 412,
  "message": "Precondition Failed"
}

#Related Status Codes

400Bad Request 401Unauthorized 402Payment Required 403Forbidden 404Not Found

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