Built by Abstract: powerful API's for every use case.
Learn more 🚀

HTTP Status Code
428 - Precondition Required

4xx Client errors

The HTTP Status Code 428 means that the origin server requires the request to be conditional.

Status code 428 is intended to prevent the 'lost update' problem. This problem arises when a client makes a GET request on a given resource's state, changes said state, and PUTs it back. And at the same time another client has made a change on the same resource on the server.

Additional Links and Codes Related to Status Code 428

Written by Benjamin Bouchet.
Last updated Sep 22, 2021.