428 Precondition Required
The HTTP 428 Precondition Required
response status code
indicates that the server requires the request to be conditional.
Typically, this means that a required precondition header, such
as If-Match
, is missing.
When a precondition header is not matching the server side state, the
response should be 412
Precondition Failed
.
Status
428 Precondition Required
Specifications
Specification | Title |
---|---|
RFC 6585, section 3: 428 Precondition Required | Additional HTTP Status Codes |