TimeBack Problem Types

Precondition required

This page documents the stable RFC 7807 Problem type URI https://platform3-andymontgomery-9773s-projects.vercel.app/problems/precondition-required.

Code

precondition_required

Status

428

Meaning

A write that protects current state omitted its required validator header.

Resolution

Read the resource, copy the current ETag or documented validator, and retry with If-Match.

Every TimeBack surface emits Problem type URIs on https://platform3-andymontgomery-9773s-projects.vercel.app/problems/... so clients can branch on one documented host across modules.