api-design – Page 21 – Türker Yıldırım

A 500 from fetch is a resolved promise, not a rejected one

NoteAugust 29, 20182 min read

A promise from fetch resolves for any response the server returned, including a 500, and rejects only when the request could not be made at all. This is…

Deleting a user is harder than creating one

Deep diveAugust 16, 20189 min read

The delete request arrived and the row was the easy part. Foreign keys model structure, not ownership — and the person is in six other places.

Retry an HTTP call with exponential backoff in PHP

SnippetMay 22, 20181 min read

Cursor pagination survives an insert; offset does not

NoteApril 19, 20182 min read

Offset pagination on a list ordered by recency shows an item twice when a new row arrives between page one and page two, and skips one when a…

What the regulation actually asks of a schema

Deep diveMarch 24, 201815 min read

The deadline is in May and the work is not a cookie banner. An inventory first, because everything else depends on knowing which tables hold what.

IActionResult, and returning a status without inventing a shape

NoteMarch 13, 20182 min read

A PHP controller returns whatever the framework will serialise and the status code is set separately, which is why every codebase grows its own response helper. The return…

An error code is a contract, an error message is not

NoteFebruary 14, 20181 min read

A client matching on the text of an error breaks when somebody improves the wording, translates it, or fixes a typo — and every one of those will…

Symfony 4 and the bundle that does not exist

Deep diveJanuary 24, 201810 min read

A new project used to arrive with forty megabytes of vendor code and one route. The framework got smaller, and the interesting part is what happens at install…

Idempotency keys, and where they have to be stored

NoteJanuary 18, 20182 min read

A client that times out and retries has sent the same request twice, and the server cannot tell whether the first one succeeded. The key makes the retry…

The Responsable interface removes a controller branch

NoteDecember 28, 20172 min read

A controller returning either a view or JSON depending on the request ends up with the same conditional in every action, and the decision has nothing to do…