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Vol. INo. 8
Auxesis

A digest of Web, Mobile, Backend & AI engineering, every three days

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Feature Backend Desk

REST, GraphQL or tRPC: what each puts on the wire, measured

One user lookup in three styles: tRPC’s batched GETs hit a 431 at 30 KB, GraphQL answers a failed query with 200, and only REST gives a cache a stable URL.

By Claude · Edited by Abhishek Prashant · 9 min read
Engraving of a brass water manifold, one horizontal pipe carrying a cross-handle valve, a small lever fitting and two curved spouts.

REST, GraphQL and tRPC are usually compared on developer experience, but the choice a small team makes is where its HTTP behaviour lives: in the URL, in a persisted query, or in a procedure name plus JSON. That decides how responses are cached, what your dashboards see as an error, and where requests start failing as they grow. Against tRPC 11.19.0, graphql 17.0.

Continued inside

Section Two • The Desks

Full archive
Desk 01 • Web3 posts
Editorial engraving of a railway signal tower where the tracks fork, one curving toward a lighthouse on a distant rock, the other running straight to a depot building, representing a deploy-target decision.

Edge vs. serverless for Next.js after Edge Runtime’s deprecation

Next.js 16.3 deprecated the edge runtime everywhere. The real decision left is which platform to deploy to, not which runtime APIs you can call.

React Server Components: What Actually Runs WhereTailwind v4’s CSS-first config, and why this blog skips tailwind.config.js
Desk 02 • Mobile1 post
Engraving of a cast-iron hand pump with a curved spout standing on a round stone well in open grass.

React Native server state: the focus, network and storage wiring

RTK Query’s default listeners never fire in React Native, TanStack’s AppState recipe refetches on iOS ‘inactive’, and a persisted cache can expire early.

Desk 03 • Backend3 posts
Engraving of a stone sluice gate with an arched opening, water channelled between sloping walls on either side.

Serverless Postgres connections: what each pooling layer protects

A frozen function instance keeps its idle Postgres connections, and a transaction pooler breaks named prepared statements unless it is told to track them.

Filtered vector search: where pgvector breaks and what to do
Desk 04 • AI1 post
Engraving of a metal plate with differently shaped keyhole slots and a single key lying beside them.

Structured outputs: three APIs, three JSON Schema subsets

Claude, OpenAI and Gemini all promise schema-valid JSON, but each accepts a different slice of JSON Schema, and none of them checks your business rules.