@konker.dev/neverthrow-r-middleware

Type-safe HTTP middleware system built on @konker.dev/neverthrow-r. Composition is decorator-style: each middleware wraps an inner handler and returns a new handler.

import type { ResultAsyncR } from '@konker.dev/neverthrow-r/types';

export type Handler<I, R, O, E> = (i: I) => ResultAsyncR<R, O, E>;

The package is the ResultAsyncR-based counterpart to @konker.dev/middleware-fp (which is built on Effect).

Included middlewares

• identity / trivial — minimal decorator examples.
• jsonBodyParserRequest / jsonBodySerializerResponse — JSON request/response IO.
• bodyValidator — validates the request body against any Standard Schema validator (zod, valibot, arktype, effect/Schema, …).
• requestResponseLogger — logs request/response via the Logger threaded through the R channel.
• apiGatewayProxyEventV2Adapter — adapts an AWS API Gateway HTTP API event.
• honoAdapter — adapts a HonoRequest.