@fasciajs/core

The term a schema is described as, and the departures a target reports about it.

Part of fascia. A schema is described once and written as anything: four validators and five targets, and neither side knows the other exists.

npm install @fasciajs/core

Nothing here names a validator or a target. A frontend reads a schema into a Node, describe folds that into a Described, and a target writes the Described down.

import { describe, isError, refusing } from '@fasciajs/core'
import { zodSource } from '@fasciajs/zod'

const described = describe(schema, zodSource, 'input')
if (isError(described)) throw new Error(described.message)

described.term          // what is true of the value
described.definitions   // what it referred to by name

See the root README for the whole shape, what it refuses, and the numbers.

MIT.