@lucid-softworks/schema-transform

Composable post-parse refinements, output transformations, input preprocessing, defaults, and schema pipelines.

import {
  defaultSchema,
  preprocessSchema,
  refineSchema,
  transformSchema,
} from "@lucid-softworks/schema-transform";

const positive = refineSchema(numberSchema(), (value) => value > 0, {
  message: "Expected a positive number",
});
const port = preprocessSchema(Number, positive);
const trimmed = transformSchema(stringSchema(), (value) => value.trim());
const host = defaultSchema(stringSchema(), () => "localhost");

Thrown preprocessing and transformation errors become structured schema issues. Defaults are factories so mutable default values can be created per parse.