@lucid-softworks/schema-object

Typed object schemas with required and optional fields. Unknown keys can be stripped (the default), passed through, or rejected.

import {
  objectSchema,
  optionalSchema,
  partialShape,
} from "@lucid-softworks/schema-object";
import { numberSchema, stringSchema } from "@lucid-softworks/schema-primitives";

const userShape = {
  age: optionalSchema(numberSchema({ minimum: 0 })),
  name: stringSchema(),
};

const user = objectSchema(userShape, { unknownKeys: "strict" });
const userUpdate = objectSchema(partialShape(userShape));

pickShape and omitShape create type-preserving derived shapes. Dangerous property names such as __proto__ are copied as ordinary own properties.