fireodm/dist/esm/core/validation.js

A basic and extensible ODM for the Firestore Admin SDK in Node.js with decorators, relationships, and validation.

import "reflect-metadata";
import { z } from "zod";
const VALIDATION_KEY = Symbol("validation:properties");
/**
 * Decorator to attach a Zod schema to a class property.
 */
export function Validate(schema) {
    return function (target, propertyKey) {
        const existing = Reflect.getOwnMetadata(VALIDATION_KEY, target.constructor) || {};
        existing[propertyKey] = schema;
        Reflect.defineMetadata(VALIDATION_KEY, existing, target.constructor);
    };
}
/**
 * Builds a Zod schema for the class by collecting all @Validate decorators.
 * Returns a ZodType that parses into the class instance type T.
 */
export function getValidationSchema(ctor) {
    const shape = Reflect.getOwnMetadata(VALIDATION_KEY, ctor) || {};
    const base = z.object(shape).strict();
    // Transform to cast the parsed object into the class instance shape
    // Cast to ZodSchema<T> to satisfy TS typing
    return base.transform((obj) => obj);
}
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