vld-ts

Generate TypeScript Zod schemas from JSON Schema definitions produced by vld.

Overview

vld-ts takes standard JSON Schema objects (as serde_json::Value) and converts them into TypeScript Zod schema code strings. This enables sharing a single validation contract between your Rust backend and TypeScript frontend.

Installation

[dependencies]
vld-ts = "0.1"
serde_json = "1"

Quick start

use vld_ts::{json_schema_to_zod, generate_zod_file};

// Single schema
let schema = serde_json::json!({
    "type": "object",
    "required": ["name", "email"],
    "properties": {
        "name": {"type": "string", "minLength": 2, "maxLength": 50},
        "email": {"type": "string", "format": "email"},
        "age": {"type": "integer", "minimum": 0}
    }
});

let zod = json_schema_to_zod(&schema);
// => z.object({ name: z.string().min(2).max(50), email: z.string().email(), ... })

// Generate a complete .ts file with multiple schemas
let schemas = vec![
    ("User", schema),
    ("Email", serde_json::json!({"type": "string", "format": "email"})),
];
let ts_file = generate_zod_file(&schemas);
println!("{}", ts_file);

Generated output

// Auto-generated by vld-ts — do not edit manually
import { z } from "zod";

export const UserSchema = z.object({
  name: z.string().min(2).max(50),
  email: z.string().email(),
  age: z.number().int().min(0).optional()
});
export type User = z.infer<typeof UserSchema>;

export const EmailSchema = z.string().email();
export type Email = z.infer<typeof EmailSchema>;

Supported JSON Schema features

Examples

cargo run -p vld-ts --example generate_zod

License

MIT