env42_core_zod_schema_typesafe_env_variable_parsing.ts

1import { createEnv } from "@env42/core";
2import { z } from "zod";
3
4/**
5 * Define your environment schema using Zod.
6 * This ensures your environment variables are validated and type-safe.
7 */
8export const env = createEnv({
9  server: {
10    DATABASE_URL: z.string().url(),
11    NODE_ENV: z.enum(["development", "test", "production"]),
12  },
13  client: {
14    NEXT_PUBLIC_API_URL: z.string().url(),
15  },
16  // Use the runtime environment (process.env for Node.js)
17  runtimeEnv: process.env,
18});
19
20// Example usage:
21console.log(env.DATABASE_URL); // Fully typed as string
22console.log(env.NODE_ENV);     // Typed as "development" | "test" | "production"