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@arundo/typed-env
Advanced tools
Typed environment variables using Zod.
npm install @arundo/typed-env
# or
yarn add @arundo/typed-env
# or
pnpm add @arundo/typed-env
Create a environment file with a schema and use typeEnvironment
to create a typed environment object:
// environment.ts
import { z } from 'zod';
import { typeEnvironment } from '@arundo/typed-env';
export const envSchema = z.object({
NODE_ENV: z.enum(['test', 'development', 'production']),
PORT: z.coerce.number().int().default(3000),
});
export const environment = typeEnvironment(envSchema);
Import the environment object and use it:
// server.ts
import { environment } from './environment';
console.log(environment.NODE_ENV); // 'development' - type string
console.log(environment.PORT); // 3000 - type number
Set naming convention of environment variables:
// environment.ts
/* ... as usual ... */
export const environment = typeEnvironment(envSchema, { transform: 'camelcase' });
// server.ts
import { environment } from './environment';
console.log(environment.nodeEnv); // 'development' - type string
console.log(environment.port); // 3000 - type number
If you for some reason need to access the raw environment object, you can add types like this:
// environment.ts
import { z } from 'zod';
import { typeEnvironment } from '@arundo/typed-env';
export const envSchema = z.object({
PORT: z.coerce.number().int().default(3000),
});
export const environment = typeEnvironment(envSchema, { transform: 'camelcase' });
declare global {
namespace NodeJS {
interface ProcessEnv extends Record<keyof z.infer<typeof envSchema>, string | undefined> {}
}
}
console.log(process.env.PORT); // '3000' - type string | undefined
FAQs
Typed environment variables made easy 🚀
We found that @arundo/typed-env demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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