https://github.com/alxevvv/nest-zod-config

Define NestJS configuration with validation and type safety using zod
https://github.com/alxevvv/nest-zod-config

config configuration dotenv nest nestjs typescript zod

Last synced: about 1 month ago
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Define NestJS configuration with validation and type safety using zod

• Host: GitHub
• URL: https://github.com/alxevvv/nest-zod-config
• Owner: alxevvv
• License: mit
• Created: 2023-07-08T22:22:02.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-11-01T08:52:30.000Z (about 1 year ago)
• Last Synced: 2024-10-12T18:21:42.520Z (2 months ago)
• Topics: config, configuration, dotenv, nest, nestjs, typescript, zod
• Language: TypeScript
• Homepage:
• Size: 93.8 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# nest-zod-config

Define NestJS configuration with validation and type safety using zod

## Install

```

npm install zod nest-zod-config

```

If you want to load configuration from `.env` file, also install

[dotenv](https://github.com/motdotla/dotenv) package:

```

npm install dotenv

```

## Example

```properties

# .env

port=3000

str=something

```

### Usage in NestJS module

```typescript

// app.config.ts

import { Config } from 'nest-zod-config';

import { z } from 'zod';

const appConfigSchema = z.object({

  port: z.number(),

  str: z.string(),

});

export class AppConfig extends Config(appConfigSchema) {}

```

```typescript

// app.service.ts

import { Injectable } from '@nestjs/common';

import { AppConfig } from './app.config';

@Injectable()

export class AppService {

  constructor(private readonly config: AppConfig) {}

  someMethod() {

    // `this.config` now contains your configuration with types:

    // { port: 3000, str: 'something' }

  }

}

```

```typescript

// app.module.ts

import { ZodConfigModule, dotEnvLoader } from 'nest-zod-config';

import { AppConfig } from './app.config';

import { AppService } from './app.service';

@Module({

  imports: [

    ZodConfigModule.forRootAsync({

      config: AppConfig,

      loader: dotEnvLoader(),

    }),

  ],

  providers: [AppService],

})

export class AppModule {}

```

### Usage outside of NestJS modules

For example in the `bootstrap` function before application creation:

```typescript

// main.ts

import { NestFactory } from '@nestjs/core';

import { dotEnvLoader, loadConfig } from 'nest-zod-config';

import { AppModule } from './app.module';

import { AppConfig } from './app.config';

async function bootstrap() {

  const config = await loadConfig(AppConfig, dotEnvLoader());

  const app = await NestFactory.create(AppModule);

  await app.listen(config.PORT);

}

bootstrap();

```

## License

Licensed under the MIT license. Copyright (c) 2023-present Vladislav Alexeev