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https://github.com/hapinessjs/config

Configuration library based on node-config library
https://github.com/hapinessjs/config

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Configuration library based on node-config library

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# Hapiness Config

Configuration module based on [node-config](https://github.com/lorenwest/node-config) & [js-yaml](https://github.com/nodeca/js-yaml) libraries.

## Table of contents

* [Using config module](#using-config-module)
* [Yarn or NPM it in your package.json](#yarn-or-npm-it-in-your-packagejson)
* [Standalone](#standalone)
* [Hapiness](#hapiness)
* [Change History](#change-history)
* [Maintainers](#maintainers)
* [License](#license)

## Using config module

### `yarn` or `npm` it in your `package.json`

```bash
$ npm install --save @h@hapiness/config

or

$ yarn add @hapiness/config
```

```javascript
"dependencies": {
"@hapiness/config": "^1.2.1",
//...
}
//...
```

### Standalone

`./config/default.yml`:

```yaml
my:
config: test
```

`Node.js Script`:

```javascript
import { Config } from '@hapiness/config';

if (Config.has('my.config')) {
console.log(Config.get('my.config')); // output: 'test'
}
```

### Hapiness

`./config/default.yml`:

```yaml
external_service:
baseUrl: 'test'

mymodule_database:
provider: postgresql
hostname: localhost
user: pguser
password: keyboard cat
```

`Hapiness module`:

```javascript
// external-module.ts
import {
HapinessModule,
CoreModuleWithProviders,
InjectionToken,
Inject,
Optional,
} from '@hapiness/core';

import { ConfigHelper, ConfigInterface } from '@hapiness/config';

@HapinessModule({
...
})

export class ExternalModule {
static setConfig(config: ConfigInterface): CoreModuleWithProviders {
return {
module: ExternalModule,
providers: [ConfigHelpers.getProvider('mymodule_database', config)]
};
}
}

export class Service {
constructor(@Optional() @Inject(ConfigHelper.getInjectionToken('mymodule_database')) config) { // @Optional to not throw errors if config is not passed
...
}
}
```

```javascript

// main-module.ts
import {
HapinessModule,
} from '@hapiness/core';
import { ExternalModule } from 'external-module';
import { Config } from '@hapiness/config';

@HapinessModule({
...
imports: [ ExternalModule.setConfig(Config.get('mymodule_database')) ]
})
...
```

`Hapiness service`:

```javascript

// main-module.ts
import {
HapinessModule,
} from '@hapiness/core';
import { ConfigHelper, Config } from '@hapiness/config';
import { MyCustomService } from './services';

@HapinessModule({
...
providers: [
ConfigHelper.getProvider('external_service'),
MyCustomService,
...
]
})
...
```

```javascript
import { Injectable } from '@hapiness/core';
import { ConfigInterface } from '@hapiness/config';

// my-custom-service.ts
@Injectable()
class MyCustomService {

private _baseUrl: string;

constrcutor(
@Inject(ConfigHelper.getInjectionToken('external_service'))
private _config: ConfigInterface
) {}

connect() {
this._baseUrl = this._config.get('baseUrl');
}

}
...
```

[Back to top](#table-of-contents)

## Change History
* v1.2.1 (2018-09-26)
* Fix a bug when default value of `get()` was a falsy value and wrongly interpreted as undefined
* v1.2.0 (2018-05-09)
   * Delete obsolete `peerDependencies`
* Latest packages' versions
* Documentation
* v1.1.1 (2017-12-28)
   * Fix load `config`
* v1.1.0 (2017-11-20)
* Latest packages' versions.
* Documentation.
* Change packaging process.
* v1.0.0 (2017-10-27)
* Create `Config` module.
* Tests module.
* Documentation.
* First stable version.

[Back to top](#table-of-contents)

## Maintainers


tadaweb








Julien Fauville
Antoine Gomez
Sébastien Ritz
Nicolas Jessel

[Back to top](#table-of-contents)

## License

Copyright (c) 2018 **Hapiness** Licensed under the [MIT license](https://github.com/hapinessjs/config/blob/master/LICENSE.md).

[Back to top](#table-of-contents)