# @awssolutions/cdf-config-inject

node-config variables are injected into inversify IoC container.
If you are using inversify with node-config this library will be useful.
If property is not found, injection will fail fast and you will get initialization error.

## Getting Started

Add "@awssolutions/cdf-config-inject": "^1.0.0" to the dependencies section of the package.json file or run:

```
npm install @awssolutions/cdf-config-inject
```

## Usage

- Instantiate and load config injector into your inversify container
- add @inject annotation with config variables

Instante CDFConfigInjector in your inversify.config.js and load it into container as follows

```javascript
	import { CDFConfigInjector } from @awssolutions/cdf-config-inject;

    const configInjector = new CDFConfigInjector();
    container.load(configInjector.getConfigModule());
```

Inject config variables from config files into your services as follows

```javascript
@injectable()
export class TestService {
  constructor(@inject('aws.region') public awsRegion: string,
              @inject('aws.db.connection_url') public dbConnectionString: string) { }
}
```

Configuration YAML for above injection should look like :

```yaml
aws:
  region: 'us-west-2'
  db:
    connection_url: 'https://testdb'
```