zazoomauro/node-dependency-injection-express-middleware

Node Dependency Injection Express Middleware
============================================

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A Node Dependency Injection middleware for Express

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Installation
------------

```sh
npm install --save node-dependency-injection-express-middleware
```

Usage
-----------

#### Minimal configuration
```js
import NodeInjectionMiddleware from 'node-dependency-injection-express-middleware'
import express from 'express'

const app = express()

const options = {serviceFilePath: 'some/path/to/config.yml'}
app.use(new NodeInjectionMiddleware(options).middleware())
```

### Options

| Name                        | Required | Type Value      | Default Value  |
| --------------------------- | -------- | --------------- | -------------- |
| serviceFilePath             | true     | string          |                |
| compile                     | false    | boolean         | false          |
| compilerPass                | false    | array           | []             |
| logger                      | false    | class or object | null           |
| containerReferenceAsService | false    | boolean         | false          |
| defaultDir                  | false    | string          | null           |

### How to use all options

```js
import MyCustomPass from 'CompilerPass/MyCustomPass'
import AnotherAwesomePass from 'CompilerPass/AnotherAwesomePass'
import MyCustomLogger from 'MyCustomLogger'
import NDIMiddleware from 'node-dependency-injection-express-middleware'
import express from 'express'

const app = express()

const options = {
  serviceFilePath: 'some/path/to/config.yml', 
  compile: true,
  compilerPass: [new MyCustomPass(), new AnotherAwesomePass()],
  logger: new MyCustomLogger(),
  containerReferenceAsService: true,
  defaultDir: '/some/cool/dir',
}
app.use(new NDIMiddleware(options).middleware())
```

### How to get the container

```js
app.get('/some/action', (req, res, next) => {
  const container = req.container
  const myAwesomeService = container.get('some.awesome.service')
  ...
})
```

> Please, read the [FULL DOCUMENTATION](https://github.com/zazoomauro/node-dependency-injection/wiki)

Resources
---------

- [Documentation](https://github.com/zazoomauro/node-dependency-injection/wiki)
- [Collaboration and pull requests](CONTRIBUTING.md)
- [Twitter @zazoomauro](https://twitter.com/zazoomauro)
- [Changelog](CHANGELOG.md)