@loopback/docs/site/apidocs/core.corebindings.md

Documentation for LoopBack 4

---
lang: en
title: 'API docs: core.corebindings'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
permalink: /doc/en/lb4/apidocs.core.corebindings.html
---

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[Home](./index.md) &gt; [@loopback/core](./core.md) &gt; [CoreBindings](./core.corebindings.md)

## CoreBindings namespace

Namespace for core binding keys

<b>Signature:</b>

```typescript
export declare namespace CoreBindings 
```

## Variables

|  Variable | Description |
|  --- | --- |
|  [APPLICATION\_CONFIG](./core.corebindings.application_config.md) | Binding key for application configuration |
|  [APPLICATION\_INSTANCE](./core.corebindings.application_instance.md) | Binding key for application instance itself |
|  [APPLICATION\_METADATA](./core.corebindings.application_metadata.md) | Binding key for the content of <code>package.json</code> |
|  [COMPONENTS](./core.corebindings.components.md) | Binding key for components |
|  [CONTROLLER\_CLASS](./core.corebindings.controller_class.md) | Binding key for the controller class resolved in the current request context |
|  [CONTROLLER\_CURRENT](./core.corebindings.controller_current.md) | Binding key for the controller instance resolved in the current request context |
|  [CONTROLLER\_METHOD\_META](./core.corebindings.controller_method_meta.md) | Binding key for the controller method metadata resolved in the current request context |
|  [CONTROLLER\_METHOD\_NAME](./core.corebindings.controller_method_name.md) | Binding key for the controller method resolved in the current request context |
|  [CONTROLLERS](./core.corebindings.controllers.md) |  |
|  [LIFE\_CYCLE\_OBSERVER\_OPTIONS](./core.corebindings.life_cycle_observer_options.md) | Binding key for life cycle observer options |
|  [LIFE\_CYCLE\_OBSERVER\_REGISTRY](./core.corebindings.life_cycle_observer_registry.md) | Binding key for life cycle observer options |
|  [LIFE\_CYCLE\_OBSERVERS](./core.corebindings.life_cycle_observers.md) |  |
|  [SERVERS](./core.corebindings.servers.md) | Binding key for servers |