---
lang: en
title: 'API docs: context.injection'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/packages/context
permalink: /doc/en/lb4/apidocs.context.injection.html
---

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[Home](./index.md) &gt; [@loopback/context](./context.md) &gt; [Injection](./context.injection.md)

## Injection interface

Descriptor for an injection point

<b>Signature:</b>

```typescript
export interface Injection<ValueType = BoundValue> 
```

## Properties

|  Property | Type | Description |
|  --- | --- | --- |
|  [bindingSelector](./context.injection.bindingselector.md) | [BindingSelector](./context.bindingselector.md)<!-- -->&lt;ValueType&gt; |  |
|  [member?](./context.injection.member.md) | string | <i>(Optional)</i> |
|  [metadata](./context.injection.metadata.md) | [InjectionMetadata](./context.injectionmetadata.md) |  |
|  [methodDescriptorOrParameterIndex?](./context.injection.methoddescriptororparameterindex.md) | TypedPropertyDescriptor&lt;ValueType&gt; \| number | <i>(Optional)</i> |
|  [resolve?](./context.injection.resolve.md) | [ResolverFunction](./context.resolverfunction.md) | <i>(Optional)</i> |
|  [target](./context.injection.target.md) | Object |  |