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

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[Home](./index.md) &gt; [@loopback/context](./context.md) &gt; [BindingSource](./context.bindingsource.md)

## BindingSource type

Source for the binding, including the type and value

<b>Signature:</b>

```typescript
export declare type BindingSource<T> = ConstantBindingSource<T> | DynamicValueBindingSource<T> | ClassBindingSource<T> | ProviderBindingSource<T> | AliasBindingSource<T>;
```

