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lang: en
title: 'API docs: context.bindingkey.tostring'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/context
permalink: /doc/en/lb4/apidocs.context.bindingkey.tostring.html
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[Home](./index.md) > [@loopback/context](./context.md) > [BindingKey](./context.bindingkey.md) > [toString](./context.bindingkey.tostring.md)
## BindingKey.toString() method
<b>Signature:</b>
```typescript
toString(): string;
```
<b>Returns:</b>
string