@loopback/docs/site/apidocs/extension-logging.loggingbindings.winston_logger.md

Documentation for LoopBack 4

---
lang: en
title: 'API docs: extension-logging.loggingbindings.winston_logger'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next/tree/master/extensions/logging
permalink: /doc/en/lb4/apidocs.extension-logging.loggingbindings.winston_logger.html
---

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[Home](./index.md) &gt; [@loopback/extension-logging](./extension-logging.md) &gt; [LoggingBindings](./extension-logging.loggingbindings.md) &gt; [WINSTON\_LOGGER](./extension-logging.loggingbindings.winston_logger.md)

## LoggingBindings.WINSTON\_LOGGER variable

Binding key for winston logger

<b>Signature:</b>

```typescript
WINSTON_LOGGER: BindingKey<WinstonLogger>
```