---
lang: en
title: 'API docs: logging.winstonloggerprovider._constructor_'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/extensions/logging
permalink: /doc/en/lb4/apidocs.logging.winstonloggerprovider._constructor_.html
---

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[Home](./index.md) &gt; [@loopback/logging](./logging.md) &gt; [WinstonLoggerProvider](./logging.winstonloggerprovider.md) &gt; [(constructor)](./logging.winstonloggerprovider._constructor_.md)

## WinstonLoggerProvider.(constructor)

Constructs a new instance of the `WinstonLoggerProvider` class

**Signature:**

```typescript
constructor(
    transports: Getter<Transport[]>, 
    formats: Getter<Format[]>, 
    options?: LoggerOptions);
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

transports


</td><td markdown="1">

Getter&lt;Transport\[\]&gt;


</td><td markdown="1">


</td></tr>
<tr><td markdown="1">

formats


</td><td markdown="1">

Getter&lt;Format\[\]&gt;


</td><td markdown="1">


</td></tr>
<tr><td markdown="1">

options


</td><td markdown="1">

LoggerOptions


</td><td markdown="1">

_(Optional)_


</td></tr>
</tbody></table>