@loopback/docs/site/apidocs/pooling.poolingservice.run.md

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

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[Home](./index.md) &gt; [@loopback/pooling](./pooling.md) &gt; [PoolingService](./pooling.poolingservice.md) &gt; [run](./pooling.poolingservice.run.md)

## PoolingService.run() method

Run the task with an acquired resource from the pool. If task is completed successfully, the resource is returned to the pool. Otherwise, the resource is destroyed.

**Signature:**

```typescript
run(task: (resource: T) => ValueOrPromise<void>, requestCtx?: Context): Promise<void>;
```

## Parameters

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

Parameter


</th><th>

Type


</th><th>

Description


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

task


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

(resource: T) =&gt; [ValueOrPromise](./context.valueorpromise.md)<!-- -->&lt;void&gt;


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

A function that accepts a resource and returns a Promise.


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

requestCtx


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

[Context](./context.context.md)


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

_(Optional)_


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

**Returns:**

Promise&lt;void&gt;