# wire:poll

The `wire:poll` directive provides an easy way to automatically refresh content at regular intervals, keeping your application's data current without requiring user interaction or complex real-time technologies.

## Basic Usage

This simple component demonstrates `wire:poll` with default intervals, custom timing, background polling, and viewport polling:

{% tabs %}
{% tab title="BoxLang" %}

```javascript
// wires/PollDemo.bx
class extends="cbwire.models.Component" {
    data = {
        "counter": 0,
        "timestamp": ""
    };

    function updateCounter() {
        data.counter++;
        data.timestamp = dateTimeFormat(now(), "HH:mm:ss");
    }

    function updateStatus() {
        data.timestamp = dateTimeFormat(now(), "HH:mm:ss");
    }
}
```

{% endtab %}

{% tab title="CFML" %}

```javascript
// wires/PollDemo.cfc
component extends="cbwire.models.Component" {
    data = {
        "counter" = 0,
        "timestamp" = ""
    };

    function updateCounter() {
        data.counter++;
        data.timestamp = dateTimeFormat(now(), "HH:mm:ss");
    }

    function updateStatus() {
        data.timestamp = dateTimeFormat(now(), "HH:mm:ss");
    }
}
```

{% endtab %}
{% endtabs %}

{% tabs %}
{% tab title="BoxLang" %}

```html
<!-- wires/pollDemo.bxm -->
<bx:output>
<div>
    <!-- Basic polling every 2.5 seconds (default) -->
    <div wire:poll="updateCounter">
        <h3>Auto Counter: #counter#</h3>
        <p>Last updated: #timestamp#</p>
    </div>
    
    <!-- Custom polling interval -->
    <div wire:poll.5s="updateStatus">
        <h3>5-Second Updates</h3>
        <p>Current time: #timestamp#</p>
    </div>
    
    <!-- Keep polling when tab is inactive -->
    <div wire:poll.10s.keep-alive="updateStatus">
        <h3>Background Polling</h3>
        <p>Polls even when tab inactive</p>
    </div>
    
    <!-- Poll only when visible -->
    <div wire:poll.15s.visible="updateStatus">
        <h3>Visible Polling</h3>
        <p>Only polls when on screen</p>
    </div>
</div>
</bx:output>
```

{% endtab %}

{% tab title="CFML" %}

```html
<!-- wires/pollDemo.cfm -->
<cfoutput>
<div>
    <!-- Basic polling every 2.5 seconds (default) -->
    <div wire:poll="updateCounter">
        <h3>Auto Counter: #counter#</h3>
        <p>Last updated: #timestamp#</p>
    </div>
    
    <!-- Custom polling interval -->
    <div wire:poll.5s="updateStatus">
        <h3>5-Second Updates</h3>
        <p>Current time: #timestamp#</p>
    </div>
    
    <!-- Keep polling when tab is inactive -->
    <div wire:poll.10s.keep-alive="updateStatus">
        <h3>Background Polling</h3>
        <p>Polls even when tab inactive</p>
    </div>
    
    <!-- Poll only when visible -->
    <div wire:poll.15s.visible="updateStatus">
        <h3>Visible Polling</h3>
        <p>Only polls when on screen</p>
    </div>
</div>
</cfoutput>
```

{% endtab %}
{% endtabs %}

## What wire:poll Does

When you add `wire:poll` to an element, CBWIRE automatically:

* **Calls your method repeatedly**: Executes the specified component method at regular intervals
* **Updates content automatically**: Refreshes the display with new data from each polling request
* **Optimizes performance**: Intelligently throttles polling when the browser tab is inactive
* **Manages resources**: Uses a default 2.5-second interval that balances freshness with server load

## Available Modifiers

You can customize polling behavior with these modifiers:

* **Timing**: `.5s`, `.15s`, `.5000ms` - Set custom polling intervals
* **Background**: `.keep-alive` - Continue polling when browser tab is inactive
* **Viewport**: `.visible` - Poll only when element is visible on screen

Combine modifiers as needed: `wire:poll.10s.keep-alive` or `wire:poll.15s.visible`


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://cbwire.ortusbooks.com/template-directives/wire-poll.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.