> For the complete documentation index, see [llms.txt](https://attr.sygnal.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://attr.sygnal.com/sa5-data/data-sources/url-query-params.md).

# URL Querystring Data Source

Pass querystring params through to forms and text elements, automatically

Extract querystring parameters from the current URL, and apply the contents to tagged elements on your page.  

## Use Cases

* Use querystring data in your FORM data, to collect it for submissions ( e.g. `utm_` params )
* Pass querystring data through to other links on the page, so it will get carried through
* Use querystring data in visible fields, e.g. to personalize a page from an Email newsletter link click ( “Hey Mary!” )

Examples

$query

{% hint style="success" %}
**Shortcut.** `?` can be used as a shortcut in place of `$query.`, for example `?name` is equivalent to `$query.name` 
{% endhint %}

## Demonstration

{% embed url="<https://data-binding.webflow.io/query>" %}

{% embed url="<https://webflow.com/made-in-webflow/website/data-binding>" %}

## Demos  <a href="#usage-notes" id="usage-notes"></a>

{% embed url="<https://url-tracking.webflow.io/query>" %}
Demonstration page
{% endembed %}

{% embed url="<https://webflow.com/made-in-webflow/website/url-tracking>" %}
Cloneable site
{% endembed %}

## Getting Started  <a href="#getting-started-nocode" id="getting-started-nocode"></a>

### STEP 1 - Add the Library  <a href="#step-1---add-the-library" id="step-1---add-the-library"></a>

First, **add the library** as detailed in [Quick Start](/sa5-data/quick-start.md).&#x20;

### STEP 2 - Apply `wfu-bind` to Desired Elements <a href="#step-2---apply-wfu-query-param-to-desired-elements" id="step-2---apply-wfu-query-param-to-desired-elements"></a>

{% hint style="success" %}
For example, use `wfu-bind=?name` if you want to apply the value of querystring param `name` to that element.
{% endhint %}

See below for details.&#x20;

## Usage Notes <a href="#usage-notes" id="usage-notes"></a>

### `wfu-bind` = ( *data source* )&#x20;

**Required.** Place on any element where you want data binded from a source. &#x20;

For query

Configure everything using simple custom attributes.

This tool will carry any URL querystring params into your webpage, and apply them as follows;

* On any INPUT elements with a custom attribute of `wfu-bind=X`, WFU will replace the `value` attribute with the value of the querystring param `X`.&#x20;
* This works with `type=hidden` INPUT elements as well, so the data can be passed through invisibly.

```html
<input wfu-bind="?name" type="hidden" name="test2-field">
```

* The querystring param you use in `wfu-bind` is case-sensitive. `?name` and `?Name` are different.&#x20;
* Checkbox elements will be set to the boolean truthy value.
* Select elements will be set to the matching select value.&#x20;
* On any other elements with a custom attribute of `wfu-bind=X`, WFU will replace the inner text of the element with the value of the querystring param `X`.&#x20;