# DeeplinkHandlerAttribute(string)

> Declares a method as a handler for application-level deeplinks.

## Definition

* **Type:** Constructor
* **Namespace:** [UnityEditor](/engine/6000.6/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public DeeplinkHandlerAttribute(string value)
```

### Parameters

**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): 

### Remarks

This attribute allows you to register a deeplink handler for application-level deeplinks received by the Unity Editor that match a given namespace. For more information about deeplinking, refer to [Deeplinking support for local projects](https://docs.unity3d.com/hub/manual/DeeplinkingSupport.html) in the Unity Hub documentation.

Apply this attribute to public static methods. This attribute requires the `UnityEditor` namespace and can be used only in the Unity Editor.

Decorated methods are analyzed and signaled as validated or unvalidated when a deeplink is forwarded to them. Only decorated methods that belong to packages delivered through the Unity Package Manager registry, or have a [signature](/engine/6000.6/manual/packages-list/upm-signature-lp/upm-signature.md) that's verified are signaled as validated. Unvalidated methods require the end-user to manually validate the deeplink operation through a dialog prompt.

### Examples

```csharp
// Example script that decorates a public static method to serve as a deeplink handler 
// for com.unity.editor://editor/my.namespace.editor/* formatted urls.

using System;
using UnityEngine;
using UnityEditor;

namespace My.Namespace.Editor
{
    public class MyClass
    {
        // OnDeeplinkActivated will receive com.unity.editor://editor/my.namespace.editor/* formatted urls. 
        [DeeplinkHandler("My.Namespace.Editor")]
        public static void OnDeeplinkActivated(Uri uri)
        {
            Debug.Log($"Received deeplink: {uri.AbsoluteUri}");
        }
    }
}
```