# ResourceEvent

- Kind: `class`
- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Version: `13.4.0`
- Namespace: `Aspire.Hosting.ApplicationModel`
- Target framework: `net8.0`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/a3766e994fd2cba86c8ac60b8a80268cab7e6383/src/Aspire.Hosting/ApplicationModel/ResourceNotificationService.cs)

Represents a change in the state of a resource.

## Definition

```csharp
namespace Aspire.Hosting.ApplicationModel;

public class ResourceEvent
{
    // ...
}
```

## Constructors

- [ResourceEvent(IResource, string, CustomResourceSnapshot)](/reference/api/csharp/aspire.hosting/resourceevent/constructors.md#constructor-iresource-string-customresourcesnapshot) -- Represents a change in the state of a resource.

## Properties

- [Resource](/reference/api/csharp/aspire.hosting/resourceevent/properties.md#resource) : [IResource](/reference/api/csharp/aspire.hosting/iresource.md) `get` -- The resource associated with the event.
- [ResourceId](/reference/api/csharp/aspire.hosting/resourceevent/properties.md#resourceid) : `string` `get` -- The unique id of the resource.
- [Snapshot](/reference/api/csharp/aspire.hosting/resourceevent/properties.md#snapshot) : [CustomResourceSnapshot](/reference/api/csharp/aspire.hosting/customresourcesnapshot.md) `get` -- The snapshot of the resource state.