# Lifetime

- Kind: `enum`
- 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/Lifetime.cs)

Lifetime modes for resources that can outlive the app host process.

## Definition

```csharp
namespace Aspire.Hosting.ApplicationModel;

public enum Lifetime
```

## Enum Members

| Name | Value | Description |
| --- | --- | --- |
| Session | 0 | Create the resource when the app host process starts and dispose of it when the app host process shuts down. |
| Persistent | 1 | Attempt to re-use a previously created resource if one exists. Do not destroy the resource on app host process shutdown. |