> For the complete documentation index, see [llms.txt](https://docs.eternals.game/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.eternals.game/gdk-documentation/unity/api-reference/v1.0.0/ninetyeight.nelogincallback.md).

# NinetyEight.NELoginCallback

## Delegate NELoginCallback <a href="#ninetyeight_nelogincallback" id="ninetyeight_nelogincallback"></a>

Namespace: NinetyEight\
Assembly: APIReference.dll

Callback for login operations.

```csharp
public delegate void NELoginCallback(int errorCode, NELoginData data)
```

**Parameters**

`errorCode` [int](https://learn.microsoft.com/dotnet/api/system.int32)

0 if successful, non-zero if failed.

`data` NELoginData

Login data, or null if login failed.
