> For the complete documentation index, see [llms.txt](https://lionstudios.gitbook.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lionstudios.gitbook.io/readme/features/whoami-service/shared-service.md).

# Shared Service

### **Introduction**

`WhoAmIShared` is a service within `WhoAmIService` that provides player-related information based on all the data we may have of them across our games portfolio.

### Usage

The following helper functions are available, allowing developers to easily access common player attributes without dealing with API requests directly.

<table><thead><tr><th width="163">Function Name</th><th width="422">Description</th><th>Return Value</th></tr></thead><tbody><tr><td>IsPayer</td><td>Checks if the player has made any previous purchases in this or any other LionStudio game.</td><td>Boolean</td></tr></tbody></table>

**Example**

```csharp
bool isPlayerIsPayer = await WhoAmIService.Shared.IsPayer();
```

### Advanced Usage

If developers need additional data beyond the predefined functions, a **generic method** is available. This method allows retrieving custom values without requiring LionSDK update.

**Generic method:** The `GetValue<T>()` function enables fetching custom data based on a specified key. The returned value can be of any primitive data type or a custom class.

* Code signature

  ```csharp
  WhoAmIService.GetValue<T>("key");
  ```
* Full Example:

  ```csharp
  bool isPlayerIsPayer = await WhoAmIService.Shared.GetValue<bool>("is_payer");
  ```

{% hint style="info" %}
`Key` parameter in `GetValue<T>` function is defined by Lion Studios team.
{% endhint %}


---

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