# OnFailAction

**Declaration**

```csharp
public static RequestParameterOption OnFailAction(Action action)
```

#### Parameters

| action | Action that will be invoked on failed request. |
| ------ | ---------------------------------------------- |

#### Declaration

```csharp
public static RequestParameterOption OnFailAction(Action<CallbackInfo> action)
```

#### Parameters

| action | Action that will be invoked on failed request and passed a CallbackInfo as an action. |
| ------ | ------------------------------------------------------------------------------------- |

#### Description

Pass an action into make process that will be invoked on a failed model creation or request.