# Interceptor

`BlazorComponentBase` designed interceptors to change lifecycle of component that can recognize definitions of component

<figure><img src="/files/dtrnIZLOq45uwt3qzgWJ" alt=""><figcaption></figcaption></figure>

### Custom Interceptors

Implement `ICompnentInterceptor` or derived `ComponentInterceptorBase` (Recommand)

```csharp
public class LogInterceptor : ComponentInterceptorBase
{
    public override void InterceptOnInitialized(IBlazorComponent component)
    {
        // invoke in OnInitialized() method
        
        if(component is not BlazorComponentBase componentBase)
        {
            return;
        }
        
        //Write your code
    }
}
```

Configure to add this interceptors

```csharp
builder.Service.AddComponentBuilder(configure => {
    configure.Interceptors.Add(new LogInterceptor());
})
```

### Internal Interceptors

* AssociaitionComponentInterceptor
* ChildContentInterceptor
* CssClassAttributeInterceptor
* FormComponentInterceptor
* NavLinkComponentInterceptor
* StyleAttributeInterceptor


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