RequestFilter (AHC/Client 3.0.0 API)

All Known Implementing Classes:

ThrottleRequestFilter
```
public interface RequestFilter
```
A Filter interface that gets invoked before making an actual request.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`<T> FilterContext<T>`	`filter(FilterContext<T> ctx)`	An `AsyncHttpClient` will invoke `filter(org.asynchttpclient.filter.FilterContext<T>)` and will use the returned `FilterContext.getRequest()` and `FilterContext.getAsyncHandler()` to continue the request processing.

- Method Detail
  - filter
```
<T> FilterContext<T> filter(FilterContext<T> ctx)
                     throws FilterException
```
    An AsyncHttpClient will invoke filter(org.asynchttpclient.filter.FilterContext<T>) and will use the returned FilterContext.getRequest() and FilterContext.getAsyncHandler() to continue the request processing.
    
    Type Parameters:
    
    T - the handler result type
    
    Parameters:
    
    ctx - a FilterContext
    
    Returns:
    
    FilterContext. The FilterContext instance may not the same as the original one.
    
    Throws:
    
    FilterException - to interrupt the filter processing.