ResponseFilter (AHC/Client 3.0.0 API)

```
public interface ResponseFilter
```
A Filter interface that gets invoked before making the processing of the response bytes. ResponseFilter are invoked before the actual response's status code get processed. That means authorization, proxy authentication and redirects processing hasn't occurred when ResponseFilter gets invoked.

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.replayRequest()` and `FilterContext.getAsyncHandler()` to decide if the response processing can continue.

- 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.replayRequest() and FilterContext.getAsyncHandler() to decide if the response processing can continue. If FilterContext.replayRequest() return true, a new request will be made using FilterContext.getRequest() and the current response processing will be ignored.
    
    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.