ProxyAuthenticator

All Implemented Interfaces:
```
public interface ProxyAuthenticator

                    
```
Provides credentials when an HTTP proxy responds with 407 Proxy Authentication Required.
Implementations inspect the 407 response (typically its Proxy-Authenticate header) and return the request to retry with a Proxy-Authorization header set, or Optional.empty to abandon authentication and surface the 407 to the caller.
Implementations must be thread-safe; they may be invoked concurrently from multiple HTTP calls.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public class`	`ProxyAuthenticator.Companion`

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract Optional<HttpRequest>`	`authenticate(Proxy proxy, HttpRequest request, HttpResponse response)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - authenticate
```
 abstract Optional<HttpRequest> authenticate(Proxy proxy, HttpRequest request, HttpResponse response)
```
    Parameters:
    
    proxy - the proxy that produced the challenge, or Proxy.NO_PROXY if the route is not yet established
    
    request - the request that produced response
    
    response - the 407 challenge response
    
    Returns:
    
    the retry request to send (typically request with a Proxy-Authorization header added), or Optional.empty to abandon authentication