HttpAwsQueryHelper

java.lang.Object
- org.restlet.engine.Helper
- - org.restlet.engine.security.AuthenticatorHelper
  - - org.restlet.ext.crypto.internal.HttpAwsQueryHelper

```
public class HttpAwsQueryHelper
extends AuthenticatorHelper
```
Implements the HTTP authentication for the Amazon Web Services.

Constructor Summary

Constructors
Constructor Description

HttpAwsQueryHelper()
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Reference`	`updateReference(Reference resourceRef, ChallengeResponse challengeResponse, Request request)`	Optionally updates the request with a challenge response before sending it.

Methods inherited from class org.restlet.engine.security.AuthenticatorHelper
formatRequest, formatResponse, getChallengeScheme, getLogger, isClientSide, isServerSide, parseRequest, parseResponse, setChallengeScheme, setClientSide, setServerSide

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

- Constructor Detail
  - HttpAwsQueryHelper
```
public HttpAwsQueryHelper()
```
    Constructor.
- Method Detail
  - updateReference
```
public Reference updateReference(Reference resourceRef,
                                 ChallengeResponse challengeResponse,
                                 Request request)
```
    Description copied from class: AuthenticatorHelper
    
    Optionally updates the request with a challenge response before sending it. This is sometimes useful for authentication schemes that aren't based on the Authorization header but instead on URI query parameters or other headers. By default it returns the resource URI reference unchanged.
    
    Overrides:
    
    updateReference in class AuthenticatorHelper
    
    Parameters:
    
    resourceRef - The resource URI reference to update.
    
    challengeResponse - The challenge response provided.
    
    request - The request to update.
    
    Returns:
    
    The original URI reference if unchanged or a new one if updated.