SignatureCalculator (AHC/Client 3.0.0.Beta1 API)

All Known Implementing Classes:

OAuthSignatureCalculator

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface SignatureCalculator
```
Interface that allows injecting signature calculator into RequestBuilder so that signature calculation and inclusion can be added as a pluggable component.

Since:

1.1

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`calculateAndAddSignature(Request request, RequestBuilderBase<?> requestBuilder)`	Method called when `RequestBuilderBase.build()` method is called.

- Method Detail
  - calculateAndAddSignature
```
void calculateAndAddSignature(Request request,
                              RequestBuilderBase<?> requestBuilder)
```
    Method called when RequestBuilderBase.build() method is called. Should first calculate signature information and then modify request (using passed RequestBuilder) to add signature (usually as an HTTP header).
    
    Parameters:
    
    requestBuilder - builder that can be used to modify request, usually by adding header that includes calculated signature. Be sure NOT to call RequestBuilderBase.build() since this will cause infinite recursion
    
    request - Request that is being built; needed to access content to be signed