AuthenticationProvider (Helidon Project 2.6.9 API)

All Superinterfaces:

SecurityProvider

All Known Implementing Classes:

GoogleTokenProvider, HeaderAtnProvider, HttpBasicAuthProvider, HttpDigestAuthProvider, HttpSignProvider, JwtAuthProvider, JwtProvider, OidcProvider

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 AuthenticationProvider
extends SecurityProvider
```
Authentication security provider. Expected to authenticate the request and provide a Subject to the security component, that would be available through SecurityContext.

See Also:

SecurityProvider.supportedAnnotations(), SecurityProvider.supportedCustomObjects(), SecurityProvider.supportedConfigKeys()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`CompletionStage<AuthenticationResponse>`	`authenticate(ProviderRequest providerRequest)`	Authenticate a request.

Methods inherited from interface io.helidon.security.spi.SecurityProvider
supportedAnnotations, supportedAttributes, supportedConfigKeys, supportedCustomObjects

- Method Detail
  - authenticate
```
CompletionStage<AuthenticationResponse> authenticate(ProviderRequest providerRequest)
```
    Authenticate a request. This may be just resolving headers (tokens) or full authentication (basic auth). Do not throw exception for normal processing (e.g. invalid credentials; you may throw an exception in case of misconfiguration). This method will be invoked for inbound requests ONLY.
    This method must provide either a Principal or a whole Subject either for a user or for service (or both).
    
    Parameters:
    
    providerRequest - context of this security enforcement/validation
    
    Returns:
    
    response that either authenticates the request, fails authentication or abstains from authentication
    
    See Also:
    
    AuthenticationResponse.success(Subject)