OAuth2UserService (spring-security-docs 5.7.1 API)

Type Parameters:

R - The type of OAuth 2.0 User Request

U - The type of OAuth 2.0 User

All Known Implementing Classes:

CustomUserTypesOAuth2UserService, DefaultOAuth2UserService, DelegatingOAuth2UserService, OidcUserService

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 OAuth2UserService<R extends OAuth2UserRequest,U extends OAuth2User>
```
Implementations of this interface are responsible for obtaining the user attributes of the End-User (Resource Owner) from the UserInfo Endpoint using the Access Token granted to the Client and returning an AuthenticatedPrincipal in the form of an OAuth2User.

Since:

5.0

See Also:

OAuth2UserRequest, OAuth2User, AuthenticatedPrincipal

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`U`	`loadUser(R userRequest)`	Returns an `OAuth2User` after obtaining the user attributes of the End-User from the UserInfo Endpoint.

- Method Detail
  - loadUser
```
U loadUser(R userRequest)
    throws OAuth2AuthenticationException
```
    Returns an OAuth2User after obtaining the user attributes of the End-User from the UserInfo Endpoint.
    
    Parameters:
    
    userRequest - the user request
    
    Returns:
    
    an OAuth2User
    
    Throws:
    
    OAuth2AuthenticationException - if an error occurs while attempting to obtain the user attributes from the UserInfo Endpoint