src/main/java/com/authlete/jaxrs/api/AuthleteApiImpl.java
@Override
    public UserInfoResponse userinfo(UserInfoRequest request) throws AuthleteApiException
    {
        return executeApiCall(
                new ServicePostApiCaller<UserInfoResponse>(
                        UserInfoResponse.class, request, AUTH_USERINFO_API_PATH));
    }
@Override
    public UserInfoResponse userinfo(UserInfoRequest request) throws AuthleteApiException
    {
        return executeApiCall(
                new ServicePostApiCaller<UserInfoResponse>(
                        UserInfoResponse.class, request, AUTH_USERINFO_API_PATH));
    }
Call {@code /api/auth/userinfo} API.