demo-auth-flow/demo-resource-server/src/main/java/ru/digitalbanana/demoresourceserver/web/controller/UserInfoController.java

package ru.digitalbanana.demoresourceserver.web.controller;

import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.annotation.AuthenticationPrincipal;
import org.springframework.security.oauth2.jwt.Jwt;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;

import lombok.extern.slf4j.Slf4j;
import ru.digitalbanana.demoresourceserver.persistence.model.UserEntity;
import ru.digitalbanana.demoresourceserver.service.UserService;

@Slf4j
@CrossOrigin(origins = "*")
@RestController
public class UserInfoController {

    private final UserService userService;

    @Autowired
    public UserInfoController(final UserService userService) {
        this.userService = userService;
    }

    @GetMapping(value = "/userinfo")
    public String userinfo(@AuthenticationPrincipal Jwt principal) {
        return principal.getClaimAsString("email");
    }

    @GetMapping(value = "/users")
    public List<UserEntity> allUsers() {
        log.debug("Request all users");
        return StreamSupport
            .stream(userService.findAll().spliterator(), false)
            .filter(user -> user.getEmail() != null)
            .collect(Collectors.toList())
        ;
    }

}