feedback's Introduction

Feedback

This is a project that is on its way to become a feedback website for users. There is more info under the subfolders.

Goal:

A café would like to implement a web site where customers can give feedback on their experience in the cafe.

DB: Tables in DB for client_info and feedback

Backend: Web service with REST interface to read and write from DB.

Frontend: Implement a front end page for users give feedback as below:

User login to the site (using data from client_info table in DB through the web service)
User sees his old feedbacks, but user cannot change them.
User should be able to add a new feedback.
Admin users should be able to see all other users feedbacks.
Admin users should have extra view for statistics (just overall view).

Languages

Back end dev : Java(Spring Framework)
Front end dev:
- For beautiful stats: JavaScript(d3js)
- Everything else: Typescript(Angular)
DevOps: Git + Maven
Databases: Mysql

feedback's People

Contributors

Watchers

feedback's Issues

Login Rework

The workflow for login.

Interfaces:

import com.example.model.User;

import java.util.Optional;

public interface UserAuthenticationService {

  /**
   * Logs in with the given {@code username} and {@code password}.
   *
   * @param username
   * @param password
   * @return an {@link Optional} of a user when login succeeds
   */
  Optional<String> login(String username, String password);

  /**
   * Finds a user by its dao-key.
   *
   * @param token user dao key
   * @return
   */
  Optional<User> findByToken(String token);

  /**
   * Logs out the given input {@code user}.
   *
   * @param user the user to logout
   */
  void logout(User user);
}

import java.util.Optional;
import java.util.UUID;
import java.util.HashMap;

final class UUIDAuthenticationService implements UserAuthenticationService {
  private HashMap<String, ##USER_ID_TYPE##> users;

  @Override
  public Optional<String> login(final String username, final String password) {
    final String uuid = UUID.randomUUID().toString();
    // Validate that the username & password is correct
    if (!OK_password_and_username) {
      return Optional.empty()
    }
    // Get the user id from username
    users.put(uuid, ##USER_ID##) 
    return Optional.of(uuid);
  }

  @Override
  public Optional<User> findByToken(final String uuid) {
    return users.get(uuid);
  }

  @Override
  public void logout(final String uuid) {
    users.remove(uuid)
  }
}

import com.example.model.Feedback;
import com.example.service.FeedbackService;
import com.example.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

@Controller
@RequestMapping(path = "/feedback")
public class LoginController {
    @Autowired
    private UUIDAuthenticationService uuidAuth;

    @GetMapping(path = "/login")
    public @ResponseBody
    String login(@RequestParam String username, @RequestParam String password) {
      Optional<String> os = uuidAuth.login(username, password);
      if (os.isPresent()) {
        return os.get();
      }
      return "";
    }

    @GetMapping(path = "/logout")
    public @ResponseBody
    void logout(@RequestParam int uuid) {
        uuidAuth.logout(uuid);
    }
}

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