Update including databases

@@ -117,3 +117,5 @@ dist
 .yarn/install-state.gz
 .pnp.*
 
+#db
+app/src/databases/*
\ No newline at end of file

@@ -10,15 +10,13 @@ const compression = require("compression");
 const methodOverride = require("method-override");
 var cors = require("cors");
 const { logger } = require("./src/config/winston");
-
+//app이라는 express 객체 생성
 const app = express();
 //라우팅
 const home = require("./src/routes/home");
 
 const port = 3000;
 
-//controller갖고있는 모듈 생성
-// const index = require("../controllers/indexController");
 const jwtMiddleware = require("./src/config/jwtMiddleware");
 
 // 앱 세팅

@@ -26,10 +26,12 @@
   "devDependencies": {},
   "scripts": {
     "start": "nodemon ./bin/www.js",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "dev": "NODE_ENV=development node index.js",
+    "prod": "NODE_ENV=production node index.js"
   },
-  "author": "",
+  "author": "Jeongmin Seo, Jumi Yang",
   "license": "ISC",
   "keywords": [],
-  "description": ""
+  "description": "Node.js API Server"
 }

 const mysql = require("mysql");
+const { logger } = require("./winston");
+const mysql2 = require("mysql2/promise");
+
 
 const db = mysql.createConnection({
     host: process.env.DB_HOST,
@@ -7,6 +10,61 @@ const db = mysql.createConnection({
     database: process.env.DB_DATABASE, //schema
 });
 
+const pool = mysql2.createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_DATABASE, //schema
+});
+
+const exampleNonTransaction = async (sql, params) => {
+    try {
+        const connection = await db.getConnection(async (conn) => conn);
+        try {
+            const [rows] = await connection.query(sql, params);
+            connection.release();
+        return rows;
+      } catch (err) {
+          logger.error(
+              `example non transaction Query error\n: ${JSON.stringify(err)}`
+              );
+              connection.release();
+              return false;
+            }
+        } catch (err) {
+            logger.error(
+                `example non transaction DB Connection error\n: ${JSON.stringify(err)}`
+                );
+                return false;
+            }
+  };
+  
+  const exampleTransaction = async (sql, params) => {
+      try {
+          const connection = await db.getConnection(async (conn) => conn);
+          try {
+              await connection.beginTransaction(); // START TRANSACTION
+              const [rows] = await connection.query(sql, params);
+              await connection.commit(); // COMMIT
+              connection.release();
+        return rows;
+    } catch (err) {
+        await connection.rollback(); // ROLLBACK
+        connection.release();
+        logger.error(`example transaction Query error\n: ${JSON.stringify(err)}`);
+        return false;
+    }
+} catch (err) {
+    logger.error(
+        `example transaction DB Connection error\n: ${JSON.stringify(err)}`
+        );
+        return false;
+    }
+  };
+  
 db.connect();
  
-module.exports = db;
\ No newline at end of file
+module.exports = {
+    db,
+    pool: pool,
+}
\ No newline at end of file

@@ -2,22 +2,11 @@
 //for DB manipulate
 const RestaurantStorage = require("./RestaurantStorage");
 
-const { db } = require("../config/db");
+const { pool } = require("../config/db");
 const { logger } = require("../config/winston");
 const jwt = require("jsonwebtoken");
-//controller가 db에 접근하기 위해 Dao folder
-//controller 실행하다가 db 접근해야하는 일 있을 때 Dao들어가서 query 실행하고 그 값을 반환
-// const indexDao = require("../dao/indexDao");
 
-
-class Restaurant {
-    constructor(body) {
-        this.body = body;
-    }
-}
-
-// ex. 식당 테이블 조회
-exports.readRestaurants = async function (req, res){
+exports.readRestaurants = async function (req,res) {
   const {category} = req.query;
   
   if (category) {
@@ -37,8 +26,7 @@ exports.readRestaurants = async function (req, res){
     try {
       //mysql접속 관련 부분 정의하는 함수
       //es6 비구조할당
-      //indexDao에 selectRestaurants 정의해줘야 함. 그리고 거기서 query문.
-      const [rows] = await indexDao.selectRestaurants(connection, category);
+      const [rows] = await RestaurantStorage.selectRestaurants(connection, category);
   
       return res.send({
         result: rows,
@@ -56,5 +44,4 @@ exports.readRestaurants = async function (req, res){
     logger.error(`readRestaurants DB Connection error\n: ${JSON.stringify(err)}`);
     return false;
   }
-
 }
\ No newline at end of file

 'use strict';
 //for DB CRUD
-const db = require("../config/db");
-
-
-// class RestaurantStorage {    
-    
-//     static getRestaurantInfo(id) {
-//         return new Promise((resolve, reject) => {
-//             const query = "SELECT * FROM users WHERE id = ?;";
-//             db.query(query, [id], (err, data) => {
-//                 if (err) reject(`${err}`);
-//                 // console.log(data[0]);
-//                 resolve(data[0]);
-//             });
-//         });
-//     }
-
-//     static async save(userInfo) {
-//         return new Promise((resolve, reject) => {
-//             const query = "INSERT INTO users(id, name, password) VALUES(?, ?, ?);";
-//             db.query(
-//                 query, 
-//                 [userInfo.id, userInfo.name, userInfo.password],
-//                 (err, data) => {
-//                     if (err) reject(`${err}`);
-//                     // console.log(data[0]);
-//                     resolve({ success: true});
-//                 }
-//             );
-//         });
-//     }
-// }
-
-// module.exports = UserStorage;
\ No newline at end of file
+const pool = require("../config/db");
+
+exports.selectRestaurants = async function (connection, category) {
+
+        const selectAllRestaurantsQuery = `select title, address, category from restaurants where status='A';`;
+        const selectCategorizedRestaurantsQuery = `select title, address, category from restaurants where status='A' and category=?;`;
+        
+        const Params = [category];
+        
+        const Query = category ? selectCategorizedRestaurantsQuery : selectAllRestaurantsQuery;
+        
+        const rows = await connection.query(Query, Params);
+        
+        return rows;
+    
+}
+
+    
\ No newline at end of file

 'use strict';
-//for DB manipulate
+
 const UserStorage = require("./UserStorage");
 
 class User {
@@ -9,8 +9,6 @@ class User {
 
     async login() {
         const client = this.body;
-        try {
-
         const {id, password} = await UserStorage.getUserInfo(client.id);
         // console.log(id, password);
         
@@ -21,9 +19,6 @@ class User {
             return { success : false, msg: "비밀번호가 틀렸습니다."};
         }
         return {success: false, msg: "존재하지 않는 아이디입니다."};
-        } catch (err) {
-            return {success: false, msg: err};
-        }
     }
 
     async register() {

 'use strict';
-//for DB CRUD
-const db = require("../config/db");
-
+//파일시스템 이용해서 파일 접근 및 DB 관리
+const fs = require("fs").promises;
 
 class UserStorage {
 
+    static #getUserInfo(data, id) {
+        const users = JSON.parse(data);
+        const idx = users.id.indexOf(id);
+        const userKeys = Object.keys(users); // [id, password, name]
+        const userInfo = userKeys.reduce((newUser, info) => {
+            newUser[info] = users[info][idx];
+            return newUser;
+        }, {});
+        // console.log(userInfo);
+        return userInfo;
+    }
+
+    static #getUsers(data, isAll, fields) {
+        const users = JSON.parse(data);
+        if (isAll) return users;
+
+        const newUsers = fields.reduce((newUsers, field) => {
+            if (users.hasOwnProperty(field)) {
+                newUsers[field] = users[field];
+            }
+            return newUsers;
+        }, {});
+        return newUsers;
+    }
+    
+    static getUsers(isAll, ...fields) {
+        return fs
+            .readFile("./src/databases/users.json")
+            .then((data) => {
+                return this.#getUsers(data, isAll, fields);
+            })
+            .catch((err) => console.error);
+    }
+
     static getUserInfo(id) {
-        return new Promise((resolve, reject) => {
-            const query = "SELECT * FROM users WHERE id = ?;";
-            db.query(query, [id], (err, data) => {
-                if (err) reject(`${err}`);
-                // console.log(data[0]);
-                resolve(data[0]);
-            });
-        });
+        return fs
+            .readFile("./src/databases/users.json")
+            .then((data) => {
+                return this.#getUserInfo(data, id);
+            })
+            .catch((err) => console.error);
     }
 
     static async save(userInfo) {
-        return new Promise((resolve, reject) => {
-            const query = "INSERT INTO users(id, name, password) VALUES(?, ?, ?);";
-            db.query(
-                query, 
-                [userInfo.id, userInfo.name, userInfo.password],
-                (err, data) => {
-                    if (err) reject(`${err}`);
-                    // console.log(data[0]);
-                    resolve({ success: true});
+        const users = await this.getUsers(true);
+        //id가 없으면 회원가입 가능
+        if (users.id.includes(userInfo.id)) {
+            throw "이미 존재하는 아이디입니다.";
         }
-            );
-        });
+        users.id.push(userInfo.id);
+        users.name.push(userInfo.name);
+        users.password.push(userInfo.password);
+        fs.writeFile("./src/databases/users.json", JSON.stringify(users));
+        return { success: true};
     }
 }
 

@@ -16,9 +16,9 @@ const output = {
         res.render("home/register");
     },
 
-    restaurants: (req, res) => {
-        res.render("home/restaurants");
-    }
+    // restaurants: (req, res) => {
+    //     res.render("home/restaurants");
+    // }
 };
 
 const process = {

@@ -3,13 +3,16 @@
 const express = require("express");
 const router = express.Router();
 // const index = require("../../controllers/indexController");
+const jwtMiddleware = require("../../config/jwtMiddleware");
+const Restaurant = require("../../models/Restaurant");
 
 const ctrl = require("./home.ctrl");
 
 router.get("/", ctrl.output.hello);
 router.get("/login", ctrl.output.login);
 router.get("/register", ctrl.output.register);
-router.get("/restaurants", ctrl.output.restaurants);
+router.get("/restaurants", Restaurant.readRestaurants);
+// router.get("/restaurants", ctrl.output.restaurants);
 
 router.post("/login", ctrl.process.login);
 router.post("/register", ctrl.process.register);