set up sqlite

backend/.gitignore

@@ -1,2 +1,3 @@
 node_modules/
 .env
+database.sqlite

backend/README.md

@@ -4,7 +4,7 @@
 
 - Node.js
 - Express
-- MySQL
+- SQLite
 
 ## Install dependencies
 
@@ -12,8 +12,28 @@
 npm install
 ```
 
+## Set up database
+
+```bash
+npm run migrate
+```
+
 ## Run the development server
 
 ```bash
-node dev
+npm run start
+```
+
+## Database operation command
+
+### drop table
+
+```bash
+npm run drop
+```
+
+### add seed data
+
+```bash
+npm run seed
 ```

backend/config/config.json

@@ -0,0 +1,14 @@
+{
+  "development": {
+    "dialect": "sqlite",
+    "storage": "database.sqlite"
+  },
+  "test": {
+    "dialect": "sqlite",
+    "storage": "database.test.sqlite"
+  },
+  "production": {
+    "dialect": "sqlite",
+    "storage": "database.production.sqlite"
+  }
+}

backend/migrations/20240204090345-create-projects.js

@@ -0,0 +1,33 @@
+'use strict';
+
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.createTable('Projects', {
+      id: {
+        type: Sequelize.INTEGER,
+        primaryKey: true,
+        autoIncrement: true,
+      },
+      name: {
+        type: Sequelize.STRING,
+        allowNull: false,
+      },
+      detail: {
+        type: Sequelize.STRING,
+        allowNull: false,
+      },
+      createdAt: {
+        type: Sequelize.DATE,
+        allowNull: false,
+      },
+      updatedAt: {
+        type: Sequelize.DATE,
+        allowNull: false,
+      },
+    });
+  },
+
+  down: async (queryInterface, Sequelize) => {
+    await queryInterface.dropTable('Projects');
+  },
+};

backend/models/index.js

@@ -0,0 +1,50 @@
+"use strict";
+
+const fs = require("fs");
+const path = require("path");
+const Sequelize = require("sequelize");
+const process = require("process");
+const basename = path.basename(__filename);
+const env = process.env.NODE_ENV || "development";
+const config = require(__dirname + "/../config/config.json")[env];
+const db = {};
+
+let sequelize;
+if (config.use_env_variable) {
+  sequelize = new Sequelize(process.env[config.use_env_variable], config);
+} else {
+  sequelize = new Sequelize(
+    config.database,
+    config.username,
+    config.password,
+    config
+  );
+}
+
+fs.readdirSync(__dirname)
+  .filter((file) => {
+    return (
+      file.indexOf(".") !== 0 &&
+      file !== basename &&
+      file.slice(-3) === ".js" &&
+      file.indexOf(".test.js") === -1
+    );
+  })
+  .forEach((file) => {
+    const model = require(path.join(__dirname, file))(
+      sequelize,
+      Sequelize.DataTypes
+    );
+    db[model.name] = model;
+  });
+
+Object.keys(db).forEach((modelName) => {
+  if (db[modelName].associate) {
+    db[modelName].associate(db);
+  }
+});
+
+db.sequelize = sequelize;
+db.Sequelize = Sequelize;
+
+module.exports = db;

backend/models/projects.js

@@ -0,0 +1,14 @@
+module.exports = (sequelize, DataTypes) => {
+  const Project = sequelize.define("Project", {
+    name: {
+      type: DataTypes.STRING,
+      allowNull: false,
+    },
+    detail: {
+      type: DataTypes.STRING,
+      allowNull: false,
+    },
+  });
+
+  return Project;
+};

backend/package.json

@@ -5,12 +5,17 @@
   "main": "index.js",
   "scripts": {
     "start": "node index",
+    "migrate": "bash scripts/migrate.sh",
+    "seed": "bash scripts/seed.sh",
+    "drop": "bash scripts/drop.sh",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "",
   "license": "ISC",
   "dependencies": {
     "express": "^4.18.2",
-    "mysql": "^2.18.1"
+    "sequelize": "^6.36.0",
+    "sequelize-cli": "^6.6.2",
+    "sqlite3": "^5.1.7"
   }
 }

backend/scripts/drop.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+npx sequelize db:migrate:undo:all
+echo "Dropped 'Project' table."

backend/scripts/migrate.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+npx sequelize db:migrate
+echo "Migration complete."

backend/scripts/seed.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+npx sequelize db:seed:all

backend/seeders/seed.js

@@ -0,0 +1,30 @@
+'use strict';
+
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    return queryInterface.bulkInsert('Projects', [
+      {
+        name: 'Project 1',
+        detail: 'Details of Project 1',
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      },
+      {
+        name: 'Project 2',
+        detail: 'Details of Project 2',
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      },
+      {
+        name: 'Project 3',
+        detail: 'Details of Project 3',
+        createdAt: new Date(),
+        updatedAt: new Date(),
+      },
+    ]);
+  },
+
+  down: async (queryInterface, Sequelize) => {
+    // do nothing
+  },
+};