First commit for api

.gitignore

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+/node_modules
+/test

config.js

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+// config.js
+
+const dbConfig = {
+  mysqldb: {
+    host: '192.168.0.170',
+    port: 3306,
+    database: 'sunnymh_mysql',
+    user: 'sunnymh_mysql',
+    password: 'hengserver'
+  }
+};
+
+module.exports = dbConfig;

db.js

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+const config = require('./config');
+
+class DB {
+    constructor() {
+        this.config = null;
+    }
+
+    loadConfig() {
+        this.config = config;
+    }
+}
+
+module.exports = DB;

db_api.jsx

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+const express = require('express');
+const MySQLDB = require('./mysqldb');
+
+const app = express();
+const port = 4000;
+
+app.use(express.json()); // Middleware to parse JSON
+
+// Initialize MySQL database connection
+const mySQLDB = new MySQLDB();
+
+async function initializeDatabases() {
+  try {
+    await mySQLDB.createConnection();
+  } catch (error) {
+    console.error('Failed to initialize databases:', error);
+    process.exit(1);
+  }
+}
+
+app.get('/Pic', async (req, res) => {
+  const mangaId = req.params.id;
+
+  try {
+    const sqlQuery = `SELECT * FROM manga_table WHERE manga_id = ${mySQLDB.connection.escape(mangaId)}`;
+    const mySQLResults = await mySQLDB.query(sqlQuery);
+
+    res.json({ mySQLResults });
+  } catch (error) {
+    res.status(500).json({ error: error.message });
+  }
+});
+
+app.post('/insert', async (req, res) => {
+  const { mangaId, mangaName } = req.body;
+  console.log(mangaId, mangaName);
+});
+
+// Start server after initializing databases
+initializeDatabases().then(() => {
+  app.listen(port, () => {
+    console.log(`API server listening at http://localhost:${port}`);
+  });
+});
+

mysqldb.js

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+const DB = require("./db");
+const mysql = require('mysql2');
+
+class MySQLDB extends DB {
+    constructor() {
+        super();
+        this.connection = null;
+    }
+
+    async createConnection() {
+        this.loadConfig();
+        const { mysqldb } = this.config;
+        this.connection = mysql.createConnection({
+            host: mysqldb.host,
+            port: mysqldb.port,
+            user: mysqldb.user,
+            password: mysqldb.password,
+            database: mysqldb.database,
+            connectTimeout: 0 // disable timeout
+        });
+        await this.connection.connect();
+    }
+
+    async closeConnection() {
+        if (this.connection) {
+            await this.connection.end();
+            this.connection = null;
+        }
+    }
+
+    async query(query) {
+        if (!this.connection) {
+            throw new Error('Database not connected');
+        }
+        const results = await new Promise((resolve, reject) => {
+            this.connection.query(query, (err, rows) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(rows);
+                }
+            });
+        });
+        return results;
+    }
+}
+
+module.exports = MySQLDB;
+

package.json

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+{
+  "name": "sunnymh-db",
+  "version": "1.0.0",
+  "main": "db_api.jsx",
+  "scripts": {
+    "start": "node db_api.jsx",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "express": "^4.21.2",
+    "mongodb": "^6.15.0",
+    "mysql2": "^3.14.0"
+  }
+}