node, mysql connection test

+module.exporst = {
+  host     : 'localhost',
+  user     : 'root',
+  password : 'Dltgld55%%',
+  port     : 3306,
+  database : 'my_db'
+};
\ No newline at end of file

+const mysql = require('mysql');
+const option = require('./db_option');
+const connection = mysql.createConnection(option);
+
+connection.connect();
+
+connection.query('SELECT * FROM Persons', (err, rows, fields) => {
+    if (!err) {
+        console.log('The solution is :', rows);
+    }
+    else {
+        console.error('error: ', err);
+    }
+});
+
+connection.end();
\ No newline at end of file

+{
+  "name": "express-mysql",
+  "version": "1.0.0",
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+  "requires": true,
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+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
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+      "requires": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+    },
+    "type-is": {
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      }
+    },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+    },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
+    "vary": {
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+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    }
+  }
+}

+{
+  "name": "express-mysql",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "4.17.0",
+    "mysql": "2.17.1"
+  }
+}

@@ -17,6 +17,7 @@
     "http-errors": "~1.6.2",
     "http-errors": "~1.6.2",
     "morgan": "~1.9.0",
     "morgan": "~1.9.0",
     "mysql": "^2.16.0",
     "mysql": "^2.16.0",
+    "pm2": "^3.5.0",
     "request": "^2.88.0",
     "request": "^2.88.0",
     "socket.io": "^2.1.1"
     "socket.io": "^2.1.1"
   }
   }