start with adapter

adapter/mysql.js

@@ -0,0 +1,9 @@
+const {connection} = require('../config/mysql')
+
+const getData = (option_key = '', callback) => connection.query(`SELECT * FROM db_test.keywords WHERE option_key = '${option_key}'  LIMIT 1`,(error, results, fields) => {
+    const [response] = results
+    let parseResponse = response?.value || '';
+    parseResponse = parseResponse.split(',') || []
+    callback(parseResponse)
+});
+module.exports = {getData}