start with adapter

adapter/index.js

@@ -0,0 +1,12 @@
+const {getData} = require('./mysql')
+
+const get = (step) => new Promise((resolve, reject) => {
+    if(process.env.DATABASE === 'mysql'){
+        getData(step,(dt) => {
+            console.log('--->datos--',dt)
+            resolve(dt)
+        });
+    }
+})
+
+module.exports = {get}

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}