db call modulize

+const mysql = require('mysql');
+const DB_option = require('./db_option');
+
+module.exports = mysql.createConnection(DB_option);

@@ -19,12 +19,8 @@ module.exports = (server, app) => {
                 if (err) throw err;
                  // api의 대답이 있을경우 실행
                 if (api_res) {
-                    const sql = `INSERT INTO dataset (question,option_1,option_2,option_3,option_4,answer,user_id) VALUES (?,?,?,?,?,?,?)`;
-                    db.query(sql, [question, option[0], option[1], option[2], option[3],machine_body.answer,user_id], function (err, result) {
-                        if (err) throw err;
-                        console.log("dataset successfully inserted into DB")
-                    });
-                    return response.send( { answer: machine_body.answer } );
+                    console.log(api_body);
+                    return response.send("ok");
                 }
             });
     }, 60 * 1000); //1분마다 호출