dvcp-node-service/utils/dbUitls.js

const mysql = require("mysql");
const dbConfig = require("../config/db");
module.exports = {
  pool: null,
  init: () => {
    this.pool = mysql.createPool(dbConfig)
  },
  query: sql => new Promise((resolve, reject) => {
    this.pool?.getConnection((err, conn) => {
      if (err) {
        console.log(err)
      } else {
        conn.query(sql, (err, result) => {
          if (err) {
            console.log(err)
            reject(err)
          } else {
            conn.release()
            resolve(result)
          }
        })
      }
    })
  }),
}