// Next.js API route support: https://nextjs.org/docs/api-routes/introduction import type { NextApiRequest, NextApiResponse } from 'next'; import Res from "../../server/db/connect"; const pool = new Res; type Data = { name: string } export default function handler( req: NextApiRequest, res: NextApiResponse ) { const _data = req.body._data; if (req.method === 'POST') { pool.query("SELECT salt FROM user WHERE login=?", [_data.name], function(err, rows) { if (rows.length<1) { res.status(200).json({error:'Неверный логин'}); console.log({error:'Неверный логин'}); } else { res.status(200).json({error:'Неверный пароль'}); console.log({error:'Неверный пароль'}); } }) } }