const sql = require('sql-tag');
const out = sql`SELECT * FROM biz WHERE id = ${'foo'}`;
// => { sql: 'SELECT * FROM biz WHERE id = ?', query: 'SELECT * FROM biz WHERE id = $1', values: ['foo'] }

const sql = require('sql-tag');
const foo = 'bar';
const out = sql`SELECT * FROM biz
  WHERE id = ${foo}
`;
// => { sql: 'SELECT * FROM biz\n  WHERE id = ?\n', query: 'SELECT * FROM biz\n  WHERE id = $1\n', values: ['bar'] }

const pg = require('pg');
const client = new pg.Client();
const sql = require('sql-tag');
client.connect(function (err) {
  if (err) throw err;
  client.query(sql`SELECT * FROM foo WHERE id = ${'foo'}`).then(console.log);
});

const mysql = require('mysql');
const connection = mysql.createConnection({ user: 'root', password: 'root' });
const sql = require('sql-tag');
connection.query(sql`SELECT * FROM foo WHERE id = ${'foo'}`, (err, rows) => console.log(err, rows));