How to disable post and put in express.js?

Question

JavaScript

How to disable POST and PUT requests in express.js? Express.js is connected to the MySQL DBMS. It is necessary to make sure that only users who are in the database can receive these requests.

Answer 1

Something like this:

const mysql = require('some-mysql-library');
const app = express();
// ...
function getUserFromMysqlMiddleware(req, res, next) {
  mysql.query('SELECT * FROM `users` WHERE `id`=? LIMIT 1', [req.query.userid]).then(([user]) => {
    if(!user) {
      const err = new Error('Access denied');
      err.status = 403;
      return next(err);
    }
    req.user = user;
    next();
  }).catch(next);
}
app.post('/some/route', getUserFromMysqlMiddleware, (req, res) => {
  // Ваш код с гарантированным наличием req.user
});
app.put('/some/route', getUserFromMysqlMiddleware, (req, res) => {
  // Ваш код с гарантированным наличием req.user
});

Answer 2

if(user_has_rigth){
// Your code
}
else{
// you haven't paid for the premium plan, but you can pay for it on this page
}