const client = new Client({
    user: 'ozan',
    host: 'localhost',
    database: 'blogpage',
    password: 'test',
    port: 5432,
});
client.connect();

client.query('SELECT * from persons', (err, res) => {
    console.log(err, res);
    client.end()
});`

routes.post('/signup',(req, res)=> {


    const data = {username: req.body.usernamebody, email: req.body.emailbody, password: req.body.passwordbody};


    client.query('INSERT INTO persons(username,password,email) values($1, $2,$3)',
        [data.username, data.password, data.email]);


    });