var request = require('request');
request.post('https://oauth.yandex.ru/token', {
'grant_type': 'authorization_code',
'code': req.query.code,
'client_id': 'c48956d9f59442bab960f373a6ca5ba2',
'client_secret': '9e46f2c8fefb4f55bf63b06066431c4d',
}, function(err, httpResponse, body) {
console.log(body);
});