I’ve finally managed to do it.
Answer in code snippet below:
var querystring = require('querystring');
var request = require('request');
var form = {
username: 'usr',
password: 'pwd',
opaque: 'opaque',
logintype: '1'
};
var formData = querystring.stringify(form);
var contentLength = formData.length;
request({
headers: {
'Content-Length': contentLength,
'Content-Type': 'application/x-www-form-urlencoded'
},
uri: 'http://myUrl',
body: formData,
method: 'POST'
}, function (err, res, body) {
//it works!
});