reCaptcha back-end nodejs - node.js

Question

I simply want to verify a reCAPTCHA using NodeJS and am having trouble making the simple call!
I keep getting errors missing-input-response and missing-input-secret.
Attempt 1 using request:
var request = require('request');
...
request.post(
'https://www.google.com/recaptcha/api/siteverify',
{
secret: 'MY_SECRET',
response: recaptcha
},
function (error, response, body) {
// guard
if (error) {
callback(false);
return;
}
if (response.statusCode == 200) {
console.log("BODY", body)
if (body.success) {
callback(true);
} else {
callback(false);
}
}
}
Attempt 2 using https:
var post_req;
var requestBody = {
secret: 'MY_SECRET',
response: recaptcha
};
post_req = https.request('https://www.google.com/recaptcha/api/siteverify', function (res) {
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log('CHUNK: ', chunk);
});
});
post_req.on('error', function (e) {
console.log('ERROR: ', e);
callback(false);
});
post_req.write(requestBody);
post_req.end();
The result is:
{
"success": false,
"error-codes": [
"missing-input-response",
"missing-input-secret"
]
}

Answer 1

Finally found a solution. It seems the issue was with the Content-Type.
This works:
var request = require('request');
...
request.post(
'https://www.google.com/recaptcha/api/siteverify',
{
form: {
secret: 'MY_SECRET',
response: recaptcha
}
},
function (error, response, body) {
if (!error && response.statusCode == 200) {
console.log(body)
}
}
);