Post call from Nodejs - node.js

Question

I am trying to get an authentication token from an API.
the request is supposed to look like
POST /oauth2/token HTTP/1.1
Host: mysageone.ca.sageone.com
client_id=4b64axxxxxxxxxx00710&
client_secret=iNumzTxxxxxxxxxxhVHstrqWesH8tm9&
code=12a0f9c12cxxxxxxxxxxxxxxx92a48cc1f237ead&
grant_type=authorization_code&
redirect_uri=https://myapp.com/auth/callback
My current code keeps giving me status 400. I have tried to modify the headers but it doesn't work. i have also tried to make the required parameters part of the path using ?.
const http = require('http');
var options = {
hostname: 'app.sageone.com',
path: '/oauth2/token',
method: 'POST',
headers: {
"client_id":"xxxxx",
"client_secret":"xxxxx",
"code":"xxxxxx",
"grant_type":"authorization_code",
"redirect_uri":"https://some link"
}
};
console.log('in users file point 2');
var req1 = http.request(options, (res1) => {
console.log('statusCode:', res1.statusCode);
console.log('headers:', res1.headers);
console.log('message',res1.statusMessage);
res1.on('data', (d) => {
res.json(d);
});
});
req1.on('error', (e) => {
console.error('error starts here',e);
});
req1.end();
});

Answer 1

Looks to me like your problem is not with Node.js, but with your use of Sage One's api. This is the relevant documentation that might solve your problem.
From a quick glance it looks like you want to send a GET not a POST, and you should send those parameters in the URL. Here is the example URL they give:
https://www.sageone.com/oauth2/auth?response_type=code&client_id=4b64axxxxxxxxxx00710&redirect_uri=https://myapp.com/auth/callback


&scope=full_access
I've never used Sage One before, but that would match my experience with other OAuth APIs.