Error using instagram-node - node.js

Question

This is my code run on a node.js server. I have the proper access token obtained from OAuth2.0 protocol as defined in the Instagram developer page.
function getMedia(accessToken) {
var instagram = require('instagram-node').instagram();
instagram.use({
access_token: accessToken
});
instagram.user_self_media_recent(function(err, medias, pagination, remaining, limit) {
if(err) {
console.log(err);
}
console.log(medias);
});
}
I'm getting this in my error response:
{ Error: getaddrinfo ENOTFOUND api.instagram.com api.instagram.com:443
at errnoException (dns.js:28:10)
at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:76:26)
code: 'ENOTFOUND',
errno: 'ENOTFOUND',
syscall: 'getaddrinfo',
hostname: 'api.instagram.com',
host: 'api.instagram.com',
port: 443,
retry: [Function: retry] }
Does anyone know what this error response means?

Answer 1

Quick follow up. I was using Google's Firebase for my backend. On the "Spark" plan you get this warning:
Billing account not configured. External network is not accessible and
quotas are severely limited. Configure billing account to remove these
restrictions
I upgraded to "Blaze" plan and now retrieve data from Instagram.
The answer posted below suggests that I need to initialize the Instagram client with a client_id and client_secret, this is not true. I am getting media posts with just the access_token.
Thanks

Answer 2

When you initialize the instagram client you should use your app's client Id and client secret.
instagram.use({
client_id: INSTA_CLIENT_ID,
client_secret: INSTA_CLIENT_SECRET,
});
Then use the access token you have to authenticate the specific instagram user and request medias on their behalf.
instagram.use({
access_token: accessToken
});
instagram.user_self_media_recent(function(err, medias, pagination, remaining, limit) {
if(err) {
console.log(err);
}
console.log(medias);
});
When you first initialize your instagram node client you must use the authentication credentials that you receive from instagram when you register your app here.