A rough example of getting an Auth token from GameWisp's API using NodeJS

app.js

//relevant contents of package.json
/*
{
  "dependencies": {
    "express": "https://registry.npmjs.org/express/-/express-4.10.2.tgz",
    "express-redis": "1.2.3",
    "express-ws": "^2.0.0",
    "msgpack-lite": "^0.1.26",
    "raygun": "^0.9.0",
    "redis": "^2.6.3",
    "restler": "^3.4.0",
    "socket.io-redis": "^2.0.1",
    "socketio": "^1.0.0",
		"simple-oauth2": "latest"
  },
}
*/

//contents of app.js
//initialization
var app = require('express')();
var server = require('http').Server(app);
var rest = require('restler');

const endPoint = '<your_redirect_ui>';
const prodClientID = '';
const prodClientSecret = '';
const prodTokenHost = 'https://api.gamewisp.com';

//universal defaults
var nodePort = your_node_server_port;


//oauth 
// Set the configuration settings -- you can switch out dev and production here. 
const credentials = {
  client: {
    id: prodClientID,
    secret: prodClientSecret
  },
  auth: {
    tokenHost: prodTokenHost,
    tokenPath: '/pub/v1/oauth/token',
    authorizePath: '/pub/v1/oauth/authorize'
  }
};
 
// Initialize the OAuth2 Library 
const oauth2 = require('simple-oauth2').create(credentials);

// Authorization oauth2 URI 
const authorizationUri = oauth2.authorizationCode.authorizeURL({
  redirect_uri: endPoint,
  scope: '<your_scopes>',
  state: '<your_state>'
});
 
// Redirect example using Express (see http://expressjs.com/api.html#res.redirect) 


//ROUTES
//basic endpoint to auth a channel.
app.get('/auth', function(req, res){
  res.redirect(authorizationUri);
});


//basic up and running page
app.get('/', function(req, res){
  res.send('<h1>You made it to the test service</h1> <p> Hit /auth if you need to authorize a channel. </p>');
});

//use this as the redirect_uri for your client credentials.
//the route needs to handle the path defined by your redirect_uri. Mine is auth_test, the registered redirect_uri
//in my case is http://localhost:3333/auth_test
app.get('/auth_test', function(req,res){
  const code = req.query.code;
  const tokenConfig = {
    code: code,
    redirect_uri: endPoint
  };

   oauth2.authorizationCode.getToken(tokenConfig, (error, result) => {
    if (error) {
      console.error('Access Token Error', error.message);
      return res.send('Authentication failed. Here is the error: ' + error.message);
    }

    console.log('The resulting token: ', result);
    const token = oauth2.accessToken.create(result);

    return res
      .status(200)
      .send('You got a token. Here it is: ' + JSON.stringify(token));
  });
});


server.listen(nodePort);

//made it
console.log('Up and running! Hit the / endpoint for options.');