Added foursquare API

controllers/api.js

@@ -1,3 +1,34 @@
+var config = require('../config/config.json');
+
+// API PROVIDERS SETUP
+var foursquare = require('node-foursquare')({
+  secrets: {
+    clientId: config.foursquare.clientId,
+    clientSecret: config.foursquare.clientSecret,
+    redirectUrl: config.foursquare.callbackUrl
+  }
+});
+
 exports.apiBrowser = function(req, res) {
   res.render('api');
-};
+};
+
+exports.foursquare = function(req, res) {
+  res.render('api/foursquare', {
+    title: 'Foursquare API'
+  });
+};
+
+exports.foursquareCallback = function(req, res) {
+  foursquare.getAccessToken({
+    code: req.query.code
+  },
+  function(err, accessToken) {
+    if (err) {
+      res.send('An error was thrown: ' + err.message);
+    }
+    else {
+      // Save the accessToken and redirect.
+    }
+  });
+});