Added Source Management - updating and replacing source

Source Management/Add Payment Source/index.js

@@ -0,0 +1,24 @@
+var app = require('express')();
+var http = require('http').Server(app);
+var stripe = require('stripe')(
+  "your_stripe_key"
+);
+var bodyParser = require('body-parser');
+
+app.use(bodyParser.urlencoded({ extended: true }));
+app.use(bodyParser.json());
+
+//add a payment source (card) to customerid
+exports.addPaymentSource = app.get("/:customerid/:tok", function addPaymentSource (req,res){
+  stripe.customers.createSource(
+  req.params.customerid,
+  { source: req.params.tok},
+  function(err, card) {
+    // asynchronously called
+    if(err) {
+      return res.send(JSON.stringify(err));
+    }
+    //returns new source id to client
+    res.send(JSON.stringify(card["id"]));
+  });
+});

Source Management/Update Payment Source/index.js

@@ -0,0 +1,32 @@
+var app = require('express')();
+var http = require('http').Server(app);
+var stripe = require('stripe')(
+  "your_stripe_key"
+);
+var bodyParser = require('body-parser');
+
+app.use(bodyParser.urlencoded({ extended: true }));
+app.use(bodyParser.json());
+
+//update a card by deleting & replacing
+exports.updatePaymentSource = app.get("/:customerid/:oldsourceid/:newsourcetoken", function updatePaymentSource (req,res){
+	stripe.customers.deleteCard(
+  		req.params.customerid,
+  		req.params.oldsource,
+  	function(err, confirmation) {
+		if(err) {
+      		return res.send(JSON.stringify(err));
+    	}
+    	stripe.customers.createSource(
+  			req.params.customerid,
+  		{ source: req.params.newsource },
+  		function(err, card) {
+			if(err) {
+      			return res.send(JSON.stringify(err));
+    		}
+          //returns the new source id only
+          res.send(JSON.stringify(card["id"]));
+        });
+
+  	});
+});