add snippet list

src/services/snippet.js

@@ -1,16 +1,23 @@
 angular.module('codexen.services')
   .factory('Snippet', function ($http, $auth, apiUrl) {
-    var findByUserId = function (userId) {
+    var findByUser = function (user) {
       var url = apiUrl + 'snippets'
 
       return $http.get(url, {
         params: {
-          userId: userId
+          user: user
         }
       })
     }
 
+    var create = function (params) {
+      var url = apiUrl + 'snippets'
+
+      return $http.post(url, params)
+    }
+
     return {
-      findByUserId: findByUserId
+      findByUser: findByUser,
+      create: create
     }
   })