Refactoring, comments, moving trie lib to a separate file

lib/trie.js

@@ -0,0 +1,38 @@
+/**
+ * Class for the node of the tree containing the folders
+ * @param {object} options - Contains details about the folder/collection node
+ * @returns {void}
+ */
+function Node (options) {
+  // human-readable name
+  this.name = options ? options.name : '/';
+
+  // number of requests in the sub-trie of this node
+  this.requestCount = options ? options.requestCount : 0;
+
+  this.type = options ? options.type : 'item';
+
+  // stores all direct folder descendants of this node
+  this.children = {};
+
+  this.requests = options ? options.requests : []; // request will be an array of objects
+
+  this.addChildren = function (child, value) {
+    this.children[child] = value;
+  };
+
+  this.addMethod = function (method) {
+    this.requests.push(method);
+  };
+}
+
+class Trie {
+  constructor(node) {
+    this.root = node;
+  }
+}
+
+module.exports = {
+  Trie: Trie,
+  Node: Node
+};